1 00:00:07,007 --> 00:00:07,507 The Artemis 2 00:00:07,507 --> 00:00:11,211 two mission is a test mission of the Orion space capsule. 3 00:00:13,113 --> 00:00:14,881 Artemis two will be the first time 4 00:00:14,881 --> 00:00:17,884 we put humans on this rocket. 5 00:00:18,785 --> 00:00:20,887 We're going back to the moon because it's the next step 6 00:00:20,887 --> 00:00:23,890 in our journey to Mars. 7 00:00:25,825 --> 00:00:28,828 We were always going to the moon. 8 00:00:29,062 --> 00:00:32,632 Pushing ourselves to explore is just core to who we are. 9 00:00:32,632 --> 00:00:34,801 That's a part of being a human. 10 00:00:34,801 --> 00:00:37,537 And lift up. 11 00:00:37,537 --> 00:00:40,540 We shall return. 12 00:00:41,074 --> 00:00:43,710 Continuing to test out every bit of Orion. 13 00:00:43,710 --> 00:00:44,544 Coming back to Earth. 14 00:00:44,544 --> 00:00:46,546 Seven miles. Seven miles. 15 00:00:46,546 --> 00:00:49,682 When humanity sets big goals, we can bring together 16 00:00:49,682 --> 00:00:51,451 genius from around the world. 17 00:00:51,451 --> 00:00:53,086 You have the best people 18 00:00:53,086 --> 00:00:56,089 on planet Earth putting this vehicle together. 19 00:00:56,990 --> 00:00:57,857 That's what's up. 20 00:00:57,857 --> 00:00:59,659 To innovate for the benefit of humanity 21 00:00:59,659 --> 00:01:02,562 and to inspire the world through discovery. And here we go. 22 00:01:18,078 --> 00:01:19,145 Good morning. 23 00:01:19,145 --> 00:01:20,113 From Firing room 24 00:01:20,113 --> 00:01:24,150 one at NASA's Kennedy Launch Control Center in Florida. 25 00:01:24,551 --> 00:01:28,354 You're looking at a live view of Launch Complex 39 B, 26 00:01:28,588 --> 00:01:32,325 or the SLS or Space Launch System rocket and Orion 27 00:01:32,325 --> 00:01:36,162 spacecraft are getting ready to lift off in a little over 28 00:01:36,162 --> 00:01:39,499 ten hours for the agency's Artemis two mission. 29 00:01:39,966 --> 00:01:41,167 I'm Antonia Jaramillo. 30 00:01:41,167 --> 00:01:42,535 with NASA communications 31 00:01:42,535 --> 00:01:44,771 and I, along with my fellow commentators, 32 00:01:44,771 --> 00:01:47,340 will take you through today's launch countdown 33 00:01:47,340 --> 00:01:50,076 and the rest of this historic mission, 34 00:01:50,076 --> 00:01:53,079 NASA will be providing 24-7 live coverage, 35 00:01:53,113 --> 00:01:56,149 starting with our propellant loading operations, 36 00:01:56,149 --> 00:01:56,983 and will continue 37 00:01:56,983 --> 00:01:59,786 throughout the course of this ten day mission. 38 00:01:59,786 --> 00:02:02,021 Now, our Artemis launch director, Charlie Blackwell 39 00:02:02,021 --> 00:02:05,925 Thompson, gave the go to proceed with cryogenic propellant. 40 00:02:05,925 --> 00:02:08,728 Loading at 7:33 a.m. 41 00:02:08,728 --> 00:02:11,831 Eastern time this morning, which means pretty soon, 42 00:02:11,931 --> 00:02:15,101 teams will start fueling the rocket with cryogenic 43 00:02:15,101 --> 00:02:19,272 or super cold liquid hydrogen and liquid oxygen. 44 00:02:19,973 --> 00:02:21,708 You can see on your screen there is a view of 45 00:02:21,708 --> 00:02:22,876 firing room one. 46 00:02:22,876 --> 00:02:24,010 That is where the Artemis 47 00:02:24,010 --> 00:02:27,280 launch team is currently on console and is getting ready 48 00:02:27,280 --> 00:02:30,817 to launch the SLS rocket and Orion spacecraft. 49 00:02:31,818 --> 00:02:32,519 Now, Artemis 50 00:02:32,519 --> 00:02:36,156 two is NASA's first crewed Artemis mission. 51 00:02:36,623 --> 00:02:40,693 This test flight will send NASA astronauts Reed Wiseman, 52 00:02:40,894 --> 00:02:42,629 Victor Glover, Christina 53 00:02:42,629 --> 00:02:46,666 Cook and Canadian Space Agency astronaut Jeremy Hansen 54 00:02:46,799 --> 00:02:49,802 on a ten day mission around the moon and back. 55 00:02:51,571 --> 00:02:53,640 Now, the countdown for this mission started 56 00:02:53,640 --> 00:02:57,944 on Monday, March 30th at 4:44 p.m. 57 00:02:57,944 --> 00:02:59,646 Eastern time. 58 00:02:59,646 --> 00:03:01,648 One thing to note about the countdown clock 59 00:03:01,648 --> 00:03:03,283 that you see on your upper left 60 00:03:03,283 --> 00:03:04,951 hand side of your screen there is. 61 00:03:04,951 --> 00:03:07,086 You're going to hear us refer to what are called 62 00:03:07,086 --> 00:03:10,156 L minus times and T minus times. 63 00:03:10,823 --> 00:03:13,893 Now, the reason we have these two different references 64 00:03:13,893 --> 00:03:14,727 for the countdown 65 00:03:14,727 --> 00:03:18,731 clock is because the L refers to how much time is left 66 00:03:18,731 --> 00:03:22,368 until the opening of our launch window, or until launch. 67 00:03:23,036 --> 00:03:26,372 Think of it like the regular time that you see on your clock. 68 00:03:26,472 --> 00:03:28,942 Always constantly ticking down. 69 00:03:28,942 --> 00:03:31,277 The T clock, however, is specific 70 00:03:31,277 --> 00:03:33,947 to the actual countdown. 71 00:03:33,947 --> 00:03:38,184 Similarly to when watching a sporting games event, 72 00:03:38,218 --> 00:03:40,453 when you see the clock on the screen, stop 73 00:03:40,453 --> 00:03:42,722 when the referee blows a whistle, for instance. 74 00:03:42,722 --> 00:03:45,158 The same thing can happen with our t clock. 75 00:03:45,158 --> 00:03:47,293 And the reason that is, is because the launch team 76 00:03:47,293 --> 00:03:51,264 has inserted specific built in hold throughout the countdown. 77 00:03:51,397 --> 00:03:52,265 Now, these built in 78 00:03:52,265 --> 00:03:56,536 holds are pauses that the team has intentionally inserted 79 00:03:56,536 --> 00:03:59,939 in the countdown to provide them with some extra wiggle room 80 00:03:59,939 --> 00:04:04,510 or some cushion to to again, just be able to go 81 00:04:04,510 --> 00:04:07,981 through all of their operations continue. 82 00:04:07,981 --> 00:04:11,651 Making sure that everything is on track to be able 83 00:04:11,651 --> 00:04:14,654 to meet the opening of that launch window. 84 00:04:14,787 --> 00:04:18,958 And also, if they run into any issues throughout the countdown. 85 00:04:18,992 --> 00:04:21,928 This also provides them that extra time to be able 86 00:04:21,928 --> 00:04:24,130 to resolve them and still make again 87 00:04:24,130 --> 00:04:26,366 that opening of that launch window. 88 00:04:26,366 --> 00:04:28,301 Now let's talk about today's launch window. 89 00:04:28,301 --> 00:04:30,570 The launch window is two hours long. 90 00:04:30,570 --> 00:04:33,573 It opens at 6:24 p.m. 91 00:04:33,573 --> 00:04:36,476 eastern time this evening. 92 00:04:36,476 --> 00:04:37,510 Now, what does that mean? 93 00:04:37,510 --> 00:04:39,045 A two hour launch window. 94 00:04:39,045 --> 00:04:40,647 It means that the launch team 95 00:04:40,647 --> 00:04:43,216 has two hours in which they can launch. 96 00:04:43,216 --> 00:04:45,618 Launch today's Artemis two mission. 97 00:04:45,618 --> 00:04:49,389 So if we don't go right at 6:24 p.m., that is okay. 98 00:04:53,526 --> 00:04:53,960 So again, 99 00:04:53,960 --> 00:04:56,963 to quickly recap, our launch director gave the go 100 00:04:56,963 --> 00:05:00,266 to start our cryogenic propellant loading operations. 101 00:05:00,466 --> 00:05:02,035 That means right now, the Artemis 102 00:05:02,035 --> 00:05:05,171 launch team is currently in what is called the chilled down 103 00:05:05,171 --> 00:05:08,441 phase for the SLS core stage rocket. 104 00:05:08,908 --> 00:05:12,412 Now, the core stage is the first stage of the SLS rocket. 105 00:05:12,578 --> 00:05:16,082 It is the orange section in between the two solid 106 00:05:16,082 --> 00:05:19,085 rocket boosters that you see there on your screen. 107 00:05:19,986 --> 00:05:23,089 Now Chill down basically refers that we are going to be 108 00:05:23,523 --> 00:05:26,993 cooling down all the systems and lines that are 109 00:05:27,193 --> 00:05:31,130 that will be feeding this propellant inside the rocket. 110 00:05:31,597 --> 00:05:34,334 The reason we chilled down these lines is because we are 111 00:05:34,334 --> 00:05:37,403 feeding cryogenic or again, super cold 112 00:05:37,403 --> 00:05:40,440 propellant on board liquid hydrogen. 113 00:05:40,440 --> 00:05:46,913 To remain in a liquid state needs to be -423°F. 114 00:05:47,513 --> 00:05:52,352 On the oxygen side, it's -297°F. 115 00:05:52,585 --> 00:05:56,422 So very, very cold temperatures. 116 00:05:57,423 --> 00:05:58,524 Because of this, 117 00:05:58,524 --> 00:06:01,160 we then cooled down these lines so that they don't 118 00:06:01,160 --> 00:06:01,828 so that we aren't 119 00:06:01,828 --> 00:06:04,063 shocking the system we are in, causing 120 00:06:04,063 --> 00:06:06,432 any potential damage to the hardware. 121 00:06:06,432 --> 00:06:10,103 And they're able to receive these super cold propellants 122 00:06:10,303 --> 00:06:13,306 smoothly and without issues. 123 00:06:13,873 --> 00:06:16,275 So again, we are currently in chill down 124 00:06:16,275 --> 00:06:20,813 for both the core stage liquid hydrogen and liquid oxygen tanks 125 00:06:22,248 --> 00:06:23,483 following chill down. 126 00:06:23,483 --> 00:06:26,486 The teams will then start what is called slow fill. 127 00:06:26,719 --> 00:06:30,990 This will officially mark the start of propellant loading. 128 00:06:31,190 --> 00:06:32,291 That means that we will 129 00:06:32,291 --> 00:06:35,328 actually start loading that liquid propellant on board 130 00:06:35,328 --> 00:06:36,396 the rocket. 131 00:06:36,396 --> 00:06:39,732 Now, as the name suggests, slow fill basically refers 132 00:06:39,732 --> 00:06:42,702 to slowly start to load that propellant. 133 00:06:43,669 --> 00:06:45,638 The reasons they do this is because the teams are 134 00:06:45,638 --> 00:06:47,640 wanting to closely monitor 135 00:06:49,275 --> 00:06:52,512 that there isn't any leaks or any issues. 136 00:06:52,512 --> 00:06:55,581 When we are starting our propellant loading operations. 137 00:06:59,318 --> 00:07:00,353 Now, following slow 138 00:07:00,353 --> 00:07:04,190 fill, teams will then transition into what is called fast fill. 139 00:07:04,924 --> 00:07:07,927 Similarly to how slow fill refers to going slowly, 140 00:07:08,060 --> 00:07:11,063 fast Bill means we're going to go at a much faster rate. 141 00:07:11,097 --> 00:07:14,200 This will be the bulk of our propellant loading operations, 142 00:07:14,200 --> 00:07:14,600 where teams 143 00:07:14,600 --> 00:07:17,603 are going to be in fast fill for the majority of the time. 144 00:07:18,371 --> 00:07:21,374 Now, following fast fill, we will then transition into 145 00:07:21,407 --> 00:07:22,475 topping. 146 00:07:22,475 --> 00:07:24,911 Topping just means that we are going to 147 00:07:24,911 --> 00:07:27,814 finish that last little bit that is needed to get us 148 00:07:27,814 --> 00:07:31,150 to 100% level in those tanks. 149 00:07:32,185 --> 00:07:35,154 Now, because these are our gases, 150 00:07:35,154 --> 00:07:37,390 these are liquid gases. 151 00:07:37,390 --> 00:07:40,793 As the temperatures start warming up, those gases 152 00:07:40,793 --> 00:07:42,728 will, that liquid oxygen and liquid 153 00:07:42,728 --> 00:07:45,665 hydrogen will start venting off into a gas. 154 00:07:45,665 --> 00:07:48,401 Because of this, following topping teams will then 155 00:07:48,401 --> 00:07:51,404 transition into what is called replenish mode. 156 00:07:51,971 --> 00:07:54,073 Replenish means just that. 157 00:07:54,073 --> 00:07:57,310 They're just going to constantly be replenishing these tanks 158 00:07:57,310 --> 00:08:01,147 so that we make sure we're at 100% level and we are 159 00:08:01,147 --> 00:08:05,351 at that flight ready level for when we enter terminal count. 160 00:08:08,821 --> 00:08:10,356 Now, I'll be reporting out 161 00:08:10,356 --> 00:08:13,426 as each of these operations and milestones are underway. 162 00:08:14,293 --> 00:08:16,662 Our Artemis launch team, they're currently communicating 163 00:08:16,662 --> 00:08:18,264 with each other through these separate 164 00:08:18,264 --> 00:08:21,267 communications channels that I'll be tuning into. 165 00:08:22,301 --> 00:08:25,638 And I'll make sure to relay as that information gets underway. 166 00:08:25,638 --> 00:08:28,641 And they report those milestones and call outs out. 167 00:08:31,644 --> 00:08:34,580 Now, while we wait for slow fill to get underway, 168 00:08:34,580 --> 00:08:37,617 let's do a little bit of a recap of the entire countdown. 169 00:08:37,650 --> 00:08:41,420 Again, we said we started on Monday at 4:44 p.m. 170 00:08:42,522 --> 00:08:43,956 eastern time. 171 00:08:43,956 --> 00:08:47,026 So shortly after the countdown started, ticking 172 00:08:47,026 --> 00:08:49,362 down, teams filled the water tank 173 00:08:49,362 --> 00:08:51,030 for the sound suppression system. 174 00:08:51,030 --> 00:08:52,164 Now, this is done to help 175 00:08:52,164 --> 00:08:54,767 protect the rocket and the supporting ground 176 00:08:54,767 --> 00:08:57,503 structure structures that are there at the launch pad 177 00:08:57,503 --> 00:08:58,871 from the extreme heat 178 00:08:58,871 --> 00:09:02,575 and the power that's generated from the rocket's exhaust. 179 00:09:02,708 --> 00:09:05,611 And it also helps suppress the sound that's produced 180 00:09:05,611 --> 00:09:06,445 at liftoff. 181 00:09:07,847 --> 00:09:09,982 Now, the Orion spacecraft, the core stage, 182 00:09:09,982 --> 00:09:12,852 which, again, is that first stage of the SLS rocket 183 00:09:12,852 --> 00:09:16,389 and the Interim Cryogenic Propulsion Stage, or the upper 184 00:09:16,389 --> 00:09:20,526 or second stage of SLES, were also all powered up for launch. 185 00:09:21,761 --> 00:09:23,863 The Orion and the core stage flight batteries 186 00:09:23,863 --> 00:09:27,366 have been charged, and at 4:14 a.m. 187 00:09:27,366 --> 00:09:29,502 eastern time this morning, team started 188 00:09:29,502 --> 00:09:30,436 what is called the air 189 00:09:30,436 --> 00:09:33,706 two gaseous nitrogen or Jian two changeover. 190 00:09:34,640 --> 00:09:37,944 Now this is a very important milestone to meet our launch 191 00:09:37,944 --> 00:09:39,979 director technical assistant Maddie Forrest. 192 00:09:39,979 --> 00:09:41,914 Dale kind of described it to us. 193 00:09:41,914 --> 00:09:45,484 It's when we're really getting ready to get the party started. 194 00:09:46,852 --> 00:09:49,188 The reason for this is because it basically signals 195 00:09:49,188 --> 00:09:50,923 the team that we are on track 196 00:09:50,923 --> 00:09:54,126 to be go for propellant loading later in the countdown. 197 00:09:54,727 --> 00:09:55,528 And the reason for that 198 00:09:55,528 --> 00:09:58,631 is because the air to gaseous nitrogen change over 199 00:09:58,698 --> 00:10:02,034 basically is helping prevent any potential fire hazards. 200 00:10:02,068 --> 00:10:05,371 It's a creating a clean and nurture environment 201 00:10:05,471 --> 00:10:08,975 inside the vehicle so that then when we are putting 202 00:10:08,975 --> 00:10:12,645 in those hazardous propellant, there aren't any issues. 203 00:10:13,713 --> 00:10:16,782 So that started at 450 4:14 a.m. 204 00:10:16,782 --> 00:10:20,586 this morning, and it was completed at 7:14 a.m. 205 00:10:20,586 --> 00:10:23,589 Eastern time. 206 00:10:25,191 --> 00:10:28,227 Now, as I mentioned earlier, the countdown for Artemis 207 00:10:28,327 --> 00:10:31,430 two does have certain built in holds throughout the count. 208 00:10:31,731 --> 00:10:34,433 We are currently in our first built in holds, 209 00:10:34,433 --> 00:10:37,870 which lasts two hours and 45 minutes total. 210 00:10:38,771 --> 00:10:40,640 Like I said, we're still currently in it 211 00:10:40,640 --> 00:10:42,808 and we do have roughly about 38 minutes 212 00:10:42,808 --> 00:10:45,811 and counting until we exit that first hold. 213 00:10:47,146 --> 00:10:49,415 The other additional built in holds that have been 214 00:10:49,415 --> 00:10:50,616 put in the countdown. 215 00:10:50,616 --> 00:10:54,353 Again, these are pauses that the team has purposely 216 00:10:54,353 --> 00:10:56,689 inserted to make sure that they can 217 00:10:56,689 --> 00:10:59,659 just get some extra cushion time if needed. 218 00:10:59,659 --> 00:11:01,961 That next one happens once we reach 219 00:11:01,961 --> 00:11:04,764 what is called all stages replenish. 220 00:11:04,764 --> 00:11:07,566 Now, all stages replenish just means that now 221 00:11:07,566 --> 00:11:10,302 the entire SLS rocket is fully fueled 222 00:11:10,302 --> 00:11:13,339 and teams are now just constantly replenishing 223 00:11:13,539 --> 00:11:16,842 all the tanks to make sure that it is always at 100% 224 00:11:16,842 --> 00:11:19,912 until we get into the final ten minutes of the countdown. 225 00:11:20,513 --> 00:11:22,515 So when we reach all stages, replenish. 226 00:11:22,515 --> 00:11:24,684 That's when the teams are going to be ready 227 00:11:24,684 --> 00:11:27,586 to send our astronauts to the launch pad. 228 00:11:27,586 --> 00:11:30,456 Because of this, the teams have inserted this extra hold. 229 00:11:30,456 --> 00:11:32,024 It's an hour and ten minutes 230 00:11:32,024 --> 00:11:35,261 that will happen again when we are at all stages. 231 00:11:35,261 --> 00:11:36,796 Replenish. 232 00:11:36,796 --> 00:11:40,032 Following that, we then have just one final hold 233 00:11:40,032 --> 00:11:41,867 in the countdown, and that happens 234 00:11:41,867 --> 00:11:44,637 when we're then getting ready for terminal count. 235 00:11:44,637 --> 00:11:47,440 It'll be a 40 minute hold, and it will happen 236 00:11:47,440 --> 00:11:50,743 roughly again about 40 minutes before we enter. 237 00:11:50,743 --> 00:11:53,112 Then the last ten minutes of the countdown. 238 00:11:58,117 --> 00:11:59,785 So to quickly recap again, 239 00:11:59,785 --> 00:12:02,121 our launch director, Charlie Blackwell Thompson, 240 00:12:02,121 --> 00:12:05,124 she gave the go for teams to start propellant loading. 241 00:12:05,157 --> 00:12:08,127 We are currently in chill down for the core stage 242 00:12:08,127 --> 00:12:11,063 liquid hydrogen and liquid oxygen. 243 00:12:11,063 --> 00:12:12,998 Up next will be slow fill 244 00:12:12,998 --> 00:12:16,001 when we start loading that liquid propellant. 245 00:12:16,368 --> 00:12:19,371 And I will report out when that is underway. 246 00:20:26,525 --> 00:20:27,259 Welcome back. 247 00:20:27,259 --> 00:20:28,827 This is Artemis launch control. 248 00:20:28,827 --> 00:20:32,698 For those of you that are just now joining us, this is our NASA 249 00:20:32,698 --> 00:20:36,201 live coverage for the Artemis two mission. 250 00:20:36,401 --> 00:20:39,538 We are starting our propellant loading operations, 251 00:20:39,538 --> 00:20:41,974 and we'll be giving you 24 over seven live coverage, 252 00:20:41,974 --> 00:20:43,942 starting with our tanking operations 253 00:20:43,942 --> 00:20:46,945 and continuing throughout the rest of this mission. 254 00:20:47,412 --> 00:20:48,981 We're here in Firing Room one. 255 00:20:48,981 --> 00:20:50,315 You can see there on your screen. 256 00:20:50,315 --> 00:20:54,019 We have our Artemis launch team getting ready to launch 257 00:20:54,019 --> 00:20:58,323 the SLES or Space Launch System rocket and Orion spacecraft 258 00:20:58,390 --> 00:21:01,793 for the agency's Artemis two mission later this evening. 259 00:21:02,294 --> 00:21:05,530 Now, that launch window opens at 6:24 p.m. 260 00:21:05,530 --> 00:21:07,132 eastern time today. 261 00:21:07,132 --> 00:21:09,901 The team do have a two hour launch window, 262 00:21:09,901 --> 00:21:13,071 which means that if we don't launch right at 6:24 p.m., 263 00:21:13,238 --> 00:21:17,476 they do have an additional two hours in which they can launch. 264 00:21:20,178 --> 00:21:23,081 Now, as you can see, it is a gorgeous, bright and sunny 265 00:21:23,081 --> 00:21:26,351 day here on the Space Coast in Florida. 266 00:21:27,686 --> 00:21:29,921 Currently, you don't see any clouds inside, 267 00:21:29,921 --> 00:21:33,759 but I can confirm there are some pretty white puffy clouds. 268 00:21:33,792 --> 00:21:35,294 They don't seem to be a threat. 269 00:21:35,294 --> 00:21:37,896 In fact, our launch weather officer. 270 00:21:37,896 --> 00:21:40,432 He told the launch team that they have favorable 271 00:21:40,432 --> 00:21:43,368 and acceptable weather, not only for tanking, 272 00:21:43,368 --> 00:21:46,371 but also throughout today's countdown. 273 00:21:46,438 --> 00:21:49,975 Now, the teams will continuing to monitor the weather forecast 274 00:21:50,075 --> 00:21:53,178 as they as we get closer to today's launch window. 275 00:21:54,379 --> 00:21:58,083 We're currently predicting 80% favorable weather conditions 276 00:21:58,083 --> 00:22:01,086 for that two hour launch window. 277 00:22:04,790 --> 00:22:08,560 We are currently ten hours and 17 minutes and counting 278 00:22:08,560 --> 00:22:11,563 from the opening of the Artemis two mission. 279 00:22:13,298 --> 00:22:15,600 We are currently in what is called our chill 280 00:22:15,600 --> 00:22:18,370 down operations for the core stage, 281 00:22:18,370 --> 00:22:21,239 liquid oxygen and liquid hydrogen tank. 282 00:22:22,407 --> 00:22:25,410 Now, Chill down refers to getting all the systems 283 00:22:25,510 --> 00:22:30,082 and lines very cold and ready to receive these super cold 284 00:22:30,082 --> 00:22:34,219 cryogenic propellants prior to starting our actual 285 00:22:34,219 --> 00:22:37,222 tanking loading operations. 286 00:22:41,526 --> 00:22:42,227 Now let's break 287 00:22:42,227 --> 00:22:45,230 down the SLS rocket. 288 00:22:45,364 --> 00:22:46,665 We start with the core stage. 289 00:22:46,665 --> 00:22:49,668 That is the first stage of the rocket. 290 00:22:49,835 --> 00:22:52,637 Then on top of the core stage, you have what is the upper stage 291 00:22:52,637 --> 00:22:55,640 or that interim cryogenic propulsion stage. 292 00:22:57,142 --> 00:22:58,443 So in total for SLS 293 00:22:58,443 --> 00:23:01,913 there are two stages, but there are four tanks in total. 294 00:23:01,947 --> 00:23:04,182 You have our liquid hydrogen tank on both 295 00:23:04,182 --> 00:23:05,917 the core stage and the upper stage, 296 00:23:05,917 --> 00:23:07,586 and a liquid oxygen in both. 297 00:23:07,586 --> 00:23:11,123 So four tanks total both liquid hydrogen and liquid 298 00:23:11,123 --> 00:23:14,126 oxygen. 299 00:23:15,427 --> 00:23:17,062 The core stage holds roughly 300 00:23:17,062 --> 00:23:20,932 733,000 gallons. 301 00:23:22,033 --> 00:23:25,036 The upper stage, meanwhile, holds 24,000, 302 00:23:25,437 --> 00:23:27,372 so much smaller in comparison. 303 00:23:27,372 --> 00:23:28,440 In fact, 304 00:23:28,440 --> 00:23:31,309 the core stage is one of the tallest stages 305 00:23:31,309 --> 00:23:32,711 first stages of a rocket 306 00:23:32,711 --> 00:23:35,680 that NASA has ever used for its missions. 307 00:23:35,981 --> 00:23:38,950 It's roughly 212ft tall. 308 00:23:44,322 --> 00:23:45,757 Now fully fueled, 309 00:23:45,757 --> 00:23:48,794 SLS weighs approximately 5.74 310 00:23:48,794 --> 00:23:51,797 million pounds 311 00:23:51,963 --> 00:23:54,433 before fueling, which is where we're currently at. 312 00:23:54,433 --> 00:23:57,436 It is 3.5 million pounds. 313 00:23:57,769 --> 00:24:01,940 So that means we're adding roughly 2.25 314 00:24:01,940 --> 00:24:05,977 million pounds of propellant onboard this rocket. 315 00:24:06,745 --> 00:24:09,748 That's quite a lot. 316 00:24:11,249 --> 00:24:14,085 Again, to quickly recap, we are in chill down. 317 00:24:14,085 --> 00:24:16,054 The next step will be when we enter. 318 00:24:16,054 --> 00:24:17,756 Slow fill. 319 00:24:17,756 --> 00:24:20,459 Slow fill refers to when we actually start those 320 00:24:20,459 --> 00:24:22,494 propellant loading operations. 321 00:24:22,494 --> 00:24:25,530 Teams will start to slowly load those cryogenic 322 00:24:25,797 --> 00:24:28,800 propellants on board the core stage. 323 00:24:29,568 --> 00:24:31,303 And then we will start transitioning 324 00:24:31,303 --> 00:24:32,938 where we going a little bit quicker. 325 00:24:32,938 --> 00:24:34,372 We call that fast fill. 326 00:24:34,372 --> 00:24:38,477 So we will start flowing that propellant at a much faster 327 00:24:38,477 --> 00:24:41,480 rate. 328 00:24:44,382 --> 00:24:45,183 I'll continue 329 00:24:45,183 --> 00:24:48,186 reporting out as these milestones are underway. 330 00:24:53,024 --> 00:24:54,960 Now on the spacecraft side, teams 331 00:24:54,960 --> 00:24:58,129 also have started what is called the Orion Cold Soak. 332 00:24:58,630 --> 00:24:59,898 Now this basically refers 333 00:24:59,898 --> 00:25:03,201 to making everything super cold on the spacecraft. 334 00:25:03,335 --> 00:25:05,871 This is done in order to protect the avionics. 335 00:25:05,871 --> 00:25:08,073 So we're not chilling the crew module, 336 00:25:08,073 --> 00:25:08,840 but we're making 337 00:25:08,840 --> 00:25:12,544 the thermal control system cold so that it can withstand 338 00:25:12,744 --> 00:25:14,212 all of the different temperatures 339 00:25:14,212 --> 00:25:16,948 that it's going to be seeing throughout today's countdown. 340 00:25:18,283 --> 00:25:20,418 That started quickly after we gave the load 341 00:25:20,418 --> 00:25:23,421 go for cryo load. 342 00:25:26,458 --> 00:25:29,461 Now Artemis two is a test flight. 343 00:25:29,561 --> 00:25:32,330 We're going to send astronauts Reed 344 00:25:32,330 --> 00:25:35,467 Wiseman, Victor Glover, Christina Cook 345 00:25:36,034 --> 00:25:39,437 and Jeremy Hansen on a ten day mission around the moon. 346 00:25:40,505 --> 00:25:43,141 This is the first crewed test flight 347 00:25:43,141 --> 00:25:46,144 for NASA's Artemis missions. 348 00:25:47,279 --> 00:25:48,947 And we're going to be testing the life 349 00:25:48,947 --> 00:25:51,950 support systems that are onboard Orion. 350 00:25:56,688 --> 00:25:59,024 As well as conducting other operations 351 00:25:59,024 --> 00:26:01,259 and demonstrations throughout the mission, 352 00:26:01,259 --> 00:26:05,363 so that we can pave the way for our future Artemis missions. 353 00:26:05,363 --> 00:26:08,366 When we send our astronauts to the moon. 354 00:26:39,264 --> 00:26:40,432 In fact, 355 00:26:40,432 --> 00:26:43,835 one of the new operations or the new demonstrations 356 00:26:43,835 --> 00:26:47,305 at the hour our astronauts will get to perform 357 00:26:48,607 --> 00:26:50,442 throughout this mission is what is called 358 00:26:50,442 --> 00:26:53,411 the Proximity Operations demonstration. 359 00:26:54,179 --> 00:26:55,347 So after launch, 360 00:26:56,848 --> 00:26:57,782 after the upper 361 00:26:57,782 --> 00:27:01,386 stage, this will be roughly about 50 minutes after launch. 362 00:27:01,419 --> 00:27:04,723 The upper stage is going to fire its RL ten engine. 363 00:27:04,823 --> 00:27:07,826 It has one RL ten engine at the bottom. 364 00:27:08,360 --> 00:27:11,162 It will fire its engine so that it starts 365 00:27:11,162 --> 00:27:14,165 a 32nd perigee raise maneuver burn. 366 00:27:14,299 --> 00:27:16,234 This is going to put the spacecraft 367 00:27:16,234 --> 00:27:18,470 or the Orion spacecraft, this low point 368 00:27:18,470 --> 00:27:21,473 on its elliptical orbit as it's going around Earth. 369 00:27:22,474 --> 00:27:23,875 About an hour later, 370 00:27:23,875 --> 00:27:24,676 the upper stage 371 00:27:24,676 --> 00:27:28,046 will fire its engine again to begin a 20 minute apogee 372 00:27:28,046 --> 00:27:30,281 raise burn, in which point we're going to be 373 00:27:30,281 --> 00:27:32,584 sending the spacecraft to its highest point 374 00:27:32,584 --> 00:27:35,053 in its elliptical orbit around the Earth. 375 00:27:35,053 --> 00:27:38,056 Earth. 376 00:27:38,356 --> 00:27:41,326 Now roughly three hours and 25 minutes into the mission. 377 00:27:41,326 --> 00:27:43,962 So this is about, again, 3.5 hours after launch. 378 00:27:43,962 --> 00:27:47,465 Orion will separate from the upper stage at this point. 379 00:27:47,899 --> 00:27:50,235 This is when our astronauts, our crew on board, 380 00:27:50,235 --> 00:27:52,537 they're going to begin manually testing 381 00:27:52,537 --> 00:27:55,473 Orion's can controls and steering thrusters 382 00:27:55,473 --> 00:27:57,175 so that they can start what is called 383 00:27:57,175 --> 00:27:59,844 this proximity operations demonstration. 384 00:27:59,844 --> 00:28:00,512 This is basically 385 00:28:00,512 --> 00:28:03,948 a series of maneuvers that are going to have the 386 00:28:04,482 --> 00:28:08,520 Artemis two crew flying Orion, and practice approaching 387 00:28:08,520 --> 00:28:12,824 the upper stage and backing away for roughly 70 minutes. 388 00:28:13,792 --> 00:28:16,194 Now, the reason we're doing this test is so that, again, 389 00:28:16,194 --> 00:28:19,864 we can practice this for when we go and have Artemis three, 390 00:28:20,098 --> 00:28:22,967 and we actually have Orion practicing docking 391 00:28:22,967 --> 00:28:25,970 with our lunar landing systems. 392 00:28:28,807 --> 00:28:32,077 Now, it is important to note that Orion won't actually dock 393 00:28:32,077 --> 00:28:34,412 with the upper stage for Artemis two. 394 00:28:34,412 --> 00:28:37,115 Instead, it will get close and then drift, 395 00:28:37,115 --> 00:28:40,118 and then go back and separate and then get close again. 396 00:28:40,685 --> 00:28:43,321 We really just want to practice those proximity 397 00:28:43,321 --> 00:28:46,324 operations to confirm we can do it. 398 00:28:46,324 --> 00:28:46,791 We can. 399 00:28:46,791 --> 00:28:50,328 The spacecraft can get aligned with where it needs to be. 400 00:28:51,730 --> 00:28:55,266 And then following that, Orion will then fire its European 401 00:28:55,266 --> 00:28:58,136 service module engine for about two minutes 402 00:28:58,136 --> 00:29:00,939 so that it helps increase that separation distance 403 00:29:00,939 --> 00:29:02,340 from the upper stage. 404 00:29:04,876 --> 00:29:05,710 At this point, 405 00:29:05,710 --> 00:29:08,713 the upper stage will fire its thrusters just one 406 00:29:08,713 --> 00:29:11,716 final time so that it begins its disposal burn. 407 00:29:12,083 --> 00:29:16,121 Following that burn completion, that's when the small breadbox 408 00:29:16,121 --> 00:29:17,789 size or those shoebox size 409 00:29:17,789 --> 00:29:19,524 secondary payloads that are currently 410 00:29:19,524 --> 00:29:21,860 inside the Orion stage adapter. 411 00:29:21,860 --> 00:29:24,229 If you see on your screen there up at the top, 412 00:29:24,229 --> 00:29:25,897 we have our Orion spacecraft. 413 00:29:25,897 --> 00:29:30,168 And then underneath there will be the Orion stage adapter 414 00:29:30,301 --> 00:29:34,005 that is in between the upper stage and the spacecraft. 415 00:29:34,072 --> 00:29:37,475 It is where we currently house those secondary payloads. 416 00:29:37,509 --> 00:29:39,511 These are what are called a bunch of CubeSats. 417 00:29:39,511 --> 00:29:41,279 These are some science 418 00:29:41,279 --> 00:29:43,481 experiments that are being housed there. 419 00:29:43,481 --> 00:29:46,384 And then they will separate with the upper stage. 420 00:29:46,384 --> 00:29:49,554 And go to their respective destinations to conduct 421 00:29:49,721 --> 00:29:51,189 their scientific data. 422 00:29:52,390 --> 00:29:53,792 Now, again, following on, once 423 00:29:53,792 --> 00:29:55,493 those are ejected from the Orion stage 424 00:29:55,493 --> 00:29:58,830 adapter, that's approximately 5.5 hours into the mission. 425 00:29:59,531 --> 00:30:02,600 The upper stage will then send, will then 426 00:30:02,600 --> 00:30:03,902 go back on its trajectory 427 00:30:03,902 --> 00:30:04,903 and will reenter 428 00:30:04,903 --> 00:30:08,506 over the Pacific Ocean about 26 hours after launch. 429 00:30:09,641 --> 00:30:11,810 Now, during this time, the Orion will remain 430 00:30:11,810 --> 00:30:14,813 in a high Earth orbit for about 25 hours 431 00:30:15,013 --> 00:30:18,683 before it executes its trans lunar injection burn. 432 00:30:18,850 --> 00:30:20,819 Now, this is the burn that is needed 433 00:30:20,819 --> 00:30:24,022 so that it can head on and send our four astronauts 434 00:30:24,355 --> 00:30:27,358 around the moon and back. 435 00:30:28,693 --> 00:30:31,262 So that's just a little quick recap 436 00:30:31,262 --> 00:30:35,466 of what our next day looks like within the next 24 hours. 437 00:30:35,667 --> 00:30:38,803 But let's take you back to where we currently are at. 438 00:30:38,803 --> 00:30:39,137 Again. 439 00:30:39,137 --> 00:30:42,540 We are ten hours and eight minutes and counting 440 00:30:42,540 --> 00:30:45,109 from the opening of today's launch window. 441 00:30:45,109 --> 00:30:48,346 That launch window opens at 6:24 p.m. 442 00:30:48,346 --> 00:30:49,247 Eastern time. 443 00:30:50,281 --> 00:30:52,917 We are currently in what is called chill down 444 00:30:52,917 --> 00:30:56,654 for the core stage liquid hydrogen and liquid oxygen. 445 00:30:57,088 --> 00:31:00,525 Next up will be slow fill when we start loading 446 00:31:00,525 --> 00:31:03,528 that liquid propellant, and I'll report out once 447 00:31:03,528 --> 00:31:06,531 that is underway. 448 00:49:27,264 --> 00:49:28,098 Welcome back. 449 00:49:28,098 --> 00:49:29,766 This is Artemis launch control. 450 00:49:29,766 --> 00:49:33,503 We are currently nine hours and 49 minutes and counting 451 00:49:33,503 --> 00:49:36,940 until the opening of today's launch window for the Artemis 452 00:49:37,007 --> 00:49:38,375 two mission. 453 00:49:38,375 --> 00:49:41,445 Now, that launch window opens at 6:24 p.m. 454 00:49:41,445 --> 00:49:43,347 eastern time this evening. 455 00:49:43,347 --> 00:49:46,149 Teams do have a two hour launch window, 456 00:49:46,149 --> 00:49:50,320 which means that if we don't open right at the start at 624, 457 00:49:50,320 --> 00:49:50,787 they do 458 00:49:50,787 --> 00:49:53,991 have an additional two hours in which they can try to launch 459 00:49:54,725 --> 00:49:57,294 the Artemis launch team, which we see here on our screen. 460 00:49:57,294 --> 00:50:00,697 They are getting ready to they are sitting on console, 461 00:50:00,697 --> 00:50:03,800 getting ready to launch our Artemis two moon rocket. 462 00:50:23,787 --> 00:50:24,121 Now, the 463 00:50:24,121 --> 00:50:27,124 launch team just reported that we are 464 00:50:27,324 --> 00:50:31,194 now starting our propellant loading operations 465 00:50:31,194 --> 00:50:34,631 for the SLES or the Space Launch System rocket. 466 00:50:35,132 --> 00:50:38,935 We are currently in slow fill for both the core stage 467 00:50:38,935 --> 00:50:42,572 liquid hydrogen and liquid oxygen tanks. 468 00:50:43,006 --> 00:50:47,144 This means that propellant loading is officially underway. 469 00:50:47,244 --> 00:50:50,480 We are now starting to load those super cold, 470 00:50:50,480 --> 00:50:55,052 these cryogenic temperatures onto the SLS rocket. 471 00:50:56,920 --> 00:50:58,622 Now we're going to start from the bottom 472 00:50:58,622 --> 00:51:01,625 and make our way slowly up to the top. 473 00:51:01,892 --> 00:51:03,460 So we'll first start with loading 474 00:51:03,460 --> 00:51:04,928 the first stage of the rocket. 475 00:51:04,928 --> 00:51:06,830 That's what we call the core stage. 476 00:51:06,830 --> 00:51:08,331 It is the orange section 477 00:51:08,331 --> 00:51:10,434 of the rocket that you see there on your screen 478 00:51:10,434 --> 00:51:13,904 that sits between the two solid rocket boosters. 479 00:51:15,672 --> 00:51:18,975 Now we are currently again in slow fill for both liquid 480 00:51:18,975 --> 00:51:22,179 hydrogen and liquid oxygen on that core stage. 481 00:51:22,512 --> 00:51:25,982 Slow fill refers to, as the name suggests, 482 00:51:26,316 --> 00:51:29,319 to slowly start loading that propellant. 483 00:51:29,619 --> 00:51:33,090 Now we do this because these tanks are really large. 484 00:51:33,123 --> 00:51:34,758 In fact, the core stage 485 00:51:34,758 --> 00:51:38,295 is one of the tallest first stages of a rocket. 486 00:51:38,528 --> 00:51:41,731 So that means these tanks are also very, very large. 487 00:51:41,832 --> 00:51:45,702 In fact, the liquid hydrogen tank on the core stage can 488 00:51:45,702 --> 00:51:49,940 hold roughly 537,000 gallons. 489 00:51:51,007 --> 00:51:53,310 And then on the liquid oxygen side, 490 00:51:53,310 --> 00:51:57,013 it holds roughly 196,000 gallons. 491 00:51:57,514 --> 00:51:58,482 So because of this, 492 00:51:58,482 --> 00:52:01,651 because these tanks are so large, teams will start 493 00:52:01,651 --> 00:52:04,921 slowly loading this propellant so that they can monitor 494 00:52:05,021 --> 00:52:09,726 how the tanks, how the hardware is receiving these super cold 495 00:52:10,360 --> 00:52:13,363 cryogenic propellants. 496 00:52:16,833 --> 00:52:19,436 Once it looks like everything is under way 497 00:52:19,436 --> 00:52:21,004 and there are no issues, they will 498 00:52:21,004 --> 00:52:23,573 then transition into what is called fast fill, 499 00:52:23,573 --> 00:52:24,274 which is where 500 00:52:24,274 --> 00:52:27,410 we'll stay for the majority of our tanking operations. 501 00:52:28,078 --> 00:52:31,314 Fast fill means we'll now start loading the rocket 502 00:52:31,414 --> 00:52:34,417 at a much faster rate. 503 00:52:38,989 --> 00:52:40,657 Now, before the rocket is fueled, 504 00:52:40,657 --> 00:52:44,427 SLES weighs approximately 3.5 million pounds, 505 00:52:44,661 --> 00:52:49,332 but fully fueled its 5.74 million pounds. 506 00:52:49,566 --> 00:52:52,536 And we are starting to fuel that rocket. 507 00:52:52,536 --> 00:52:56,039 So it is going to start getting heavier and heavier. 508 00:52:57,507 --> 00:52:59,342 Now, we mentioned how the core stage 509 00:52:59,342 --> 00:53:02,546 that is the largest segment of the SLS rocket. 510 00:53:02,546 --> 00:53:05,649 In fact, it's one of the tallest first stages of a rocket 511 00:53:05,649 --> 00:53:08,652 that NASA has ever used. 512 00:53:11,254 --> 00:53:14,257 It's roughly 212ft tall. 513 00:53:14,291 --> 00:53:16,359 Now, on top of it sits the upper stage 514 00:53:16,359 --> 00:53:18,862 or the interim Cryogenic Propulsion stage. 515 00:53:18,862 --> 00:53:21,898 Now that's roughly 45ft tall in comparison. 516 00:53:22,532 --> 00:53:24,201 And then on top of that, you have 517 00:53:24,201 --> 00:53:26,503 what is called the Orion Stage adapter. 518 00:53:26,503 --> 00:53:30,440 It is actually the smallest part of the SLS rocket, 519 00:53:30,440 --> 00:53:32,943 and it is what holds our cubesat. 520 00:53:32,943 --> 00:53:36,179 These are these shoe box sized payloads 521 00:53:37,047 --> 00:53:40,850 are the scientific payloads that will be sent off into space 522 00:53:40,850 --> 00:53:43,954 following the separation of the upper stage 523 00:53:43,954 --> 00:53:46,957 from the Orion spacecraft. 524 00:53:47,157 --> 00:53:49,459 Now, it is the smallest part of the rocket at 525 00:53:49,459 --> 00:53:51,962 only roughly five feet tall. 526 00:53:57,000 --> 00:53:58,335 And then, of course, on top 527 00:53:58,335 --> 00:54:01,605 of the Orion stage adapter sits our Orion spacecraft. 528 00:54:01,738 --> 00:54:03,139 You can see there on your screen 529 00:54:03,139 --> 00:54:06,042 the Orion spacecraft that's on top. 530 00:54:06,042 --> 00:54:08,712 And then right there where we have our Artemis logo. 531 00:54:08,712 --> 00:54:11,214 That is what is actually called the Crew Access Arm. 532 00:54:11,214 --> 00:54:13,483 It is part of the mobile launcher 533 00:54:13,483 --> 00:54:15,819 that is the gray L-shaped structure 534 00:54:15,819 --> 00:54:19,589 that is connected to the SLS and Orion spacecraft. 535 00:54:19,589 --> 00:54:20,657 The rocket. 536 00:54:20,657 --> 00:54:21,558 Now the crew access 537 00:54:21,558 --> 00:54:25,695 arm is very important as again, that name suggests, 538 00:54:25,695 --> 00:54:29,666 it is the access point for our astronauts or really any 539 00:54:29,666 --> 00:54:32,902 personnel to be able to access the spacecraft. 540 00:54:33,970 --> 00:54:37,774 So that is where in fact our astronauts Reed 541 00:54:37,774 --> 00:54:40,477 Wiseman, Victor Glover, Christina Cook 542 00:54:40,477 --> 00:54:43,847 and Jeremy Hansen, they'll be walking through there 543 00:54:43,880 --> 00:54:47,851 later on today when they are ready to board 544 00:54:48,151 --> 00:54:51,788 their spacecraft for their mission around the moon. 545 00:54:57,360 --> 00:55:00,430 So to quickly recap, we are now in slow fill 546 00:55:00,430 --> 00:55:04,000 for both liquid oxygen and liquid hydrogen 547 00:55:05,402 --> 00:55:06,536 on the core stage. 548 00:55:06,536 --> 00:55:09,873 That is again the first stage of the SLS rocket. 549 00:55:11,341 --> 00:55:14,344 Following that, we will transition into fast fill 550 00:55:15,512 --> 00:55:18,515 and I'll report out when that is officially underway. 551 00:55:23,520 --> 00:55:26,523 Now while we wait to get into Fast fill, 552 00:55:26,690 --> 00:55:27,457 these are currently 553 00:55:27,457 --> 00:55:31,294 not monitoring any any big issues in the countdown. 554 00:55:31,294 --> 00:55:32,228 It's actually been 555 00:55:32,228 --> 00:55:35,265 things have been going really smoothly, fairly well. 556 00:55:35,365 --> 00:55:38,468 We are definitely hoping for things to continue that way. 557 00:55:45,775 --> 00:55:49,379 But let's talk a little bit about what how everything 558 00:55:49,379 --> 00:55:52,382 that the teams had to do to get us to this point. 559 00:56:00,223 --> 00:56:01,124 So teams first 560 00:56:01,124 --> 00:56:04,160 rolled the SLS rocket and Orion spacecraft 561 00:56:04,160 --> 00:56:07,497 to the launch pad for the first time on January 17th. 562 00:56:11,501 --> 00:56:11,868 Then on 563 00:56:11,868 --> 00:56:15,472 February 2nd, teams performed a wet dress rehearsal. 564 00:56:15,939 --> 00:56:17,874 Now, this was a rehearsal to practice 565 00:56:17,874 --> 00:56:20,377 loading the propellants on board the rocket, 566 00:56:20,377 --> 00:56:24,447 getting into terminal count but not actually launching. 567 00:56:24,481 --> 00:56:27,317 So it was like a practice test before launch. 568 00:56:27,317 --> 00:56:30,320 During that first wet dress rehearsal in February, 569 00:56:31,254 --> 00:56:34,257 we experienced the hydrogen leak, which 570 00:56:35,125 --> 00:56:38,395 following that test teams then decided to perform 571 00:56:38,395 --> 00:56:41,398 another wet dress rehearsal. 572 00:56:42,999 --> 00:56:46,002 They did so on February 19th 573 00:56:46,770 --> 00:56:48,738 and it was very successful. 574 00:56:48,738 --> 00:56:50,840 They didn't really see any hydrogen leak 575 00:56:50,840 --> 00:56:52,008 throughout the entire account, 576 00:56:52,008 --> 00:56:53,910 or any other leaks for that matter, 577 00:56:53,910 --> 00:56:55,178 and they were able to continue 578 00:56:55,178 --> 00:56:58,181 throughout all of the milestones that they had planned. 579 00:56:59,549 --> 00:57:02,519 Now, we did have to roll back on February 25th 580 00:57:02,519 --> 00:57:06,956 due to a helium issue that we saw on the upper stage 581 00:57:07,924 --> 00:57:10,927 of our rocket. 582 00:57:12,262 --> 00:57:13,129 Teams, and noticed 583 00:57:13,129 --> 00:57:16,366 that the flow of helium to the upper stage was interrupted 584 00:57:17,634 --> 00:57:20,570 and on, and that meant that we had to roll back 585 00:57:20,570 --> 00:57:24,407 to the Vehicle Assembly building to help fix to fix that issue. 586 00:57:24,641 --> 00:57:27,744 The only way to access that area was inside 587 00:57:27,744 --> 00:57:30,747 the VAB. 588 00:57:32,348 --> 00:57:35,518 Teams did successfully fix the issue inside the Vehicle 589 00:57:35,518 --> 00:57:37,854 Assembly Building, and we were then ready to roll 590 00:57:37,854 --> 00:57:40,857 back to the launch pad on March 20th. 591 00:57:42,058 --> 00:57:43,893 Since then, the teams 592 00:57:43,893 --> 00:57:46,896 have been getting the rocket then ready for launch, 593 00:57:47,397 --> 00:57:51,401 and we entered our launch countdown on Monday at 4:44 p.m. 594 00:57:51,401 --> 00:57:54,404 Eastern time. 595 00:57:58,308 --> 00:58:01,144 And we are currently nine hours and 41 minutes and counting 596 00:58:01,144 --> 00:58:03,646 from the opening of today's launch window 597 00:58:03,646 --> 00:58:06,282 that opens at 6:24 p.m. 598 00:58:06,282 --> 00:58:09,686 and teams do have a two hour launch window, which means that 599 00:58:09,686 --> 00:58:13,189 they have two hours in which they can launch starting at 624. 600 00:58:14,824 --> 00:58:15,158 We are 601 00:58:15,158 --> 00:58:18,261 currently in slow fill for both the core stage 602 00:58:18,261 --> 00:58:21,264 liquid hydrogen and liquid oxygen tanks. 603 00:58:22,632 --> 00:58:25,401 Next up will be fast fill 604 00:58:25,401 --> 00:58:28,404 and I'll report out when that is underway. 605 01:01:12,402 --> 01:01:13,169 Welcome back. 606 01:01:13,169 --> 01:01:14,737 This is Artemis at launch control. 607 01:01:14,737 --> 01:01:18,274 We are currently nine hours and 37 minutes and counting 608 01:01:18,274 --> 01:01:21,744 from the opening of today's launch window for the Artemis 609 01:01:21,878 --> 01:01:23,046 two mission. 610 01:01:23,046 --> 01:01:25,915 Now, our launch window opens at 6:24 p.m. 611 01:01:25,915 --> 01:01:30,153 eastern Time, and teams do have a two hour launch window, 612 01:01:30,153 --> 01:01:33,356 which means they have two hours in which they can launch the 613 01:01:33,523 --> 01:01:37,360 SLS or Space Launch System rocket and Orion spacecraft 614 01:01:37,393 --> 01:01:40,363 that will send four astronauts around the moon and back. 615 01:01:41,998 --> 01:01:44,333 Now the Artemis launch team, they're currently in firing room 616 01:01:44,333 --> 01:01:45,768 one like you see on your screen. 617 01:01:45,768 --> 01:01:48,905 There they are right now, in the process of loading 618 01:01:48,905 --> 01:01:54,677 cryogenic or super cold liquid propellant onto the SLS rocket. 619 01:01:56,412 --> 01:01:59,816 We are now in our fast fill operations 620 01:01:59,816 --> 01:02:03,252 for the core stage liquid oxygen tank. 621 01:02:03,786 --> 01:02:06,189 This means that we just completed the slow 622 01:02:06,189 --> 01:02:07,824 fill on that tank, 623 01:02:07,824 --> 01:02:10,359 and we have now transitioned into fast fill, 624 01:02:10,359 --> 01:02:13,663 which means we are now starting to load liquid oxygen 625 01:02:13,663 --> 01:02:16,632 at a much faster rate. 626 01:02:17,100 --> 01:02:19,969 Now on the hydrogen side, we are still in slow 627 01:02:19,969 --> 01:02:22,972 fill for liquid hydrogen. 628 01:02:24,373 --> 01:02:26,642 So slow fill for liquid hydrogen. 629 01:02:26,642 --> 01:02:29,746 Fast fill for liquid oxygen on the core stage. 630 01:02:33,316 --> 01:02:35,551 Now just to throw some numbers at you guys. 631 01:02:35,551 --> 01:02:36,786 Again. 632 01:02:36,786 --> 01:02:38,988 The hydrogen tank on the core stage holds 633 01:02:38,988 --> 01:02:42,925 roughly 537,000 gallons. 634 01:02:43,693 --> 01:02:46,028 The liquid oxygen tank, meanwhile, holds roughly 635 01:02:46,028 --> 01:02:49,031 196,000 gallons 636 01:02:50,233 --> 01:02:52,368 on the upper stage. 637 01:02:52,368 --> 01:02:56,339 In total, that's also another 24,000 gallons. 638 01:02:57,240 --> 01:02:59,642 So we have four tanks, 639 01:02:59,642 --> 01:03:01,711 over 750,000 640 01:03:01,711 --> 01:03:06,415 gallons of liquid hydrogen and oxygen that is being fed 641 01:03:06,849 --> 01:03:10,753 all to these engines, to the four Rs 25 engines 642 01:03:10,753 --> 01:03:12,155 at the bottom of the core stage, 643 01:03:12,155 --> 01:03:13,923 and the one RL ten engine 644 01:03:13,923 --> 01:03:16,292 that's at the bottom of the upper stage. 645 01:03:16,292 --> 01:03:18,561 And now why do we need so much propellant? 646 01:03:18,561 --> 01:03:21,464 Because we're sending our astronauts around the moon. 647 01:03:21,464 --> 01:03:23,533 We are going into deep space. 648 01:03:23,533 --> 01:03:27,403 We're going farther than we have since our Apollo missions 649 01:03:27,403 --> 01:03:29,038 in 1972. 650 01:03:31,040 --> 01:03:33,042 Now, again, all of this liquid propellant feeds 651 01:03:33,042 --> 01:03:36,045 the engines that are at the bottom of those stages 652 01:03:37,180 --> 01:03:40,183 for this tremendous 653 01:03:40,349 --> 01:03:43,820 and magnificent rocket that we see out there on the pad. 654 01:03:44,887 --> 01:03:49,325 In fact, in total, SLS is roughly 322ft tall. 655 01:03:49,425 --> 01:03:52,428 It's taller than the Statue of Liberty. 656 01:04:09,045 --> 01:04:12,048 And it will send 657 01:04:12,148 --> 01:04:15,151 our astronauts around the moon. 658 01:04:15,685 --> 01:04:18,120 We have our commander, Reed Wiseman, 659 01:04:18,120 --> 01:04:20,957 pilot Victor Glover, 660 01:04:20,957 --> 01:04:23,492 and mission specialists Christina Cook 661 01:04:23,492 --> 01:04:26,495 and Jeremy Hansen. 662 01:04:26,596 --> 01:04:29,599 You can see them there on your screen 663 01:04:29,732 --> 01:04:30,800 from left to right. 664 01:04:30,800 --> 01:04:33,803 You have Victor, Jeremy, Christina and Reed. 665 01:04:36,038 --> 01:04:39,041 They'll be getting ready to start their day 666 01:04:39,275 --> 01:04:42,278 and get on board their rocket 667 01:04:42,712 --> 01:04:45,715 for their mission around the moon. 668 01:04:50,219 --> 01:04:52,722 Now, Artemis two is a test flight. 669 01:04:52,722 --> 01:04:57,360 This is the first crewed test flight of the Artemis missions. 670 01:04:58,327 --> 01:05:00,263 We're going to evaluate the crewed system 671 01:05:00,263 --> 01:05:03,499 performance in a deep space environment. 672 01:05:04,233 --> 01:05:06,903 We'll perform a flyby around the moon. 673 01:05:06,903 --> 01:05:09,839 We'll practice a proximity operations demonstration 674 01:05:09,839 --> 01:05:12,842 with the upper stage. 675 01:05:20,750 --> 01:05:24,387 All in preparation for our future Artemis missions. 676 01:05:24,820 --> 01:05:28,057 For when we land humans back on the lunar surface. 677 01:05:35,431 --> 01:05:36,132 So to quickly 678 01:05:36,132 --> 01:05:39,101 recap of where we are in today's countdown. 679 01:05:40,169 --> 01:05:42,838 We are currently underway in our fast 680 01:05:42,838 --> 01:05:46,742 fill operations for the liquid oxygen tank on the core stage. 681 01:05:46,842 --> 01:05:49,812 That is the first stage of the SLS rocket, 682 01:05:49,812 --> 01:05:53,382 and we are still in our slow fill operations on the liquid 683 01:05:53,416 --> 01:05:56,419 hydrogen side, on the core stage. 684 01:05:57,887 --> 01:06:00,489 I'll report back once we have started fast fill 685 01:06:00,489 --> 01:06:03,492 for that liquid hydrogen tank. 686 01:15:18,547 --> 01:15:20,482 This is Artemis launch control. 687 01:15:20,482 --> 01:15:23,619 If you are just joining us, we are currently nine hours 688 01:15:23,619 --> 01:15:27,923 and 23 minutes and counting from the opening of today's 689 01:15:27,923 --> 01:15:30,926 launch window for the Artemis two mission. 690 01:15:31,260 --> 01:15:33,695 I'm Antonia Jaramillo and NASA communications, 691 01:15:33,695 --> 01:15:35,797 and I, along with our fellow commentators, 692 01:15:35,797 --> 01:15:36,565 will be taking you 693 01:15:36,565 --> 01:15:38,967 through the rest of today's launch countdown, 694 01:15:38,967 --> 01:15:41,970 as well as the rest of the Artemis two mission. 695 01:15:42,237 --> 01:15:45,941 NASA will be providing 24 over seven live coverage, 696 01:15:45,941 --> 01:15:48,911 starting with our propellant loading operations 697 01:15:48,911 --> 01:15:51,880 that is currently underway and will continue all the way 698 01:15:51,880 --> 01:15:53,949 through our splashdown operations. 699 01:15:57,553 --> 01:15:58,186 Now, the Artemis 700 01:15:58,186 --> 01:15:59,855 launch team, what you just saw there 701 01:15:59,855 --> 01:16:03,725 on your screen, they are in the process of loading cryogenic 702 01:16:03,725 --> 01:16:08,063 or super cold liquid hydrogen and liquid oxygen 703 01:16:08,063 --> 01:16:11,633 onto the SLS or the Space Launch System rocket. 704 01:16:13,201 --> 01:16:15,637 That's a view of the rocket right there at Launch 705 01:16:15,637 --> 01:16:20,442 Pad 39 B, where it will lift off for the agency's Artemis 706 01:16:20,542 --> 01:16:23,545 two mission. 707 01:16:23,579 --> 01:16:26,582 Now, Artemis two is a test flight. 708 01:16:27,282 --> 01:16:30,953 We will be sending our astronauts Commander Reid 709 01:16:30,953 --> 01:16:34,323 Wiseman, pilot Victor Glover, 710 01:16:34,856 --> 01:16:39,161 and mission specialists Christina Cook and Jeremy Hansen 711 01:16:39,428 --> 01:16:42,431 on a ten day mission around the moon and back. 712 01:16:47,069 --> 01:16:48,837 Now we are currently again 713 01:16:48,837 --> 01:16:51,373 underway with our propellant loading operations. 714 01:16:51,373 --> 01:16:55,277 We are in what is called slow fill for the core stage 715 01:16:55,277 --> 01:17:00,015 liquid hydrogen tank and fast fill for the liquid oxygen tank. 716 01:17:01,283 --> 01:17:01,817 Now, slow 717 01:17:01,817 --> 01:17:04,820 fill refers to slowly loading that propellant. 718 01:17:04,920 --> 01:17:07,723 This is done so that teams are monitoring 719 01:17:07,723 --> 01:17:12,027 how the hardware is receiving this super cold, hazardous 720 01:17:12,327 --> 01:17:15,397 propellant that is being onboarded on the rocket. 721 01:17:15,998 --> 01:17:18,100 On the rocket 722 01:17:18,100 --> 01:17:22,270 following slow fill that then transitions into fast fill. When 723 01:17:22,270 --> 01:17:25,273 we start loading that propellant at a much faster rate. 724 01:17:26,441 --> 01:17:29,444 So oxygen is currently already in fast fill, 725 01:17:31,079 --> 01:17:32,914 and liquid hydrogen will soon 726 01:17:32,914 --> 01:17:35,917 follow suit. 727 01:17:37,919 --> 01:17:40,355 Now you can see there on your screen on the rocket 728 01:17:40,355 --> 01:17:41,189 there is a 729 01:17:41,189 --> 01:17:43,759 you can see maybe some little like checker marks 730 01:17:43,759 --> 01:17:46,428 that look to be on the solid rocket boosters. 731 01:17:46,428 --> 01:17:49,464 Those are the two nose cone shaped boosters 732 01:17:49,464 --> 01:17:53,468 in between, on either side of the core stage. 733 01:17:53,802 --> 01:17:55,570 Now, what do those black and white 734 01:17:55,570 --> 01:17:57,739 checkerboards and squares and circles means? 735 01:17:57,739 --> 01:18:00,942 Well, these are our photo Graham metric markings. 736 01:18:01,243 --> 01:18:01,977 They serve. 737 01:18:01,977 --> 01:18:05,180 They serve as imagery references for the engineering photo 738 01:18:05,180 --> 01:18:09,084 and video documentation as, for the post-flight analysis 739 01:18:09,985 --> 01:18:14,356 of how SLES attitude and its position relative to 740 01:18:14,356 --> 01:18:18,193 the, the ground structure during liftoff and ascent performed. 741 01:18:20,328 --> 01:18:22,497 So that they're not just on there randomly. 742 01:18:22,497 --> 01:18:24,800 They do serve a purpose. 743 01:18:24,800 --> 01:18:27,803 And it is, again, for all of that post-flight analysis. 744 01:18:30,972 --> 01:18:33,909 Now let's take it back over to the firing room, 745 01:18:33,909 --> 01:18:36,678 and let's take a look at our launch team. 746 01:18:36,678 --> 01:18:39,381 You can see there you have Charlie Blackwell Thompson. 747 01:18:39,381 --> 01:18:42,451 She's right now walking around on the first upper level road. 748 01:18:42,484 --> 01:18:44,986 She is our Artemis launch director. 749 01:18:44,986 --> 01:18:47,389 She's currently wearing a green blazer. 750 01:18:47,389 --> 01:18:48,657 And you might see some other folks 751 01:18:48,657 --> 01:18:50,892 around the room also wearing green a lot. 752 01:18:50,892 --> 01:18:51,960 Why green? 753 01:18:51,960 --> 01:18:54,463 Well, at NASA, we love our superstitions. 754 01:18:54,463 --> 01:18:56,832 And we love our traditions. 755 01:18:56,832 --> 01:18:59,801 And for the launch team. 756 01:19:00,936 --> 01:19:02,504 Green is one of those, 757 01:19:02,504 --> 01:19:05,640 fun traditions that they like to carry on. 758 01:19:05,874 --> 01:19:08,710 Green for them means go. 759 01:19:08,710 --> 01:19:10,445 So they wear green for good luck. 760 01:19:20,956 --> 01:19:23,959 Now the launch team, they communicate with each other via 761 01:19:23,959 --> 01:19:24,960 these communication 762 01:19:24,960 --> 01:19:28,563 channels to update how we are in the countdown. 763 01:19:29,164 --> 01:19:31,767 I'll be monitoring those loops and I'll report out 764 01:19:31,767 --> 01:19:34,770 as each call out is made. 765 01:19:37,072 --> 01:19:38,006 The team actually 766 01:19:38,006 --> 01:19:43,145 just reported that we have now transitioned from slow fill 767 01:19:43,145 --> 01:19:47,616 to fast fill on the core stage liquid hydrogen tank. 768 01:19:48,150 --> 01:19:51,353 This means we are now in fast bill for both 769 01:19:51,553 --> 01:19:55,123 liquid hydrogen and liquid oxygen. 770 01:20:01,429 --> 01:20:03,932 Now following fast fill, teams 771 01:20:03,932 --> 01:20:06,968 will then transition into what is called topping. 772 01:20:08,436 --> 01:20:11,072 Topping just refers to finishing up 773 01:20:11,072 --> 01:20:14,242 the last little bit that is needed to get to 100% 774 01:20:14,242 --> 01:20:17,245 level on both tanks. 775 01:20:17,712 --> 01:20:19,781 Once we finish topping, we will then enter 776 01:20:19,781 --> 01:20:21,783 what is called replenish mode. 777 01:20:21,783 --> 01:20:24,853 And this means that the teams are just constantly replenishing 778 01:20:24,853 --> 01:20:28,056 these tanks to maintain 100% flight level. 779 01:20:28,490 --> 01:20:30,659 This is done because as the temperatures 780 01:20:30,659 --> 01:20:32,127 of these liquid propellants 781 01:20:32,127 --> 01:20:34,663 naturally warm up throughout the countdown, 782 01:20:34,663 --> 01:20:37,666 they will start venting off into a gas state. 783 01:20:38,166 --> 01:20:39,267 And so because of that, 784 01:20:39,267 --> 01:20:39,734 the teams 785 01:20:39,734 --> 01:20:42,270 want to constantly be replenishing the tanks 786 01:20:42,270 --> 01:20:44,406 so that they're not losing any propellant. 787 01:20:44,406 --> 01:20:47,042 And we're going down from that 100% level. 788 01:20:50,645 --> 01:20:51,079 So again, 789 01:20:51,079 --> 01:20:54,216 we are now in fast fill for both core stage 790 01:20:54,216 --> 01:20:57,252 liquid hydrogen and liquid oxygen. 791 01:21:00,088 --> 01:21:01,890 On the upper stage, meanwhile, we haven't 792 01:21:01,890 --> 01:21:04,559 started our propellant loading operations. 793 01:21:04,559 --> 01:21:06,595 There. 794 01:21:06,595 --> 01:21:09,831 I will report out once that process is also underway. 795 01:21:11,299 --> 01:21:13,902 Teams will first start with chilling down 796 01:21:13,902 --> 01:21:16,905 the upper stage liquid hydrogen tank. 797 01:21:18,340 --> 01:21:21,443 And because the upper stage is so much smaller 798 01:21:21,443 --> 01:21:22,777 than the core stage, 799 01:21:22,777 --> 01:21:25,680 it actually gets to skip a step in its propellant 800 01:21:25,680 --> 01:21:26,848 loading operations, 801 01:21:26,848 --> 01:21:29,851 and it goes straight from chill down to fast fill. 802 01:21:31,653 --> 01:21:33,388 And really, this is done again 803 01:21:33,388 --> 01:21:36,391 because of the sizes of these tanks 804 01:21:36,524 --> 01:21:38,593 on the core stage. 805 01:21:38,593 --> 01:21:41,630 You have the liquid hydrogen tank that fits roughly 806 01:21:41,630 --> 01:21:44,766 537,000 807 01:21:44,766 --> 01:21:47,769 gallons of liquid hydrogen. 808 01:21:48,270 --> 01:21:50,205 The liquid oxygen tank, meanwhile, holds 809 01:21:50,205 --> 01:21:54,476 roughly 196,000 gallons in total. 810 01:21:54,476 --> 01:21:57,612 That's about 733,000 811 01:21:57,612 --> 01:22:00,982 gallons on the core stage alone. 812 01:22:04,619 --> 01:22:06,087 On the upper stage, meanwhile, 813 01:22:06,087 --> 01:22:09,724 the total amount of propellant is roughly 24,000 gallons. 814 01:22:10,058 --> 01:22:13,061 So significantly smaller. 815 01:22:14,963 --> 01:22:17,132 And because of this, they are able to go straight 816 01:22:17,132 --> 01:22:20,135 from chill down into fast fill. 817 01:22:25,340 --> 01:22:26,441 Now again, we have not 818 01:22:26,441 --> 01:22:29,577 started our propellant loading operations on the upper stage, 819 01:22:29,811 --> 01:22:33,014 also known as the Interim Cryogenic Propulsion Stage. 820 01:22:33,882 --> 01:22:36,851 I'll report out once that process is underway. 821 01:22:41,456 --> 01:22:44,225 But to quickly recap, 822 01:22:44,225 --> 01:22:46,361 we are in fast fill for the core stage. 823 01:22:46,361 --> 01:22:49,331 Liquid hydrogen and liquid oxygen. 824 01:22:58,106 --> 01:22:59,741 Now, all of these tanks on both 825 01:22:59,741 --> 01:23:01,409 the core stage and the upper stage 826 01:23:01,409 --> 01:23:05,113 are going to feed the engines underneath those both stages. 827 01:23:05,680 --> 01:23:08,683 On the core stage, there are four Rs 25 engines. 828 01:23:08,683 --> 01:23:10,852 You see them there on your screen right there. 829 01:23:10,852 --> 01:23:13,855 So both the liquid hydrogen and the liquid oxygen tank, 830 01:23:13,855 --> 01:23:19,060 they feed those four Rs 25 engines that start at roughly 831 01:23:19,828 --> 01:23:23,965 T -6.36 seconds until liftoff. 832 01:23:23,965 --> 01:23:26,201 That's when they get ready. 833 01:23:28,603 --> 01:23:31,406 And then on the upper stage, the liquid oxygen and liquid 834 01:23:31,406 --> 01:23:34,542 hydrogen tank feed that one RL ten engine. 835 01:23:39,581 --> 01:23:42,484 Now, combined with the solid rocket boosters, 836 01:23:42,484 --> 01:23:45,854 SLS produces roughly 8.8 million 837 01:23:45,854 --> 01:23:48,857 pounds of thrust. 838 01:24:01,903 --> 01:24:04,939 In total, it is 322ft 839 01:24:04,973 --> 01:24:08,443 tall, taller than the Statue of Liberty. 840 01:24:13,681 --> 01:24:14,582 In fact, 841 01:24:14,582 --> 01:24:17,585 let's break down the rocket for you a little bit. 842 01:24:17,585 --> 01:24:20,588 So up there at the top, we have our Orion spacecraft. 843 01:24:20,622 --> 01:24:22,991 Right underneath is actually then what is called 844 01:24:22,991 --> 01:24:24,159 the Orion stage adapter. 845 01:24:24,159 --> 01:24:26,861 That's when the SLS rocket actually starts. 846 01:24:26,861 --> 01:24:28,663 The Orion stage adapter is the smallest 847 01:24:28,663 --> 01:24:31,833 portion of the rocket, roughly five feet tall. 848 01:24:32,534 --> 01:24:34,903 Underneath that is then our upper stage. 849 01:24:34,903 --> 01:24:37,872 Or that interim cryogenic propulsion stage. 850 01:24:39,140 --> 01:24:43,044 Then you'll see this nose cone orange shape underneath. 851 01:24:43,144 --> 01:24:45,313 That's the launch vehicle stage adapter. 852 01:24:45,313 --> 01:24:46,881 It's actually enclosing part 853 01:24:46,881 --> 01:24:48,650 of that upper stage for protection. 854 01:24:50,351 --> 01:24:53,388 Underneath the cone shaped structure is our core stage. 855 01:24:53,822 --> 01:24:56,825 That is the first stage. 856 01:24:57,192 --> 01:25:00,161 It has that pretty butterscotch color. 857 01:25:01,329 --> 01:25:03,198 And that is due to the thermal protection 858 01:25:03,198 --> 01:25:06,201 system, the foam that is used to again, 859 01:25:06,668 --> 01:25:09,003 protect the rocket. 860 01:25:09,003 --> 01:25:10,338 On either side of the core stage 861 01:25:10,338 --> 01:25:13,341 are the two solid rocket boosters. 862 01:25:14,375 --> 01:25:17,679 And then down right at the bottom are 863 01:25:17,679 --> 01:25:20,682 the four Rs 25 engines. 864 01:25:25,253 --> 01:25:25,720 All right. 865 01:25:25,720 --> 01:25:28,156 So we are in fast fill again for core stage 866 01:25:28,156 --> 01:25:31,126 liquid hydrogen and liquid oxygen. 867 01:25:31,126 --> 01:25:34,129 I'll report out when the next milestone is underway 868 01:25:34,963 --> 01:25:38,233 and when we start our upper stage loading operations. 869 01:40:25,619 --> 01:40:27,388 This is Artemis launch control. 870 01:40:27,388 --> 01:40:29,490 We are currently eight hours 871 01:40:29,490 --> 01:40:33,494 and 58 minutes and counting from the opening of today's 872 01:40:33,494 --> 01:40:37,765 launch window for the Artemis two mission at. 873 01:40:37,765 --> 01:40:41,101 Launch window opens at 6:24 p.m. 874 01:40:41,101 --> 01:40:44,004 eastern Time later today. 875 01:40:44,004 --> 01:40:46,373 Teams do have a two hour launch window 876 01:40:46,373 --> 01:40:47,975 in which they can try to launch. 877 01:40:47,975 --> 01:40:51,845 So if we don't launch right at 6:24 p.m., that is okay. 878 01:40:53,013 --> 01:40:53,614 You're looking at a 879 01:40:53,614 --> 01:40:56,617 live view of our Artemis launch team. 880 01:40:56,850 --> 01:40:59,853 They are in the process of loading liquid propellant 881 01:40:59,987 --> 01:41:02,823 onboard the SLS or the Space 882 01:41:02,823 --> 01:41:05,826 Launch System rocket. 883 01:41:05,926 --> 01:41:09,063 We're currently in the process of loading liquid hydrogen 884 01:41:09,063 --> 01:41:13,167 and liquid oxygen on the core stage of the SLS rocket. 885 01:41:15,235 --> 01:41:18,138 Now, the core stage is the first stage of that rocket. 886 01:41:18,138 --> 01:41:21,175 You can see there on your screen it is the orange section 887 01:41:21,175 --> 01:41:24,278 in between the two solid rocket boosters. 888 01:41:25,913 --> 01:41:29,817 That's actually a great view of our rocket at Launch Pad 39 B. 889 01:41:29,817 --> 01:41:32,653 I mean, you can see it is a beautiful day. 890 01:41:32,653 --> 01:41:35,823 We have some puffy white clouds, blue skies. 891 01:41:36,090 --> 01:41:38,826 All in all, very favorable weather. 892 01:41:38,826 --> 01:41:40,594 In fact, our launch weather officers, 893 01:41:40,594 --> 01:41:41,495 they've been predicting 894 01:41:41,495 --> 01:41:46,166 80% chance of go for our launch window this evening. 895 01:41:59,680 --> 01:42:01,014 Now they're at the bottom of 896 01:42:01,014 --> 01:42:04,318 the rocket are our four Rs 25 engines. 897 01:42:05,285 --> 01:42:05,619 Each. 898 01:42:05,619 --> 01:42:09,022 Engines are roughly the size of a compact car. 899 01:42:11,325 --> 01:42:12,793 The solid rocket boosters. 900 01:42:12,793 --> 01:42:15,028 Those are the two white rocket boosters. 901 01:42:15,028 --> 01:42:18,298 And on either side of the core stage, each 902 01:42:18,298 --> 01:42:21,368 booster is taller than the Statue of Liberty, 903 01:42:21,668 --> 01:42:26,039 and they also hold the entire weight of the rocket. 904 01:42:32,679 --> 01:42:33,881 Now fully fueled, 905 01:42:33,881 --> 01:42:38,585 SLS weighs 5.74 million pounds. 906 01:42:45,526 --> 01:42:47,094 And again, you can see on your screen 907 01:42:47,094 --> 01:42:50,364 you might see some, some gas that's being vented off 908 01:42:50,364 --> 01:42:54,001 underneath the, the rocket and the mobile launcher. 909 01:42:54,001 --> 01:42:57,671 The mobile launcher is that gray shape structure 910 01:42:58,272 --> 01:43:00,107 that is connected to the rocket. 911 01:43:00,107 --> 01:43:02,242 It's essentially what is providing 912 01:43:02,242 --> 01:43:05,846 all of the power the propellant, the coolants, everything, 913 01:43:05,846 --> 01:43:09,349 all the access point to keep the rocket in the spacecraft alive 914 01:43:09,983 --> 01:43:13,520 and functioning and running until it is ready for launch. 915 01:43:14,121 --> 01:43:17,124 Now that gas that you're seeing being vented off, 916 01:43:17,257 --> 01:43:20,527 it doesn't mean we're getting ready to lift off any time soon. 917 01:43:20,661 --> 01:43:22,930 It's just that natural boil off that is 918 01:43:22,930 --> 01:43:26,533 coming from the propellant that is being fed to the rocket 919 01:43:26,667 --> 01:43:29,636 as it naturally warms up over time. 920 01:43:29,636 --> 01:43:32,239 So totally normal. We expect to see it. 921 01:43:32,239 --> 01:43:34,241 You'll probably expect to see it some more 922 01:43:34,241 --> 01:43:37,477 as we actually transition and continue with our propellant 923 01:43:37,477 --> 01:43:40,547 loading procedures and move forward into the upper stage, 924 01:43:40,547 --> 01:43:44,384 which is that second stage on top of the core stage, 925 01:43:44,985 --> 01:43:47,988 also known as the Interim Cryogenic Propulsion Stage, 926 01:43:48,355 --> 01:43:49,623 when we also start loading 927 01:43:49,623 --> 01:43:51,491 propellant on board that second stage, 928 01:43:51,491 --> 01:43:53,560 you might also see some gas also starting 929 01:43:53,560 --> 01:43:56,196 to, vent off at that higher level. 930 01:43:56,196 --> 01:43:57,464 In fact, you see there on your screen 931 01:43:57,464 --> 01:44:01,134 is a nice, better, closer up view of the upper stage. 932 01:44:01,401 --> 01:44:03,370 And then our Orion spacecraft up on top. 933 01:44:06,073 --> 01:44:06,573 Now let's take 934 01:44:06,573 --> 01:44:09,576 you to a graphic of where we currently are 935 01:44:09,643 --> 01:44:12,646 in our tanking operations. 936 01:44:16,049 --> 01:44:18,852 You see there on your screen on the left hand side, 937 01:44:18,852 --> 01:44:22,222 it will tell you how far we are in our core stage. 938 01:44:22,222 --> 01:44:24,758 Loading operations. 939 01:44:24,758 --> 01:44:28,495 We're currently 28% of the way filled in liquid oxygen, 940 01:44:29,062 --> 01:44:31,498 and about 30% of the way filled for the liquid 941 01:44:31,498 --> 01:44:34,501 hydrogen side. 942 01:44:35,335 --> 01:44:36,870 Meanwhile, 943 01:44:36,870 --> 01:44:38,939 for the Interim cryogenic propulsion stage, 944 01:44:38,939 --> 01:44:41,174 that upper stage, you see, it's all grayed out there 945 01:44:41,174 --> 01:44:45,212 because we haven't begun that, propellant loading operations. 946 01:44:45,612 --> 01:44:48,582 I'll report out once that is underway. 947 01:44:49,583 --> 01:44:51,285 But for right now, we're just focusing 948 01:44:51,285 --> 01:44:54,288 on the core stage. 949 01:44:56,990 --> 01:44:59,326 Now, in the meantime, while the launch team is right 950 01:44:59,326 --> 01:45:03,196 now starting to feel that fuel, the rocket and that propellant 951 01:45:03,196 --> 01:45:04,498 loading is underway. 952 01:45:07,634 --> 01:45:08,802 Our astronauts 953 01:45:08,802 --> 01:45:11,772 are getting ready to wake up 954 01:45:11,938 --> 01:45:14,941 and start their day. 955 01:45:19,613 --> 01:45:22,149 As a reminder, we will be sending 956 01:45:22,149 --> 01:45:25,552 four astronauts around the moon and back. 957 01:45:28,121 --> 01:45:30,657 Commander Reid Wiseman, 958 01:45:30,657 --> 01:45:33,226 pilot Victor Glover, and mission 959 01:45:33,226 --> 01:45:36,396 specialists Christina Cook and Jeremy Hansen 960 01:45:37,631 --> 01:45:39,433 will go on a ten day mission 961 01:45:39,433 --> 01:45:42,402 around the moon. 962 01:45:42,703 --> 01:45:45,672 Artemis two is a test flight. 963 01:45:46,773 --> 01:45:48,442 Where we are going to test the life 964 01:45:48,442 --> 01:45:51,845 support systems with our flight crew on board. 965 01:45:52,412 --> 01:45:55,582 This is NASA's first crewed Artemis mission, 966 01:45:56,850 --> 01:46:01,121 and it will pave the way for our future Artemis missions. 967 01:46:01,121 --> 01:46:04,624 For when we land humans back on the lunar surface. 968 01:46:16,303 --> 01:46:19,439 So, to quickly recap, we are in fast 969 01:46:19,439 --> 01:46:23,377 fill for our core stage liquid hydrogen and liquid oxygen, 970 01:46:24,778 --> 01:46:26,913 and I'll report out 971 01:46:26,913 --> 01:46:30,250 once our upper stage propellant loading operations 972 01:46:30,250 --> 01:46:31,151 are underway. 973 01:53:32,138 --> 01:53:33,873 This is Artemis launch control. 974 01:53:33,873 --> 01:53:37,744 We are currently eight hours and 45 minutes and counting 975 01:53:37,744 --> 01:53:42,182 from the opening of today's launch window for NASA's Artemis 976 01:53:42,282 --> 01:53:43,917 two mission. 977 01:53:43,917 --> 01:53:46,920 Now, that launch window opens at 6:24 p.m. 978 01:53:46,920 --> 01:53:47,954 eastern time. 979 01:53:47,954 --> 01:53:50,790 And teams do have a two hour launch window, 980 01:53:50,790 --> 01:53:54,561 which means that they can try launching within those two hours 981 01:53:54,561 --> 01:53:57,430 if they are unable to hit it right at the start. 982 01:53:57,430 --> 01:54:00,433 At 624. 983 01:54:01,434 --> 01:54:04,437 Now, the Artemis launch team is currently loading 984 01:54:04,437 --> 01:54:08,441 super cold or cryogenic liquid propellant 985 01:54:08,608 --> 01:54:12,078 onto the SLES or Space Launch System rocket. 986 01:54:13,146 --> 01:54:15,882 We're currently in our fast fill operations for the 987 01:54:15,882 --> 01:54:18,852 core stage liquid hydrogen and liquid oxygen tanks, 988 01:54:19,152 --> 01:54:22,655 and the teams just reported that they are also now starting 989 01:54:22,655 --> 01:54:26,793 their chilled down operations for the liquid hydrogen tank on 990 01:54:26,793 --> 01:54:30,363 the upper stage, or that second stage of the SLS rocket. 991 01:54:30,763 --> 01:54:33,666 You can see a great view of it there on your screen. 992 01:54:33,666 --> 01:54:36,402 It sits right up on top of where you have the, 993 01:54:36,402 --> 01:54:40,440 the nose cone shape structure that's orange up on top. 994 01:54:40,440 --> 01:54:43,376 There is a portion of that upper stage, 995 01:54:43,376 --> 01:54:46,779 also known as the Interim Cryogenic Propulsion Stage. 996 01:54:49,082 --> 01:54:51,784 And then if you're curious, 997 01:54:51,784 --> 01:54:53,486 the, nose cone shaped, 998 01:54:53,486 --> 01:54:54,721 structure shape that is called 999 01:54:54,721 --> 01:54:56,856 also the launch vehicle stage adapter. 1000 01:54:56,856 --> 01:54:58,391 It is a part of the rocket. 1001 01:54:58,391 --> 01:54:59,926 And it is enclosing 1002 01:54:59,926 --> 01:55:03,229 also a portion of the interim cryogenic propulsion stage. 1003 01:55:03,396 --> 01:55:04,764 This is done for protection. 1004 01:55:04,764 --> 01:55:07,033 So you don't see the engine. 1005 01:55:07,033 --> 01:55:08,868 That's underneath that second stage. 1006 01:55:08,868 --> 01:55:12,872 But it is underneath there hidden behind the, 1007 01:55:12,872 --> 01:55:15,875 the launch vehicle stage adapter. 1008 01:55:15,909 --> 01:55:18,912 So again, we are now starting our chilled down 1009 01:55:18,945 --> 01:55:22,482 for the liquid hydrogen on our upper stage. 1010 01:55:24,150 --> 01:55:27,453 Following that, we will then transition into fast fill 1011 01:55:27,520 --> 01:55:30,523 for liquid hydrogen on the upper stage. 1012 01:55:31,958 --> 01:55:34,727 Meanwhile, on the core stage that is the first stage of 1013 01:55:34,727 --> 01:55:37,764 the rocket fast fill is already underway. 1014 01:55:39,732 --> 01:55:42,468 There's a great profile shot, so right underneath 1015 01:55:42,468 --> 01:55:45,538 that nose cone shape is then that cylinder orange structure. 1016 01:55:45,538 --> 01:55:46,906 That is the core stage. 1017 01:55:48,975 --> 01:55:51,911 It is one of the tallest first stages of a rocket 1018 01:55:51,911 --> 01:55:54,013 that NASA has ever used for any mission. 1019 01:55:54,013 --> 01:55:56,983 It's roughly 212ft tall. 1020 01:55:57,383 --> 01:56:00,486 In fact, in total, the SLS rocket and Orion 1021 01:56:00,486 --> 01:56:03,823 spacecraft sit at roughly 322ft 1022 01:56:03,823 --> 01:56:06,826 tall. 1023 01:56:12,899 --> 01:56:14,067 Now I'll report out 1024 01:56:14,067 --> 01:56:16,569 once chilled down is complete on the upper stage, 1025 01:56:16,569 --> 01:56:19,572 and we have transitioned into fast fill. 1026 01:56:27,580 --> 01:56:30,149 As a quick recap. 1027 01:56:30,149 --> 01:56:34,687 Artemis two is scheduled to launch no earlier than 6:24 p.m. 1028 01:56:34,921 --> 01:56:36,823 Eastern Time this evening. 1029 01:56:36,823 --> 01:56:39,826 Teams do have a two hour launch window. 1030 01:56:41,861 --> 01:56:43,396 And this mission will be sending 1031 01:56:43,396 --> 01:56:46,399 four astronauts around the moon and back. 1032 01:56:48,301 --> 01:56:49,902 We'll be sending NASA astronauts. 1033 01:56:49,902 --> 01:56:52,171 Read Wiseman, 1034 01:56:52,171 --> 01:56:56,376 Victor Glover, Christina Cook and Canadian Space 1035 01:56:56,376 --> 01:56:59,779 Agency astronaut Jeremy Hansen on a ten day 1036 01:56:59,779 --> 01:57:02,782 mission. 1037 01:57:05,151 --> 01:57:06,619 They actually just got the go 1038 01:57:06,619 --> 01:57:09,622 not too long ago to actually start waking up 1039 01:57:09,689 --> 01:57:13,059 and officially start their launch day. 1040 01:57:17,830 --> 01:57:18,197 Now that's a 1041 01:57:18,197 --> 01:57:21,401 great view of our SLS rocket at Launch Pad 39 B up. 1042 01:57:21,401 --> 01:57:22,301 We just switched it. 1043 01:57:22,301 --> 01:57:23,536 But as you saw there, 1044 01:57:23,536 --> 01:57:26,539 it's a gorgeous day here on the Space Coast. 1045 01:57:26,639 --> 01:57:30,043 We have some beautiful blue skies, some puffy white clouds. 1046 01:57:31,811 --> 01:57:34,213 Our launch weather officers are predicting 80% 1047 01:57:34,213 --> 01:57:37,417 chance of favorable conditions throughout our two hour 1048 01:57:37,417 --> 01:57:40,420 launch window. 1049 01:57:42,522 --> 01:57:44,157 Now, of course, if there are any changes 1050 01:57:44,157 --> 01:57:47,160 or updates, we will make sure to provide those to you. 1051 01:57:49,529 --> 01:57:50,129 In fact, 1052 01:57:50,129 --> 01:57:51,197 NASA will be providing 1053 01:57:51,197 --> 01:57:55,001 24 over seven live coverage of this entire mission, 1054 01:57:55,301 --> 01:57:57,470 starting with our propellant loading operations, 1055 01:57:57,470 --> 01:58:00,506 which is currently happening and will continue all the way 1056 01:58:00,506 --> 01:58:03,509 through our splashdown procedures. 1057 01:58:11,851 --> 01:58:13,019 You can see there on your screen 1058 01:58:13,019 --> 01:58:16,022 how to watch. 1059 01:58:25,331 --> 01:58:28,334 Now lasting approximate approximately ten days, 1060 01:58:28,701 --> 01:58:31,571 Artemis two will send four astronauts 1061 01:58:31,571 --> 01:58:34,807 to test the Orion spacecraft and a high Earth orbit 1062 01:58:35,441 --> 01:58:37,810 before becoming the first astronauts 1063 01:58:37,810 --> 01:58:43,683 to fly around the moon since the Apollo 17 crew in 1972. 1064 01:58:56,462 --> 01:58:58,131 Again, we are in fast fill 1065 01:58:58,131 --> 01:59:01,134 for core stage liquid hydrogen and liquid oxygen, 1066 01:59:01,834 --> 01:59:05,138 and we are in chill down for the liquid hydrogen tank 1067 01:59:05,138 --> 01:59:08,141 on our upper stage or interim cryogenic 1068 01:59:08,141 --> 01:59:11,110 propulsion stage. 1069 02:08:16,689 --> 02:08:18,891 Good morning from Florida Space coast. 1070 02:08:18,891 --> 02:08:20,492 This is Artemis launch control. 1071 02:08:20,492 --> 02:08:23,095 We are currently eight hours and 30 minutes 1072 02:08:23,095 --> 02:08:26,432 and counting from the opening of today's launch window 1073 02:08:26,532 --> 02:08:29,501 for NASA's Artemis two mission. 1074 02:08:30,002 --> 02:08:32,371 I'm Antonia Jaramillo and NASA communications. 1075 02:08:32,371 --> 02:08:35,607 And if you're just joining us, the Space Launch System, or SLS 1076 02:08:35,607 --> 02:08:40,345 rocket is in the process of of cryogenic propellant loading. 1077 02:08:40,546 --> 02:08:42,381 That means the launch team that is currently 1078 02:08:42,381 --> 02:08:44,917 in firing room, one that you see on your screen 1079 02:08:44,917 --> 02:08:49,988 there are loading the cryogenic or super cold liquid hydrogen 1080 02:08:49,988 --> 02:08:54,793 and liquid oxygen on the SLS rocket, fueling it for flight. 1081 02:08:57,396 --> 02:08:59,998 Now, the team just reported that we have now started 1082 02:08:59,998 --> 02:09:04,036 our fast fill operations on the liquid hydrogen tank 1083 02:09:04,203 --> 02:09:07,439 on our upper stage of the SLS rocket 1084 02:09:08,240 --> 02:09:11,510 that is also called the Interim Cryogenic Propulsion Stage. 1085 02:09:11,610 --> 02:09:14,713 It is the second stage of our SLS rocket. 1086 02:09:14,813 --> 02:09:17,416 You have a great view of it there on your screen, 1087 02:09:17,416 --> 02:09:18,450 up at the top of you. 1088 02:09:18,450 --> 02:09:21,220 See you have the Orion spacecraft underneath. 1089 02:09:21,220 --> 02:09:24,156 There will be then actually the smallest section 1090 02:09:24,156 --> 02:09:27,659 of the SLS rocket known as the Orion stage adapter. 1091 02:09:27,659 --> 02:09:29,695 And then quickly and then shortly underneath 1092 02:09:29,695 --> 02:09:33,031 that is our interim cryogenic propulsion stage. 1093 02:09:33,766 --> 02:09:36,335 Now teams are now starting the fast 1094 02:09:36,335 --> 02:09:39,671 fill operations for liquid hydrogen. 1095 02:09:42,040 --> 02:09:44,143 Now, fast fill, as the name suggests, means 1096 02:09:44,143 --> 02:09:47,579 that teams are just loading this propellant at a faster rate. 1097 02:09:52,151 --> 02:09:54,086 Now, following the 1098 02:09:54,086 --> 02:09:57,656 liquid hydrogen operations on the upper stage, teams will 1099 02:09:57,656 --> 02:10:00,993 then also work on then their propellant loading operations 1100 02:10:00,993 --> 02:10:03,996 for the liquid oxygen tank that is also in their. 1101 02:10:04,897 --> 02:10:08,033 In total, the SLS rocket has four tanks, 1102 02:10:08,667 --> 02:10:11,670 two liquid hydrogen and two liquid oxygen. 1103 02:10:11,804 --> 02:10:14,473 One of each on each stage. 1104 02:10:14,473 --> 02:10:15,274 So you have there 1105 02:10:15,274 --> 02:10:19,044 our upper stage or the interim cryogenic propulsion stage. 1106 02:10:19,344 --> 02:10:22,347 And then underneath sits the core stage. 1107 02:10:22,714 --> 02:10:26,885 That is the first stage and the main stage of the SLS rocket. 1108 02:10:27,386 --> 02:10:29,588 It is the orange segment that you see there 1109 02:10:29,588 --> 02:10:33,058 on your screen in between the two solid rocket boosters. 1110 02:10:34,059 --> 02:10:37,396 We are also in our fast fill operations for both liquid 1111 02:10:37,396 --> 02:10:40,399 hydrogen and liquid oxygen on the core stage. 1112 02:10:41,967 --> 02:10:43,936 So fueling is well underway. 1113 02:10:46,738 --> 02:10:49,741 And everything is looking good so far 1114 02:10:50,075 --> 02:10:50,442 for that. 1115 02:10:50,442 --> 02:10:54,713 For our two hour launch window that opens at 6:24 p.m. 1116 02:10:54,713 --> 02:10:57,716 eastern time this evening. 1117 02:10:59,351 --> 02:10:59,952 Now, Artemis 1118 02:10:59,952 --> 02:11:03,121 two is scheduled to lift off from Launch Complex 39 B. 1119 02:11:03,922 --> 02:11:05,457 That's what you see there on your screen. 1120 02:11:05,457 --> 02:11:08,460 That's where SLS is currently situated. 1121 02:11:09,595 --> 02:11:10,762 And it is a gorgeous day 1122 02:11:10,762 --> 02:11:13,765 here on the Space Coast. 1123 02:11:14,366 --> 02:11:16,501 We have some beautiful white clouds, some 1124 02:11:16,501 --> 02:11:19,905 beautiful white puffy clouds and some clear blue skies. 1125 02:11:21,073 --> 02:11:23,141 We're looking at 80% chance of favorable 1126 02:11:23,141 --> 02:11:26,111 weather conditions. 1127 02:11:28,981 --> 02:11:31,383 And our astronauts that are getting ready to launch 1128 02:11:31,383 --> 02:11:35,320 on this historic mission are now starting their day. 1129 02:11:35,454 --> 02:11:38,457 They woke up not too long ago. 1130 02:11:39,391 --> 02:11:41,994 And will pretty soon go through all of the checkouts 1131 02:11:41,994 --> 02:11:44,897 and steps that are needed before they're ready 1132 02:11:44,897 --> 02:11:47,099 to get on their rocket. 1133 02:11:47,099 --> 02:11:49,902 There's a picture of them on your screen there. 1134 02:11:49,902 --> 02:11:52,905 From left to right, we have the pilot, Victor Glover. 1135 02:11:53,138 --> 02:11:55,841 Then you have our mission specialist, Jeremy Hansen. 1136 02:11:55,841 --> 02:11:57,743 And right next to him is our other mission 1137 02:11:57,743 --> 02:11:59,077 specialist, Christina Cook. 1138 02:12:00,245 --> 02:12:00,646 Next to 1139 02:12:00,646 --> 02:12:03,649 her is then our commander, Reid Wiseman. 1140 02:12:03,815 --> 02:12:06,318 These four astronauts 1141 02:12:06,318 --> 02:12:08,253 will go on a ten day mission 1142 02:12:08,253 --> 02:12:11,089 around the moon and back 1143 02:12:11,089 --> 02:12:14,092 onboard the Orion spacecraft. 1144 02:12:21,199 --> 02:12:23,869 A fun fact you see, again there we were talking a little bit 1145 02:12:23,869 --> 02:12:25,704 about the different sections of the rocket, 1146 02:12:25,704 --> 02:12:28,707 and we mentioned briefly the Orion stage adapter. 1147 02:12:30,342 --> 02:12:31,576 Now the Orion stage adapter 1148 02:12:31,576 --> 02:12:34,980 is the, the last section of the SLS rocket. 1149 02:12:34,980 --> 02:12:37,416 It's what sits in between the interim Cryogenic 1150 02:12:37,416 --> 02:12:39,751 propulsion stage and the Orion spacecraft. 1151 02:12:39,751 --> 02:12:41,186 And it's also what houses 1152 02:12:41,186 --> 02:12:44,323 our secondary payloads or these shoe boxes. 1153 02:12:44,323 --> 02:12:47,893 CubeSats that will be providing 1154 02:12:47,893 --> 02:12:50,896 and conducting scientific experiments. 1155 02:12:51,163 --> 02:12:53,532 They'll be deployed shortly after separation 1156 02:12:53,532 --> 02:12:55,534 from the upper stage and the spacecraft, 1157 02:12:55,534 --> 02:12:58,837 and they will go to their specific destination in space. 1158 02:13:00,839 --> 02:13:03,842 To conduct scientific data. 1159 02:13:05,410 --> 02:13:07,980 Now inside the Orion stage adapter. 1160 02:13:07,980 --> 02:13:10,983 Fun fact our astronauts. 1161 02:13:11,016 --> 02:13:12,384 So read Wiseman, 1162 02:13:12,384 --> 02:13:15,387 Victor Glover, Christina Cook, and Jeremy Hansen. 1163 02:13:15,454 --> 02:13:16,121 They actually 1164 02:13:16,121 --> 02:13:19,992 got the opportunity to sign the interior of the OSR 1165 02:13:20,092 --> 02:13:22,494 or that Orion stage adapter. 1166 02:13:22,494 --> 02:13:25,530 So their names are on that rocket. 1167 02:13:34,239 --> 02:13:37,242 It is fully built by NASA 1168 02:13:38,143 --> 02:13:40,012 at Marshall Space Flight Center 1169 02:13:40,012 --> 02:13:43,015 in Huntsville, Alabama. 1170 02:13:48,253 --> 02:13:49,621 Now going back to the upper stage, 1171 02:13:49,621 --> 02:13:51,790 that interim cryogenic propulsion stage, 1172 02:13:51,790 --> 02:13:55,994 it holds roughly 24,000 gallons of liquid propellant. 1173 02:13:56,995 --> 02:14:00,766 The liquid hydrogen tank is approximately 17,000 gallons, 1174 02:14:01,500 --> 02:14:04,036 and the liquid oxygen is a roughly 6000 1175 02:14:04,036 --> 02:14:07,039 gallons. 1176 02:14:07,773 --> 02:14:10,642 Much smaller in comparison to the core stage 1177 02:14:10,642 --> 02:14:15,313 that holds roughly 733,000 gallons total. 1178 02:14:16,581 --> 02:14:19,518 You have a 537,000 gallons 1179 02:14:19,518 --> 02:14:22,521 of liquid hydrogen on the core stage tank, 1180 02:14:22,854 --> 02:14:29,594 and then roughly 197,000 or 196, 1181 02:14:31,396 --> 02:14:32,764 Fully fueled 1182 02:14:32,764 --> 02:14:37,002 SLS weighs about 5.74 million 1183 02:14:37,002 --> 02:14:40,005 pounds of thrust. 1184 02:14:42,641 --> 02:14:45,577 And now all these four tanks, the one on the upper stage 1185 02:14:45,577 --> 02:14:47,412 and the one on the 1186 02:14:47,412 --> 02:14:49,915 on the core stage, they feed all those things. 1187 02:14:49,915 --> 02:14:53,118 They feed into the engines at liftoff. 1188 02:14:54,286 --> 02:14:57,322 So the core stage will feed the four Rs 25 engines 1189 02:14:57,322 --> 02:14:58,990 that you see at the bottom of your screen. 1190 02:14:58,990 --> 02:15:00,625 There. 1191 02:15:00,625 --> 02:15:02,794 And the upper stage, meanwhile, will feed. 1192 02:15:02,794 --> 02:15:06,498 It's one RL ten engine that is actually enclosed 1193 02:15:06,631 --> 02:15:09,067 by the launch vehicle stage adapter. 1194 02:15:09,067 --> 02:15:11,570 That is the nose cone shaped orange structure 1195 02:15:11,570 --> 02:15:12,838 that you see on your screen there. 1196 02:15:12,838 --> 02:15:16,408 It is actually a hiding the RL ten engine from our view, 1197 02:15:17,075 --> 02:15:19,578 but this is done on purpose to protect the 1198 02:15:19,578 --> 02:15:22,581 the upper stage. 1199 02:15:23,982 --> 02:15:26,551 So to quickly recap, we are in fast fill 1200 02:15:27,552 --> 02:15:30,522 for liquid hydrogen on our upper stage. 1201 02:15:31,123 --> 02:15:33,191 We have not started our propellant 1202 02:15:33,191 --> 02:15:36,194 loading operations on the liquid oxygen tank yet. 1203 02:15:36,194 --> 02:15:39,197 I'll report out once that operation is underway. 1204 02:15:41,833 --> 02:15:42,767 And on the core stage. 1205 02:15:42,767 --> 02:15:44,302 Meanwhile, we are still in our fast 1206 02:15:44,302 --> 02:15:47,472 fill operations for both tanks, for both liquid hydrogen 1207 02:15:47,472 --> 02:15:50,442 and liquid oxygen. 1208 02:32:39,817 --> 02:32:41,652 This is Artemis as launch control. 1209 02:32:41,652 --> 02:32:43,454 We are currently eight hours 1210 02:32:43,454 --> 02:32:46,991 and six minutes and counting from the opening of today's 1211 02:32:46,991 --> 02:32:50,261 launch window for the Artemis two mission. 1212 02:32:50,861 --> 02:32:53,998 Now, that launch window opens at 6:24 p.m. 1213 02:32:53,998 --> 02:32:55,833 eastern time this evening. 1214 02:32:55,833 --> 02:32:57,902 Teams do have a two hour launch window, 1215 02:32:57,902 --> 02:33:00,604 which means that if we don't launch right at 624, 1216 02:33:00,604 --> 02:33:01,205 they do have 1217 02:33:01,205 --> 02:33:04,208 an additional two hours in which they can try to launch. 1218 02:33:05,476 --> 02:33:08,179 Now, the launch team, which we see here on our screen, 1219 02:33:08,179 --> 02:33:09,580 they're currently in Firing Room 1220 02:33:09,580 --> 02:33:12,616 one at NASA's Kennedy Space Center in Florida. 1221 02:33:14,185 --> 02:33:16,053 They're in the process of loading 1222 02:33:16,053 --> 02:33:19,056 liquid propellant onto the SLS rocket. 1223 02:33:21,458 --> 02:33:22,893 Now, it's not just the launch team 1224 02:33:22,893 --> 02:33:24,962 that's here in the firing room that is helping 1225 02:33:24,962 --> 02:33:28,399 and is on on console for today's launch. 1226 02:33:28,766 --> 02:33:32,002 But we also have supporting teams across the country 1227 02:33:33,837 --> 02:33:36,840 that are tuning in to this countdown. 1228 02:33:38,209 --> 02:33:39,043 One of those teams 1229 02:33:39,043 --> 02:33:42,046 is actually the Artemis mission management team. 1230 02:33:42,947 --> 02:33:45,282 They recently just got here on console. 1231 02:33:45,282 --> 02:33:48,586 They have a, separate section and room. 1232 02:33:48,586 --> 02:33:49,520 If you actually look, it's 1233 02:33:49,520 --> 02:33:50,354 to the right hand 1234 02:33:50,354 --> 02:33:53,691 side of our launch director and assistant launch director, 1235 02:33:53,824 --> 02:33:56,827 Charlie Blackwell Thompson and Jeremy Graber, respectively. 1236 02:33:56,827 --> 02:33:58,028 Over there on the right hand side, 1237 02:33:58,028 --> 02:34:00,331 where you kind of see that a glass enclosure 1238 02:34:00,331 --> 02:34:02,499 structure in there is where our Artemis 1239 02:34:02,499 --> 02:34:05,502 mission management team will sit for the duration 1240 02:34:05,502 --> 02:34:06,503 of today's countdown. 1241 02:34:07,571 --> 02:34:08,472 Now, they just recently 1242 02:34:08,472 --> 02:34:11,475 arrived on console. 1243 02:34:13,844 --> 02:34:15,579 And apart from the mission management team, 1244 02:34:15,579 --> 02:34:18,582 we also have the mission Control team 1245 02:34:19,383 --> 02:34:22,386 at NASA's Johnson Space Center in Houston 1246 02:34:23,287 --> 02:34:26,357 and the SLS Engineering and Support Center 1247 02:34:26,490 --> 02:34:29,493 at NASA's Marshall Space Flight Center. 1248 02:34:30,694 --> 02:34:32,630 And this doesn't include the other several 1249 02:34:32,630 --> 02:34:35,633 contractor locations that are also around the country 1250 02:34:35,699 --> 02:34:37,701 supporting this launch. 1251 02:34:37,701 --> 02:34:40,704 And this mission. 1252 02:34:53,350 --> 02:34:56,120 So again, you have our prime main launch 1253 02:34:56,120 --> 02:34:59,189 team that is here in Firing Room one, Charlie Blackwell. 1254 02:34:59,223 --> 02:35:00,157 Thompson. 1255 02:35:00,157 --> 02:35:03,160 You see there, she's wearing a green blazer. 1256 02:35:03,827 --> 02:35:06,730 She's our launch director leading this team. 1257 02:35:06,730 --> 02:35:09,500 But then there are also supporting teams that are also 1258 02:35:09,500 --> 02:35:12,503 assisting the launch team throughout today's countdown. 1259 02:35:12,770 --> 02:35:15,773 That includes the Artemis mission management team, 1260 02:35:17,141 --> 02:35:20,077 the mission control team in Houston 1261 02:35:20,077 --> 02:35:23,180 and the SLS Engineering and Support Center at NASA's 1262 02:35:23,180 --> 02:35:24,381 Marshall Space Flight Center, 1263 02:35:26,050 --> 02:35:28,952 in addition to several contractor locations 1264 02:35:28,952 --> 02:35:31,955 that are located around the country. 1265 02:35:35,259 --> 02:35:36,060 Now, as we mentioned, 1266 02:35:36,060 --> 02:35:37,194 we are currently 1267 02:35:37,194 --> 02:35:40,331 in our propellant loading operations for the SLS rocket. 1268 02:35:40,998 --> 02:35:43,634 Teams are currently in fast fill 1269 02:35:43,634 --> 02:35:47,538 for both core stage liquid hydrogen and liquid oxygen. 1270 02:35:47,938 --> 02:35:51,075 The core stage is the first stage of the SLS rocket. 1271 02:35:51,375 --> 02:35:53,110 Here's a great graphic where you can see 1272 02:35:53,110 --> 02:35:56,180 where we currently are at in our tanking operations, 1273 02:35:58,015 --> 02:35:59,650 and you'll see above the core stage. 1274 02:35:59,650 --> 02:36:01,185 We have also started 1275 02:36:01,185 --> 02:36:03,253 our loading operations in the Interim 1276 02:36:03,253 --> 02:36:05,422 Cryogenic Propulsion stage. 1277 02:36:05,422 --> 02:36:08,425 This is the second stage of the SLS rocket. 1278 02:36:09,526 --> 02:36:12,529 Now we have not started loading liquid oxygen yet. 1279 02:36:12,863 --> 02:36:15,065 I'll report out when that is underway, 1280 02:36:15,065 --> 02:36:18,068 but in the meantime we are good with them. 1281 02:36:18,202 --> 02:36:20,304 We are in the process of loading liquid oxygen 1282 02:36:20,304 --> 02:36:22,306 and liquid hydrogen on the core stage, 1283 02:36:22,306 --> 02:36:24,274 and liquid hydrogen on the upper stage. 1284 02:36:26,477 --> 02:36:27,978 I'll report out when we are now 1285 02:36:27,978 --> 02:36:30,981 starting our liquid oxygen operations on the upper stage. 1286 02:37:37,181 --> 02:37:37,981 Welcome back. 1287 02:37:37,981 --> 02:37:39,450 This is Artemis at launch control. 1288 02:37:39,450 --> 02:37:42,085 We're currently eight hours and one minute and counting 1289 02:37:42,085 --> 02:37:45,155 from the opening of today's launch window for the Artemis 1290 02:37:45,222 --> 02:37:46,957 two mission. 1291 02:37:46,957 --> 02:37:49,126 I'm Anthony Jaramillo and NASA communications, 1292 02:37:49,126 --> 02:37:49,560 and I, 1293 02:37:49,560 --> 02:37:50,461 along with our fellow 1294 02:37:50,461 --> 02:37:53,464 commentators, will be taking you through today's countdown. 1295 02:37:53,597 --> 02:37:54,498 And actually joining me 1296 02:37:54,498 --> 02:37:56,633 currently in the room here in Firing Room 1297 02:37:56,633 --> 02:37:59,703 one is our assistant launch director, Jeremy Graver. 1298 02:37:59,736 --> 02:38:01,038 Jeremy, thank you so much 1299 02:38:01,038 --> 02:38:03,073 for taking the time to speak with us today. 1300 02:38:03,073 --> 02:38:05,642 No problem. Good morning. Tony. Happy to be here. 1301 02:38:05,642 --> 02:38:07,444 You know, Jeremy, I think we recently heard 1302 02:38:07,444 --> 02:38:10,848 the call out that our flight crew, our astronauts, 1303 02:38:10,848 --> 02:38:12,483 they just got their wake up call. 1304 02:38:12,483 --> 02:38:13,417 Can you run us through 1305 02:38:13,417 --> 02:38:16,420 kind of what the rest of the day now looks like for them? 1306 02:38:17,020 --> 02:38:17,788 Absolutely. Yeah. 1307 02:38:17,788 --> 02:38:20,757 They were woken up, just a little while ago. 1308 02:38:20,757 --> 02:38:22,192 They'll get up, 1309 02:38:22,192 --> 02:38:25,729 as most of us do on a on a busy, exciting day. 1310 02:38:26,029 --> 02:38:27,798 Get up. They'll get their breakfast. 1311 02:38:27,798 --> 02:38:30,801 They'll they'll kind of get into the groove of the day. 1312 02:38:30,801 --> 02:38:33,904 They'll go through, multiple meetings and discussions 1313 02:38:33,904 --> 02:38:36,540 just to understand, where we are. 1314 02:38:36,540 --> 02:38:37,307 In a little while, 1315 02:38:37,307 --> 02:38:40,611 the launch director and our flight director will, 1316 02:38:40,677 --> 02:38:43,614 provide a weather briefing for the flight crew 1317 02:38:43,614 --> 02:38:44,314 to talk about 1318 02:38:44,314 --> 02:38:47,651 all of the weather potentials that could, play into today's, 1319 02:38:48,619 --> 02:38:50,220 launch opportunity. 1320 02:38:50,220 --> 02:38:52,756 Once that's complete, they will, 1321 02:38:52,756 --> 02:38:55,859 then start getting suited up and they'll head 1322 02:38:55,859 --> 02:38:58,962 to the suit room, start doing all their preparations from 1323 02:38:58,962 --> 02:39:02,132 a, a suit up perspective as that's completed. 1324 02:39:02,833 --> 02:39:04,701 They'll be checking with us to make sure that, 1325 02:39:04,701 --> 02:39:06,837 we're ready for them to come to the pad, 1326 02:39:06,837 --> 02:39:08,605 and then they'll be on their way. 1327 02:39:08,605 --> 02:39:11,608 Headed out to the pad in the Astro van, 1328 02:39:11,708 --> 02:39:13,677 ready to get out to Launch Pad 39. 1329 02:39:13,677 --> 02:39:15,212 B, get up on 1330 02:39:15,212 --> 02:39:18,582 top of the mobile launcher onto the two 74ft level. 1331 02:39:18,882 --> 02:39:20,117 Go across the crew access 1332 02:39:20,117 --> 02:39:23,921 arm into the white room and enter the Orion spacecraft. 1333 02:39:23,921 --> 02:39:26,924 So we're really excited for the for those events later today. 1334 02:39:27,257 --> 02:39:27,724 It is. 1335 02:39:27,724 --> 02:39:30,127 It's a very busy and exciting day like you mentioned. 1336 02:39:30,127 --> 02:39:32,162 I hope they got some good rest and didn't, you know, 1337 02:39:32,162 --> 02:39:34,131 wake up a bunch of times throughout the night? 1338 02:39:34,131 --> 02:39:35,532 I know, I certainly did. 1339 02:39:35,532 --> 02:39:39,336 But just because of pure excitement like you mentioned. 1340 02:39:39,503 --> 02:39:42,105 Now let's shift focus back on the rocket. 1341 02:39:42,105 --> 02:39:44,141 How's propellant loading going? 1342 02:39:44,141 --> 02:39:46,009 Everything is going very well right now. 1343 02:39:46,009 --> 02:39:50,447 As I, stepped off console to come in here, the core stage 1344 02:39:50,847 --> 02:39:54,318 two tank was about 95%, loaded. 1345 02:39:54,952 --> 02:39:57,020 The upper stage is probably about halfway 1346 02:39:57,020 --> 02:40:00,023 and moving towards their, completion for H2. 1347 02:40:00,090 --> 02:40:02,826 The liquid oxygen side of the core stage 1348 02:40:02,826 --> 02:40:05,028 is in fast fill as well. And, 1349 02:40:06,063 --> 02:40:07,998 proceeding well, and we will be getting 1350 02:40:07,998 --> 02:40:11,268 into the upper stage low to loading in a little while. 1351 02:40:11,268 --> 02:40:14,771 So all things moving, per schedule and, 1352 02:40:14,771 --> 02:40:18,342 and working towards that, that plan for the day. 1353 02:40:18,976 --> 02:40:19,977 That is great news. 1354 02:40:19,977 --> 02:40:21,645 And actually, I think we just heard that 1355 02:40:21,645 --> 02:40:24,915 they got the, the go for transitioning into that 1356 02:40:24,915 --> 02:40:28,318 liquid hydrogen, on the core stage two topping. 1357 02:40:28,318 --> 02:40:30,887 So like you said, we're getting very close. 1358 02:40:30,887 --> 02:40:33,223 Absolutely. That is exciting, you know. 1359 02:40:33,223 --> 02:40:34,591 So can you tell us a little bit 1360 02:40:34,591 --> 02:40:36,493 then about those upcoming milestones 1361 02:40:36,493 --> 02:40:40,063 once we finish that propellant loading on all four tanks? 1362 02:40:40,464 --> 02:40:40,764 Yeah. 1363 02:40:40,764 --> 02:40:43,567 So it's absolutely critical for us to get into what we call 1364 02:40:43,567 --> 02:40:45,836 stable replenish on all stages. 1365 02:40:45,836 --> 02:40:48,839 And what that means is the liquid oxygen and liquid 1366 02:40:48,839 --> 02:40:50,340 hydrogen tanks on both 1367 02:40:50,340 --> 02:40:54,311 the core stage and the interim cryo propulsion stage, or ICP, 1368 02:40:55,345 --> 02:40:56,713 are fully loaded 1369 02:40:56,713 --> 02:40:59,883 and we are just maintaining that level of of loading. 1370 02:41:00,217 --> 02:41:04,287 And that's a very, quiescent configuration for us. 1371 02:41:04,287 --> 02:41:07,357 And that's required for us to be in that configuration, to then 1372 02:41:07,357 --> 02:41:09,760 be allowed to send the flight crew, 1373 02:41:09,760 --> 02:41:10,727 our close out crew, 1374 02:41:10,727 --> 02:41:13,563 which is there to assist the flight crew, getting on board. 1375 02:41:13,563 --> 02:41:14,831 Orion, 1376 02:41:14,831 --> 02:41:18,068 we need to be in that stable replenish configuration 1377 02:41:18,068 --> 02:41:20,570 to be able to send those crews out to the launchpad. 1378 02:41:20,570 --> 02:41:24,007 And as we send those crews out, that is really, 1379 02:41:24,007 --> 02:41:27,010 our press and our push to to launch. 1380 02:41:27,010 --> 02:41:28,712 We'll get the crew on board. 1381 02:41:28,712 --> 02:41:31,848 They go through a number of checks, communication checks, 1382 02:41:31,848 --> 02:41:33,917 system checks, and then our close up 1383 02:41:33,917 --> 02:41:35,152 crews job is to back 1384 02:41:35,152 --> 02:41:38,288 out of the crew module, close all of our hatches, 1385 02:41:38,422 --> 02:41:40,691 get us in configuration to be able to. 1386 02:41:40,691 --> 02:41:43,427 Then the closeout crew to leave the pad. 1387 02:41:43,427 --> 02:41:44,294 And that puts us 1388 02:41:44,294 --> 02:41:46,363 in, the configuration to allow us 1389 02:41:46,363 --> 02:41:48,398 to proceed through the rest of launch countdown 1390 02:41:48,398 --> 02:41:50,901 as we proceed down to, our final. 1391 02:41:50,901 --> 02:41:52,369 Hold that. T-minus ten minutes. 1392 02:41:52,369 --> 02:41:55,572 Where we do all of our launch polls, and 1393 02:41:56,139 --> 02:41:57,941 determine that we are ready to pick up 1394 02:41:57,941 --> 02:41:59,309 with what we call a terminal count, 1395 02:41:59,309 --> 02:42:02,546 which is from t -ten minutes down to launch at t0. 1396 02:42:03,013 --> 02:42:06,583 And, really excited to get to all of those milestones 1397 02:42:06,583 --> 02:42:08,185 as we proceed through the day. 1398 02:42:08,185 --> 02:42:11,621 We are all very excited or or rooting for you guys 1399 02:42:11,621 --> 02:42:12,823 watching along. 1400 02:42:12,823 --> 02:42:15,459 And as you mentioned, you know, the reason to get to, 1401 02:42:15,459 --> 02:42:18,328 all stages replenish first is because that's, 1402 02:42:18,328 --> 02:42:19,162 that's the point where 1403 02:42:19,162 --> 02:42:20,831 we're at the safest configuration 1404 02:42:20,831 --> 02:42:22,999 to send people back to the launch pad. Correct? 1405 02:42:22,999 --> 02:42:24,267 That is absolutely correct. 1406 02:42:24,267 --> 02:42:26,703 It is, a very stable configuration. 1407 02:42:26,703 --> 02:42:29,906 It's the safe configuration that we require to ensure that, 1408 02:42:30,173 --> 02:42:33,176 we're ready to send those crews out to the pad. 1409 02:42:33,176 --> 02:42:35,178 Jeremy Kramer, thank you so much for taking 1410 02:42:35,178 --> 02:42:38,081 the time to speak with us today, where we're rooting for you. 1411 02:42:38,081 --> 02:42:39,182 Wishing you the best of luck, 1412 02:42:39,182 --> 02:42:40,884 and we'll let you get back on console. 1413 02:42:40,884 --> 02:42:42,552 Excellent. Thank you Tony. Appreciate it. 1414 02:42:42,552 --> 02:42:44,821 Go, Artemis. Go, Artemis. 1415 02:42:47,591 --> 02:42:48,058 All right. 1416 02:42:48,058 --> 02:42:50,026 And so just to quickly recap, we are now 1417 02:42:50,026 --> 02:42:54,030 in our topping phase for liquid hydrogen on the core stage. 1418 02:42:54,197 --> 02:42:57,100 We are still in fast fill on the liquid oxygen side 1419 02:42:57,100 --> 02:42:58,101 for the core stage, 1420 02:42:58,101 --> 02:43:02,005 and also fast fill for the upper stage liquid hydrogen tank. 1421 02:43:02,539 --> 02:43:04,441 I'll report back once we have entered 1422 02:43:04,441 --> 02:43:07,444 our topping phase for liquid oxygen on the core stage. 1423 02:51:31,781 --> 02:51:33,516 This is Artemis launch control. 1424 02:51:33,516 --> 02:51:35,151 We are currently seven hours 1425 02:51:35,151 --> 02:51:38,888 and 47 minutes and counting from the opening of today's 1426 02:51:38,888 --> 02:51:42,091 launch window for NASA's Artemis two mission. 1427 02:51:42,859 --> 02:51:45,662 That launch window opens at 6:24 p.m. 1428 02:51:45,662 --> 02:51:47,497 eastern time this evening. 1429 02:51:47,497 --> 02:51:50,233 Now, the teams do have a two hour launch window. 1430 02:51:50,233 --> 02:51:54,070 So that means if we can't launch right at 624, that's okay. 1431 02:51:54,070 --> 02:51:55,838 They still have an additional two hours 1432 02:51:55,838 --> 02:51:57,674 in which they can attempt to launch. 1433 02:51:58,975 --> 02:51:59,942 Now, currently, the Artemis 1434 02:51:59,942 --> 02:52:01,411 launch team, what you see on your screen 1435 02:52:01,411 --> 02:52:03,479 there they are in the process of loading 1436 02:52:03,479 --> 02:52:07,150 cryogenic or super cold liquid propellant 1437 02:52:07,317 --> 02:52:11,321 onto the SLS or the Space Launch System rocket. 1438 02:52:12,255 --> 02:52:15,258 The teams actually just reported that we have completed 1439 02:52:15,358 --> 02:52:20,263 loading liquid hydrogen onto the core stage of the rocket. 1440 02:52:20,596 --> 02:52:23,499 Now, the core stage is the first stage of that 1441 02:52:23,499 --> 02:52:26,469 SLS rocket. 1442 02:52:26,469 --> 02:52:28,538 There's a great graphic representation 1443 02:52:28,538 --> 02:52:31,841 of where we currently are in our tanking operations. 1444 02:52:32,175 --> 02:52:34,877 So as you see, we are at 100% level 1445 02:52:34,877 --> 02:52:37,880 for the liquid hydrogen tank on the core stage. 1446 02:52:39,048 --> 02:52:41,317 So that means we are now the teams are just going to be 1447 02:52:41,317 --> 02:52:45,355 constantly replenishing that tank as some of that gap us 1448 02:52:45,355 --> 02:52:49,492 as some of that liquid starts boiling off into a gas due 1449 02:52:49,492 --> 02:52:52,862 to the temperatures as it starts warming up. 1450 02:52:53,796 --> 02:52:56,599 So teams will therefore replenish it 1451 02:52:56,599 --> 02:53:00,036 constantly to maintain this 100% flight level. 1452 02:53:01,170 --> 02:53:01,838 Now, as you can see 1453 02:53:01,838 --> 02:53:05,475 right above the hydrogen tanks, that's our liquid oxygen tank 1454 02:53:05,608 --> 02:53:08,711 that's currently 70% of the way filled. 1455 02:53:11,180 --> 02:53:14,617 And then on our upper stage or the interim cryogenic 1456 02:53:14,617 --> 02:53:15,518 propulsion stage, 1457 02:53:15,518 --> 02:53:18,621 this is the rocket stage that sits on top of the core stage. 1458 02:53:18,788 --> 02:53:22,325 We are currently in our fast fill operations for liquid 1459 02:53:22,358 --> 02:53:25,361 hydrogen on that upper stage. 1460 02:53:25,862 --> 02:53:28,865 Teams have not started liquid oxygen 1461 02:53:29,432 --> 02:53:32,001 for the upper stage 1462 02:53:32,001 --> 02:53:33,536 and that is totally normal. 1463 02:53:33,536 --> 02:53:35,004 That is part of the countdown. 1464 02:53:35,004 --> 02:53:35,838 We are scheduled 1465 02:53:35,838 --> 02:53:39,542 to start our upper stage liquid oxygen loading operations 1466 02:53:39,876 --> 02:53:44,046 until we start getting into, so we get much further into our, 1467 02:53:44,881 --> 02:53:47,150 loading operations for the liquid oxygen 1468 02:53:47,150 --> 02:53:50,153 tank on the core stage. 1469 02:53:52,922 --> 02:53:54,190 So again, we are now 1470 02:53:54,190 --> 02:53:57,427 in replenish for the core stage liquid hydrogen tank. 1471 02:53:57,727 --> 02:54:00,563 And we are in fast fill for the liquid oxygen 1472 02:54:00,563 --> 02:54:01,898 tank on the core stage 1473 02:54:01,898 --> 02:54:04,901 and the liquid hydrogen tank on the upper stage. 1474 02:54:05,234 --> 02:54:06,235 On the upper stage. 1475 02:54:08,438 --> 02:54:09,739 Now a quick recap on how 1476 02:54:09,739 --> 02:54:12,975 the whole tanking loading process goes. 1477 02:54:13,509 --> 02:54:16,646 Teams will first start with what is called chill down. 1478 02:54:17,547 --> 02:54:20,950 So prior to us actually starting to load the super cold 1479 02:54:20,950 --> 02:54:22,452 propellant onto the rocket, 1480 02:54:22,452 --> 02:54:26,522 they will first chill down all of the systems and lines. 1481 02:54:26,889 --> 02:54:28,424 This is done to make sure 1482 02:54:28,424 --> 02:54:31,961 that it is able to receive these super cold temperatures. 1483 02:54:32,261 --> 02:54:34,931 In order for hydrogen to be in a liquid state, 1484 02:54:34,931 --> 02:54:39,836 it needs to be -423°F. 1485 02:54:40,570 --> 02:54:46,008 Oxygen in a liquid state is -297°F. 1486 02:54:46,742 --> 02:54:49,545 So very, very cold temperatures. 1487 02:54:49,545 --> 02:54:50,346 And as such, 1488 02:54:50,346 --> 02:54:53,082 we want to make sure that we are conditioning 1489 02:54:53,082 --> 02:54:57,320 all of the systems to be able to receive those cryogenic 1490 02:54:57,320 --> 02:55:00,890 temperatures so that we aren't shocking the hardware 1491 02:55:00,890 --> 02:55:04,994 and we're not causing any potential damage unnecessarily. 1492 02:55:06,662 --> 02:55:09,398 Now, following chill down, we will transition into what 1493 02:55:09,398 --> 02:55:13,002 is called course, into slow fill on the core stage. 1494 02:55:15,738 --> 02:55:18,341 Now, slow fill, as the name suggests, refers 1495 02:55:18,341 --> 02:55:22,712 to slowly starting to feed that propellant onto the rocket. 1496 02:55:23,379 --> 02:55:26,382 This officially marks the start of our propellant loading. 1497 02:55:33,322 --> 02:55:36,158 Teams actually got into slow fill for the liquid 1498 02:55:36,158 --> 02:55:39,161 oxygen and liquid hydrogen tanks on the core stage 1499 02:55:39,161 --> 02:55:42,131 earlier this morning, a little bit before 1500 02:55:43,232 --> 02:55:46,235 9:00 am. 1501 02:55:46,936 --> 02:55:49,138 Following slow fill is then when we transition 1502 02:55:49,138 --> 02:55:50,740 into fast fill, this is where we stay 1503 02:55:50,740 --> 02:55:54,043 for the majority of our tanking loading operations. 1504 02:55:55,211 --> 02:55:56,946 Similarly to slow fill. 1505 02:55:56,946 --> 02:55:59,081 Fast fill refers to loading propellant 1506 02:55:59,081 --> 02:56:01,984 at a much faster rate, 1507 02:56:01,984 --> 02:56:04,987 and that is currently where the liquid oxygen 1508 02:56:05,922 --> 02:56:07,857 tank state is in. 1509 02:56:07,857 --> 02:56:11,561 We are in fast fill for liquid oxygen tank on the core stage. 1510 02:56:13,396 --> 02:56:16,232 Now after fast fill we transition into topping. 1511 02:56:16,232 --> 02:56:18,968 This is the last little bit that is 1512 02:56:18,968 --> 02:56:22,338 needed to fill the tanks to 100% level. 1513 02:56:23,072 --> 02:56:26,042 Hence why we're topping it off. 1514 02:56:26,042 --> 02:56:29,045 Following topping, we are now at 100%. 1515 02:56:29,211 --> 02:56:31,814 And so now we transition into replenish 1516 02:56:31,814 --> 02:56:34,817 mode. 1517 02:56:35,351 --> 02:56:36,986 Replenish just means we're going 1518 02:56:36,986 --> 02:56:40,756 to be constantly replenishing these tanks so that we make sure 1519 02:56:40,756 --> 02:56:43,759 we are again at 100% flight level. 1520 02:56:52,068 --> 02:56:54,337 Now you see on your, on your screen there, 1521 02:56:54,337 --> 02:56:56,739 we can see some venting coming off the rocket. 1522 02:56:56,739 --> 02:57:00,943 This is totally expected as we begin our loading operations, 1523 02:57:01,110 --> 02:57:04,113 some of that liquid propellant starts warming up. 1524 02:57:04,113 --> 02:57:07,183 It'll start to boil off and vent outside of the rocket. 1525 02:57:08,250 --> 02:57:11,387 Hence why we see some of that gas getting, 1526 02:57:11,387 --> 02:57:13,589 getting expanded from down underneath 1527 02:57:13,589 --> 02:57:15,291 where the engines are at the bottom, 1528 02:57:15,291 --> 02:57:16,559 and also a little bit at the top 1529 02:57:16,559 --> 02:57:18,160 where the upper stage is located. 1530 02:57:19,328 --> 02:57:22,331 So again, an expected condition. 1531 02:57:27,403 --> 02:57:30,406 Now let's take you through, the rocket a little bit. 1532 02:57:30,806 --> 02:57:33,809 See, up there on your screen we have the Orion spacecraft. 1533 02:57:33,809 --> 02:57:36,812 Underneath there is the Orion stage adapter. 1534 02:57:37,346 --> 02:57:39,482 The Orion stage adapter is what houses the, 1535 02:57:39,482 --> 02:57:43,152 our secondary payloads or these, scientific cubesats. 1536 02:57:43,486 --> 02:57:46,489 They're shoe boxes, scientific experiments 1537 02:57:47,390 --> 02:57:49,358 that will go to space following separation 1538 02:57:49,358 --> 02:57:50,292 from the upper stage. 1539 02:57:50,292 --> 02:57:53,262 And the spacecraft. 1540 02:57:53,562 --> 02:57:55,297 It's also the smallest section 1541 02:57:55,297 --> 02:57:58,300 of the SLS rocket at only five feet. 1542 02:57:59,001 --> 02:58:01,504 Underneath, the Orion stage adapter sets the interim 1543 02:58:01,504 --> 02:58:04,507 cryogenic propulsion stage, or that second stage. 1544 02:58:07,243 --> 02:58:10,246 Underneath there is our core stage 1545 02:58:10,713 --> 02:58:13,716 or the first stage of the rocket. 1546 02:58:23,759 --> 02:58:25,394 Now the core stage. 1547 02:58:25,394 --> 02:58:27,897 It consists of the propellant tanks, 1548 02:58:27,897 --> 02:58:31,667 a ducts, the valves, avionics, and it also houses 1549 02:58:31,667 --> 02:58:34,937 the four Rs 25 engines that are down there at the bottom, 1550 02:58:36,639 --> 02:58:37,707 next to the core stage, we 1551 02:58:37,707 --> 02:58:40,710 have our two solid rocket boosters. 1552 02:58:41,911 --> 02:58:43,479 Each is taller than the Statue 1553 02:58:43,479 --> 02:58:46,482 of Liberty. 1554 02:58:50,186 --> 02:58:51,053 Now, on those rocket 1555 02:58:51,053 --> 02:58:54,056 boosters, you can see our NASA worm. 1556 02:58:54,790 --> 02:58:58,394 The worm logo spans 25ft end to end, 1557 02:58:59,428 --> 02:59:02,431 or roughly the length of one booster motor segment. 1558 02:59:03,733 --> 02:59:06,869 And we actually have five segments each on each booster. 1559 02:59:07,069 --> 02:59:09,205 So ten segments total. 1560 02:59:09,205 --> 02:59:11,540 It's actually one segment more than what was used 1561 02:59:11,540 --> 02:59:14,543 during the Space Shuttle program. 1562 02:59:16,579 --> 02:59:18,447 Now you should also be able to see some, 1563 02:59:18,447 --> 02:59:21,450 some black and white markings, around the rocket. 1564 02:59:21,650 --> 02:59:24,653 Now, these are used for imagery, for the SLS 1565 02:59:25,354 --> 02:59:28,124 engineering and support team that's based out at NASA's 1566 02:59:28,124 --> 02:59:30,926 Marshall Space Flight Center in Huntsville, Alabama. 1567 02:59:30,926 --> 02:59:34,130 They use this for imagery to track and guide the rocket. 1568 02:59:34,363 --> 02:59:36,232 After liftoff and during ascent. 1569 02:59:38,801 --> 02:59:40,002 And it will also be used in 1570 02:59:40,002 --> 02:59:43,005 their post-flight analysis. 1571 03:00:00,055 --> 03:00:01,991 Now, the orange color of the core stage 1572 03:00:01,991 --> 03:00:03,759 is the thermal protection system. 1573 03:00:03,759 --> 03:00:06,762 Or that spray on foam insulation. 1574 03:00:08,297 --> 03:00:10,132 Now this provides the thermal protection 1575 03:00:10,132 --> 03:00:13,135 for every part of the rocket. 1576 03:00:17,740 --> 03:00:20,676 And when the foam is applied, it gives the rocket this light 1577 03:00:20,676 --> 03:00:24,880 yellow color that the sun's ultraviolet rays eventually tan, 1578 03:00:25,381 --> 03:00:29,118 giving our SLS rocket its famous butterscotch 1579 03:00:29,118 --> 03:00:32,121 color. 1580 03:00:40,963 --> 03:00:41,530 So again, 1581 03:00:41,530 --> 03:00:44,533 to quickly recap, we are in replenish mode 1582 03:00:44,700 --> 03:00:47,703 for the core stage liquid hydrogen tank. 1583 03:00:48,137 --> 03:00:51,307 We are about 75% of the way filled on our liquid 1584 03:00:51,307 --> 03:00:52,074 oxygen tank. 1585 03:00:52,074 --> 03:00:55,077 On the core stage. 1586 03:00:55,077 --> 03:00:57,012 But we're still in fast fill. 1587 03:00:57,012 --> 03:00:59,715 I'll let you know when we transition into topping 1588 03:00:59,715 --> 03:01:00,583 for the core stage. 1589 03:01:00,583 --> 03:01:02,985 Liquid oxygen tank. 1590 03:01:02,985 --> 03:01:05,588 And then on the upper stage, teams are also in fast 1591 03:01:05,588 --> 03:01:06,989 fill for liquid hydrogen, 1592 03:01:07,957 --> 03:01:09,258 and they have not started the 1593 03:01:09,258 --> 03:01:12,628 liquid oxygen operations on the upper stage yet. 1594 03:01:14,163 --> 03:01:16,532 I'll make sure to report out all of these milestones 1595 03:01:16,532 --> 03:01:19,535 as they're underway. 1596 03:08:17,452 --> 03:08:19,121 This is Artemis launch control. 1597 03:08:19,121 --> 03:08:20,789 We are currently seven hours 1598 03:08:20,789 --> 03:08:24,059 and 30 minutes and counting from the opening of today's 1599 03:08:24,059 --> 03:08:27,062 launch window for the Artemis two mission. 1600 03:08:27,329 --> 03:08:29,965 That launch window opens at 6:24 p.m. 1601 03:08:29,965 --> 03:08:30,899 Eastern Time. 1602 03:08:30,899 --> 03:08:33,769 And teams do have a two hour launch window, 1603 03:08:33,769 --> 03:08:34,369 which means that 1604 03:08:34,369 --> 03:08:37,506 if we don't launch right at the beginning at 624, 1605 03:08:37,506 --> 03:08:38,140 they do have 1606 03:08:38,140 --> 03:08:41,143 an additional two hours in which they can attempt to launch. 1607 03:08:41,943 --> 03:08:44,713 Our launch team is currently in Firing Room one at NASA's 1608 03:08:44,713 --> 03:08:47,549 Kennedy Space Center in Florida, and are in the process 1609 03:08:47,549 --> 03:08:51,420 of loading cryogenic or super cold liquid propellant 1610 03:08:51,520 --> 03:08:54,690 onto the SLS or the Space Launch System rocket. 1611 03:09:00,362 --> 03:09:01,163 Now, teams did 1612 03:09:01,163 --> 03:09:06,101 just complete a fast fill for the liquid hydrogen tank on 1613 03:09:06,101 --> 03:09:10,205 the upper stage, or our interim cryogenic propulsion stage. 1614 03:09:10,772 --> 03:09:14,776 Now, fast fill refers to loading propellant at a faster rate. 1615 03:09:14,943 --> 03:09:18,747 This is preceded by chill down, which gets the system ready 1616 03:09:18,747 --> 03:09:21,750 to receive these super cold temperatures. 1617 03:09:21,783 --> 03:09:23,118 And then following fast fill. 1618 03:09:23,118 --> 03:09:26,121 Teams will then transition into topping and replenish. 1619 03:09:26,455 --> 03:09:27,823 I'll get more into those. 1620 03:09:27,823 --> 03:09:29,825 But before that 1621 03:09:29,825 --> 03:09:33,161 again we just finish fast fill for the liquid 1622 03:09:33,195 --> 03:09:35,330 hydrogen tank on the upper stage, 1623 03:09:35,330 --> 03:09:38,300 and teams are now performing before they start topping 1624 03:09:38,300 --> 03:09:41,303 what is called a vented relief test. 1625 03:09:42,571 --> 03:09:44,740 This test is basically just pressurizing 1626 03:09:44,740 --> 03:09:46,842 the upper stage tanks with helium 1627 03:09:46,842 --> 03:09:50,645 to test the relief capabilities of the tank pressure 1628 03:09:50,712 --> 03:09:53,815 to make sure that it can handle that pressure capability 1629 03:09:53,815 --> 03:09:54,950 during flight. 1630 03:09:56,118 --> 03:09:58,253 So between fast fill and topping, 1631 03:09:58,253 --> 03:10:01,390 teams will perform this test on both the liquid hydrogen 1632 03:10:01,390 --> 03:10:04,393 and the liquid oxygen tanks on the upper stage. 1633 03:10:05,327 --> 03:10:08,096 Following that test completion, we will then transition 1634 03:10:08,096 --> 03:10:11,933 into topping, which just means finishing loading 1635 03:10:12,100 --> 03:10:15,103 the rest of the tank to 100%. 1636 03:10:18,106 --> 03:10:19,040 Following topping 1637 03:10:19,040 --> 03:10:22,043 wing topping, we enter what is called replenish mode. 1638 03:10:25,180 --> 03:10:27,282 Which basically just means that now 1639 03:10:27,282 --> 03:10:31,153 we are going to be replenishing these tanks at a 100% level, 1640 03:10:31,386 --> 03:10:33,889 because as we naturally get throughout the countdown, 1641 03:10:33,889 --> 03:10:36,124 that propellant is going to start warming up 1642 03:10:36,124 --> 03:10:38,260 and it'll start boiling and venting off. 1643 03:10:38,260 --> 03:10:41,263 As you can see on your screen there what is happening. 1644 03:10:42,130 --> 03:10:44,199 So because of that, and because the teams 1645 03:10:44,199 --> 03:10:44,833 want to make sure 1646 03:10:44,833 --> 03:10:49,438 that they still have 100% level in all four tanks, 1647 03:10:49,438 --> 03:10:52,240 the two on the upper stage and the two on the, core stage, 1648 03:10:52,240 --> 03:10:54,376 or the first stage of the rocket. 1649 03:10:54,376 --> 03:10:57,746 They continuously replenish the tanks 1650 03:10:57,746 --> 03:11:00,816 until the final ten minutes of the launch countdown, 1651 03:11:01,183 --> 03:11:03,185 or what is known as terminal count. 1652 03:11:07,222 --> 03:11:10,692 Now, speaking of replenish mode, we are currently in replenish 1653 03:11:10,692 --> 03:11:13,695 mode for the core stage liquid hydrogen tank. 1654 03:11:13,995 --> 03:11:15,764 So you're just talking about how we finished 1655 03:11:15,764 --> 03:11:18,767 fast fill on the upper stage liquid hydrogen tank. 1656 03:11:18,800 --> 03:11:22,571 We are also then in replenish mode for the core stage 1657 03:11:22,571 --> 03:11:25,574 liquid hydrogen tank. 1658 03:11:27,008 --> 03:11:30,245 On the liquid oxygen side we are still in fast 1659 03:11:30,245 --> 03:11:33,248 fill for the core stage, liquid oxygen. 1660 03:11:34,516 --> 03:11:35,517 And then on the upper stage. 1661 03:11:35,517 --> 03:11:39,321 We haven't started those liquid oxygen operations yet. 1662 03:11:40,055 --> 03:11:40,989 The teams want to wait 1663 03:11:40,989 --> 03:11:42,057 until we are a little bit 1664 03:11:42,057 --> 03:11:45,160 further along in the core stage liquid oxygen 1665 03:11:45,160 --> 03:11:46,161 loading operations. 1666 03:11:46,161 --> 03:11:49,164 Before we transition into that upper stage 1667 03:11:49,798 --> 03:11:52,801 loading operation. 1668 03:11:56,471 --> 03:11:56,771 Now, in 1669 03:11:56,771 --> 03:12:01,009 total, the SLS and Orion rocket and Orion spacecraft 1670 03:12:01,009 --> 03:12:04,012 are 322ft tall. 1671 03:12:06,848 --> 03:12:08,083 At liftoff, 1672 03:12:08,083 --> 03:12:13,688 SLS produces 8.8 million pounds of thrust. 1673 03:12:23,932 --> 03:12:25,800 A little bit more than our 1674 03:12:25,800 --> 03:12:28,303 the Saturn five rocket that was used during the Apollo 1675 03:12:28,303 --> 03:12:32,173 missions, which were roughly 7.5 million pounds of thrust 1676 03:12:32,574 --> 03:12:35,577 to send those astronauts to the moon. 1677 03:12:42,517 --> 03:12:44,052 With our SLS rocket, though, 1678 03:12:44,052 --> 03:12:46,021 you don't just have those liquid oxygen, 1679 03:12:46,021 --> 03:12:49,357 those liquid, fuel tanks that are fueling the rocket, 1680 03:12:49,357 --> 03:12:51,493 but you also have two solid rocket boosters 1681 03:12:51,493 --> 03:12:53,161 that are attached on either side. 1682 03:12:53,161 --> 03:12:56,164 You see there on your screen right there. 1683 03:12:57,332 --> 03:12:59,834 They also help provide that extra push 1684 03:12:59,834 --> 03:13:02,837 and that thrust right at liftoff. 1685 03:13:12,013 --> 03:13:14,115 Now let's go up a little bit on the rocket. 1686 03:13:14,115 --> 03:13:16,351 Go back to our upper or our second stage, 1687 03:13:16,351 --> 03:13:18,753 our interim cryogenic propulsion stage. 1688 03:13:18,753 --> 03:13:20,188 For those that have been following us 1689 03:13:20,188 --> 03:13:21,990 along since Artemis one, 1690 03:13:21,990 --> 03:13:25,093 you might remember that the Interim cryogenic Propulsion 1691 03:13:25,093 --> 03:13:28,730 Stage for Artemis one provided the big push to send 1692 03:13:28,730 --> 03:13:32,901 the Orion spacecraft on its way to the moon for Artemis two. 1693 03:13:32,901 --> 03:13:35,337 However, it's going to be a little different. 1694 03:13:35,337 --> 03:13:39,307 And the reason for that is because Artemis two is NASA's 1695 03:13:39,307 --> 03:13:41,743 first crewed test flight, 1696 03:13:41,743 --> 03:13:42,877 meaning we are sending 1697 03:13:42,877 --> 03:13:46,615 astronauts on board this rocket for the first time. 1698 03:13:46,915 --> 03:13:50,485 And because of that, we are going to have the capability 1699 03:13:50,485 --> 03:13:51,453 to practice 1700 03:13:51,453 --> 03:13:54,723 a bunch of different systems and tests and operations 1701 03:13:54,723 --> 03:13:57,158 that we couldn't do if it were uncrewed. 1702 03:13:57,158 --> 03:13:58,593 One of these operations is 1703 03:13:58,593 --> 03:14:01,730 what is called the Proximity operation demonstration. 1704 03:14:03,231 --> 03:14:06,301 This involves the upper stage or that interim cryogenic 1705 03:14:06,301 --> 03:14:08,837 propulsion stage and the Orion spacecraft 1706 03:14:08,837 --> 03:14:12,140 practicing proximity maneuvers where they 1707 03:14:12,340 --> 03:14:15,377 where the Orion spacecraft will practice approaching 1708 03:14:15,610 --> 03:14:18,613 and getting away from the upper stage 1709 03:14:18,880 --> 03:14:21,883 in a high Earth orbit. 1710 03:14:23,051 --> 03:14:24,786 The reason teams want to practice 1711 03:14:24,786 --> 03:14:27,022 this is in preparation for Artemis 1712 03:14:27,022 --> 03:14:30,291 three and future Artemis missions for when Orion docks 1713 03:14:30,291 --> 03:14:33,294 with our lunar landing systems. 1714 03:14:34,696 --> 03:14:36,464 And so because of this, this means 1715 03:14:36,464 --> 03:14:38,900 that the interim cryogenic propulsion stage 1716 03:14:38,900 --> 03:14:41,903 will be separating from Orion much sooner. 1717 03:14:44,506 --> 03:14:45,040 Meaning 1718 03:14:45,040 --> 03:14:48,043 that following this demonstration, 1719 03:14:48,043 --> 03:14:51,312 it will be Orion's European service module 1720 03:14:51,312 --> 03:14:52,781 that will actually send 1721 03:14:52,781 --> 03:14:55,884 the spacecraft on its trajectory to the moon. 1722 03:14:56,584 --> 03:14:59,287 It will perform what is called the trans lunar 1723 03:14:59,287 --> 03:15:02,290 injection burn. 1724 03:15:05,427 --> 03:15:07,262 Now, this proximity operation 1725 03:15:07,262 --> 03:15:10,365 is scheduled to happen during the first day of flight. 1726 03:15:10,865 --> 03:15:11,766 So pretty soon 1727 03:15:13,601 --> 03:15:14,869 and NASA will be providing you 1728 03:15:14,869 --> 03:15:18,206 with 24 over seven live coverage starting right now. 1729 03:15:18,206 --> 03:15:18,973 As we have started, 1730 03:15:18,973 --> 03:15:20,308 as we have been 1731 03:15:20,308 --> 03:15:21,776 going through our propellant 1732 03:15:21,776 --> 03:15:23,712 loading operations, and we will continue 1733 03:15:23,712 --> 03:15:25,880 throughout the course of the entire mission, 1734 03:15:25,880 --> 03:15:28,883 including all of the splashdown operations. 1735 03:15:35,090 --> 03:15:35,523 Artemis 1736 03:15:35,523 --> 03:15:39,794 two will send NASA astronauts Reed Wiseman, Victor Glover 1737 03:15:39,794 --> 03:15:43,598 and Christina Cook, and Canadian Space Agency astronaut Jeremy 1738 03:15:43,631 --> 03:15:46,735 Hansen on a ten day mission around the moon and back. 1739 03:15:48,169 --> 03:15:52,073 Orion is scheduled to splashdown off the coast of San Diego 1740 03:15:52,073 --> 03:15:55,076 in the Pacific Ocean. 1741 03:15:58,813 --> 03:16:00,515 So to quickly recap, 1742 03:16:00,515 --> 03:16:03,184 teams are in the process of performing a vent and relief 1743 03:16:03,184 --> 03:16:06,488 test on the liquid hydrogen tank on the upper stage 1744 03:16:07,155 --> 03:16:10,391 following finishing their fast fill operations. 1745 03:16:11,059 --> 03:16:13,528 Again, this test is to just test the 1746 03:16:13,528 --> 03:16:15,396 the tanks that they can handle. 1747 03:16:15,396 --> 03:16:18,399 The, the pressure that will be, 1748 03:16:18,466 --> 03:16:20,535 happening during this first day of flight. 1749 03:16:23,404 --> 03:16:24,873 Following this test, it'll 1750 03:16:24,873 --> 03:16:27,809 we will then transition into our topping phase 1751 03:16:27,809 --> 03:16:30,812 on the upper stage liquid hydrogen tank. 1752 03:16:31,346 --> 03:16:34,349 And it will then transition to replenish 1753 03:16:34,349 --> 03:16:35,116 on the core stage. 1754 03:16:35,116 --> 03:16:36,651 Meanwhile, we are still in fast 1755 03:16:36,651 --> 03:16:38,887 fill for the liquid oxygen tank. 1756 03:16:38,887 --> 03:16:41,890 And we are in replenish for liquid hydrogen. 1757 03:16:42,757 --> 03:16:45,059 Now this is a very, 1758 03:16:45,059 --> 03:16:48,329 very big and important milestone to me because again, 1759 03:16:48,329 --> 03:16:49,030 for those that have been 1760 03:16:49,030 --> 03:16:52,033 following us along, especially with Artemis two, 1761 03:16:52,767 --> 03:16:55,570 during our fast fill operations on the core stage liquid 1762 03:16:55,570 --> 03:16:59,741 hydrogen tank during wet dress rehearsal one, that was our, 1763 03:16:59,741 --> 03:17:03,044 first test of this Artemis two moon rocket, 1764 03:17:03,044 --> 03:17:06,047 where we tested loading the propellants on board. 1765 03:17:06,381 --> 03:17:08,917 Teams experienced the liquid hydrogen leak 1766 03:17:08,917 --> 03:17:11,019 shortly after getting into fast build. 1767 03:17:11,019 --> 03:17:12,320 During that first test. 1768 03:17:14,022 --> 03:17:14,422 They then 1769 03:17:14,422 --> 03:17:17,425 performed the second wet dress rehearsal, 1770 03:17:17,725 --> 03:17:20,728 where they did not see any major leaks 1771 03:17:21,930 --> 03:17:22,397 tanking. 1772 03:17:22,397 --> 03:17:24,265 Loading operations went very smoothly 1773 03:17:24,265 --> 03:17:26,768 and it was a very successful test. 1774 03:17:26,768 --> 03:17:28,703 And so it's great to see 1775 03:17:28,703 --> 03:17:31,706 that throughout today's countdown for launch, 1776 03:17:31,873 --> 03:17:34,742 there also weren't any significant issues 1777 03:17:34,742 --> 03:17:36,044 or leaks reported 1778 03:17:36,044 --> 03:17:39,581 during our liquid hydrogen loading phase on the core stage. 1779 03:17:40,315 --> 03:17:43,318 So we are now in replenish mode for liquid hydrogen, 1780 03:17:44,452 --> 03:17:47,455 or about 84% of the way on the liquid oxygen tank. 1781 03:17:48,890 --> 03:17:51,159 And we're also almost there 1782 03:17:51,159 --> 03:17:54,162 on the upper stage for liquid hydrogen. 1783 03:17:54,162 --> 03:17:56,598 Now, I'll report out once liquid oxygen operations 1784 03:17:56,598 --> 03:17:59,601 for the upper stage are also underway. 1785 03:29:48,342 --> 03:29:49,043 Welcome back. 1786 03:29:49,043 --> 03:29:50,711 This is Artemis launch control. 1787 03:29:50,711 --> 03:29:54,281 We are currently seven hours and nine minutes and counting 1788 03:29:54,281 --> 03:29:58,118 from the opening of today's launch window for the Artemis 1789 03:29:58,252 --> 03:29:59,453 two mission. 1790 03:30:02,323 --> 03:30:02,890 Our Artemis 1791 03:30:02,890 --> 03:30:05,993 launch team is currently in the process of loading liquid 1792 03:30:05,993 --> 03:30:09,129 propellant onto the SLES, or Space 1793 03:30:09,129 --> 03:30:12,132 Launch System rocket. 1794 03:30:13,767 --> 03:30:14,201 Teams 1795 03:30:14,201 --> 03:30:17,271 just reported out that we are in our topping phase 1796 03:30:17,838 --> 03:30:20,841 for the upper stage liquid hydrogen tank. 1797 03:30:20,874 --> 03:30:23,677 This means we are almost at 100%, 1798 03:30:23,677 --> 03:30:28,315 if not pretty much there on that upper stage tank. 1799 03:30:29,750 --> 03:30:32,753 The upper stage is the second stage of the SLS rocket. 1800 03:30:33,253 --> 03:30:35,589 Here's a graphic representation where we can see 1801 03:30:35,589 --> 03:30:38,792 where we're currently at in our tanking operations. 1802 03:30:39,693 --> 03:30:42,696 That means we have now 1803 03:30:42,730 --> 03:30:45,733 finished loading our liquid hydrogen 1804 03:30:46,667 --> 03:30:49,136 on both the core stage and the upper stage. 1805 03:30:49,136 --> 03:30:52,473 As I said, we're in that topping phase to get us to 100%. 1806 03:30:55,009 --> 03:30:56,243 And afterwards will then 1807 03:30:56,243 --> 03:30:59,647 transition into replenish mode to stay at 100% level. 1808 03:31:00,147 --> 03:31:01,281 You can see on the core stage, 1809 03:31:01,281 --> 03:31:04,151 we are already at the replenish mode. 1810 03:31:04,151 --> 03:31:06,487 Have you see that 100% level right there? 1811 03:31:12,226 --> 03:31:14,862 And we also just got confirmation that we are also 1812 03:31:14,862 --> 03:31:18,432 in replenish for the upper stage liquid hydrogen tank. 1813 03:31:19,733 --> 03:31:22,336 Now on the liquid oxygen side we still have a little bit 1814 03:31:22,336 --> 03:31:23,270 to go. 1815 03:31:23,270 --> 03:31:26,874 We're almost we're almost there on the liquid oxygen 1816 03:31:26,874 --> 03:31:28,108 tank for the core stage. 1817 03:31:28,108 --> 03:31:31,111 You see roughly 92% of the way filled. 1818 03:31:33,113 --> 03:31:35,716 And we haven't started our liquid oxygen, 1819 03:31:35,716 --> 03:31:39,253 propellant loading operations on the upper stage. 1820 03:31:39,553 --> 03:31:43,357 Teams are getting ready to start chilling down that tank. 1821 03:31:44,925 --> 03:31:47,628 Teams do this to make sure that all of the systems 1822 03:31:47,628 --> 03:31:51,065 and lines are ready to receive these cryogenic temperatures. 1823 03:31:51,331 --> 03:31:54,702 As you can see on your screen, there, for hydrogen 1824 03:31:54,702 --> 03:31:59,573 to stay in a liquid state, it must be -423°F. 1825 03:32:00,040 --> 03:32:04,144 Oxygen, meanwhile, is -297°F. 1826 03:32:04,378 --> 03:32:07,314 So these super, super cold temperatures, 1827 03:32:07,314 --> 03:32:08,782 we want to make sure that the rocket 1828 03:32:08,782 --> 03:32:11,051 is able to receive them without damaging 1829 03:32:11,051 --> 03:32:12,653 any of the hardware on board. 1830 03:32:14,521 --> 03:32:16,090 So we'll start with chilling down 1831 03:32:16,090 --> 03:32:18,559 that, liquid oxygen tank in mind 1832 03:32:18,559 --> 03:32:22,062 before we actually start loading it onto the upper stage. 1833 03:32:27,301 --> 03:32:28,302 I'll report back 1834 03:32:28,302 --> 03:32:31,271 once that step is underway. 1835 03:32:38,779 --> 03:32:42,349 As a reminder, our launch window opens at 6:24 p.m. 1836 03:32:42,349 --> 03:32:44,184 Eastern time this evening. 1837 03:32:44,184 --> 03:32:47,087 Teams do have a two hour launch window, so that means 1838 03:32:47,087 --> 03:32:50,224 if we don't launch right at 624, that is okay. 1839 03:32:50,491 --> 03:32:53,460 They still have additional opportunities 1840 03:32:53,460 --> 03:32:56,463 throughout that two hour launch window. 1841 03:32:57,264 --> 03:33:00,267 Now, NASA is providing 24 over seven live coverage 1842 03:33:00,300 --> 03:33:02,069 throughout this entire mission, beginning 1843 03:33:02,069 --> 03:33:03,771 with our propellant loading operations. 1844 03:33:03,771 --> 03:33:06,774 That is currently underway. 1845 03:33:08,375 --> 03:33:11,411 And as we continue our coverage this morning, we are also, 1846 03:33:11,478 --> 03:33:15,883 and we continue monitoring all of our loading operations. 1847 03:33:16,383 --> 03:33:18,252 We thank you for following us along. 1848 03:33:21,755 --> 03:33:22,990 Part of our live coverage will, 1849 03:33:22,990 --> 03:33:26,059 of course, include our launch this evening. 1850 03:33:26,960 --> 03:33:29,696 That live launch coverage for Artemis two will continue 1851 03:33:29,696 --> 03:33:33,233 right here at the beginning at approximately 12:50 p.m. 1852 03:33:33,233 --> 03:33:34,902 Eastern time. 1853 03:33:34,902 --> 03:33:37,905 You can continue watching on our NASA's YouTube channel 1854 03:33:38,272 --> 03:33:39,239 as well as on NASA. 1855 03:33:39,239 --> 03:33:42,242 Plus. 1856 03:33:44,211 --> 03:33:45,012 And the other NASA 1857 03:33:45,012 --> 03:33:48,015 social media channels. 1858 03:33:51,018 --> 03:33:51,385 Again, 1859 03:33:51,385 --> 03:33:54,388 we are providing 24 over seven live coverage. 1860 03:33:54,454 --> 03:33:57,357 So following launch, the show doesn't end there. 1861 03:33:57,357 --> 03:33:59,827 We have a ten day mission around the moon. 1862 03:33:59,827 --> 03:34:02,629 And then following that, we're coming back home 1863 03:34:02,629 --> 03:34:03,831 and we will be covering 1864 03:34:03,831 --> 03:34:06,834 all of those splashdown operations as well. 1865 03:34:11,505 --> 03:34:13,540 Artemis two is a test flight. 1866 03:34:13,540 --> 03:34:16,810 It is NASA's first crewed Artemis mission 1867 03:34:18,378 --> 03:34:20,714 we will be sending NASA astronauts, 1868 03:34:20,714 --> 03:34:23,717 read Wiseman, who serves as the commander, 1869 03:34:24,751 --> 03:34:28,222 Victor Glover, the pilot, and mission specialist. 1870 03:34:28,222 --> 03:34:29,890 Christina Cook. 1871 03:34:29,890 --> 03:34:32,926 And then we're also sending Canadian Space Agency astronaut 1872 03:34:33,093 --> 03:34:34,661 Jeremy Hansen, 1873 03:34:34,661 --> 03:34:37,497 who serves as the other mission specialist for this mission. 1874 03:34:46,874 --> 03:34:49,443 So to quickly recap, we are in replenish 1875 03:34:49,443 --> 03:34:54,281 for both liquid hydrogen tanks on the core stage 1876 03:34:54,281 --> 03:34:57,417 and the upper stage of our SLS, our Space 1877 03:34:57,417 --> 03:35:00,420 Launch System rocket. 1878 03:35:01,121 --> 03:35:05,392 And we are getting very close to being almost all the way 1879 03:35:05,392 --> 03:35:08,395 full on the liquid oxygen tank in the core stage. 1880 03:35:14,668 --> 03:35:16,336 I'll make sure to report out 1881 03:35:16,336 --> 03:35:19,139 once we start entering, topping for the liquid oxygen 1882 03:35:19,139 --> 03:35:20,474 tank in the core stage. 1883 03:35:20,474 --> 03:35:24,177 Again, that refers to the, the last little bit that is 1884 03:35:24,177 --> 03:35:27,180 needed to get us to a 100%. 1885 03:35:27,381 --> 03:35:30,384 And I'll also make sure to let folks know 1886 03:35:30,550 --> 03:35:34,121 when our chill down operations are in work on the upper stage. 1887 03:35:34,121 --> 03:35:37,090 Liquid oxygen tank. 1888 03:35:37,457 --> 03:35:39,626 As a reminder, all of this propellant 1889 03:35:39,626 --> 03:35:42,663 that is onboard these four tanks, of these two, 1890 03:35:42,663 --> 03:35:46,867 two rocket stages, they feed the engines that are underneath 1891 03:35:47,834 --> 03:35:50,237 and then provide the power and the push 1892 03:35:50,237 --> 03:35:53,707 to send the Orion spacecraft on its voyage 1893 03:35:53,807 --> 03:35:56,810 to the moon. 1894 03:50:00,253 --> 03:50:02,088 This is Artemis launch control. 1895 03:50:02,088 --> 03:50:05,057 We are currently six hours and 49 minutes 1896 03:50:05,057 --> 03:50:06,826 and counting from the opening 1897 03:50:06,826 --> 03:50:10,630 of today's launch window for NASA's Artemis two mission. 1898 03:50:11,130 --> 03:50:14,200 That launch window opens at 6:24 p.m. 1899 03:50:14,200 --> 03:50:15,601 eastern time this evening, 1900 03:50:15,601 --> 03:50:18,337 and we do have a two hour launch window, 1901 03:50:18,337 --> 03:50:19,939 which means that if we don't launch 1902 03:50:19,939 --> 03:50:23,743 right at the start at 6:24 p.m., that is okay. 1903 03:50:23,743 --> 03:50:24,610 Teams still have 1904 03:50:24,610 --> 03:50:28,347 an additional two hours in which they can try to launch the SLS 1905 03:50:28,381 --> 03:50:31,651 or Space Launch System rocket, and the Orion spacecraft. 1906 03:50:33,653 --> 03:50:35,955 Now, the Artemis launch team is currently in the process 1907 03:50:35,955 --> 03:50:37,456 of loading cryogenic 1908 03:50:37,456 --> 03:50:41,961 or super cold liquid propellant onto the SLS rocket. 1909 03:50:43,429 --> 03:50:46,032 We are currently in what is called replenish 1910 03:50:46,032 --> 03:50:50,970 mode for our liquid hydrogen tanks on board the SLS core 1911 03:50:50,970 --> 03:50:54,473 stage and the Interim Cryogenic Propulsion Stage. 1912 03:50:54,707 --> 03:50:57,910 These are the two stages on the SLS rocket. 1913 03:50:59,345 --> 03:51:01,814 Now, replenish mode means that we have finished 1914 03:51:01,814 --> 03:51:05,284 loading hydrogen onboard both of these rock on board 1915 03:51:05,284 --> 03:51:06,686 both of these rocket. 1916 03:51:06,686 --> 03:51:09,589 That means they are at 100% level, 1917 03:51:09,589 --> 03:51:12,325 and teams are just constantly replenishing the tanks 1918 03:51:12,325 --> 03:51:15,328 to make sure that they stay at 100% 1919 03:51:15,761 --> 03:51:18,865 since as throughout the countdown, that liquid 1920 03:51:19,131 --> 03:51:22,902 propellant will start boiling off as it starts warming up, 1921 03:51:23,236 --> 03:51:26,339 and it will then be vented out and released from the rocket. 1922 03:51:28,374 --> 03:51:29,442 Which you can see there 1923 03:51:29,442 --> 03:51:32,411 on your screen. 1924 03:51:42,255 --> 03:51:45,024 Now, on the liquid oxygen side, 1925 03:51:45,024 --> 03:51:49,762 teams are now in topping phase for the core stage liquid oxygen 1926 03:51:49,762 --> 03:51:53,566 tank topping is the in-between state 1927 03:51:53,566 --> 03:51:56,135 of fast fill and replenish mode. 1928 03:51:56,135 --> 03:51:58,938 Fast fill is where we spend the most of the time. 1929 03:51:58,938 --> 03:52:00,072 Loading propellant. 1930 03:52:00,072 --> 03:52:02,441 We load it at a much faster rate. 1931 03:52:02,441 --> 03:52:02,875 Then once 1932 03:52:02,875 --> 03:52:05,978 we reach a certain point, we will transition into topping 1933 03:52:06,112 --> 03:52:09,115 to finish loading the tank to 100%. 1934 03:52:09,882 --> 03:52:12,285 That is now where we are currently at in the core stage 1935 03:52:12,285 --> 03:52:13,586 liquid oxygen tank 1936 03:52:14,921 --> 03:52:16,122 and following topping. 1937 03:52:16,122 --> 03:52:19,125 We then transition into replenish. 1938 03:52:19,458 --> 03:52:22,361 So we're in core stage liquid oxygen topping 1939 03:52:22,361 --> 03:52:25,364 or in topping for the core stage liquid oxygen tank. 1940 03:52:25,731 --> 03:52:27,266 And we are in replenish mode 1941 03:52:27,266 --> 03:52:31,203 for both tanks on the liquid hydrogen, for liquid hydrogen 1942 03:52:31,203 --> 03:52:34,206 on the core stage and the upper stage. 1943 03:52:37,243 --> 03:52:39,845 Now meanwhile, on the liquid oxygen 1944 03:52:39,845 --> 03:52:42,982 tank on the upper stage, teams just reported that they have now 1945 03:52:42,982 --> 03:52:46,152 started to chill down for that upper stage tank. 1946 03:52:46,152 --> 03:52:48,154 This is the first step that is needed 1947 03:52:48,154 --> 03:52:50,189 before we actually start flowing 1948 03:52:50,189 --> 03:52:52,692 and loading that propellant on board. 1949 03:52:52,692 --> 03:52:56,028 The reason this is done is to chill down the systems in line 1950 03:52:56,028 --> 03:52:59,899 so they are ready to receive those super cold temperatures 1951 03:53:00,633 --> 03:53:03,636 and not cause any potential damage 1952 03:53:04,136 --> 03:53:05,171 to the hardware. 1953 03:53:06,472 --> 03:53:08,174 For reference, 1954 03:53:08,174 --> 03:53:12,478 oxygen needs to be -297°F 1955 03:53:12,745 --> 03:53:18,484 to be in a liquid state, and hydrogen -423°F. 1956 03:53:19,652 --> 03:53:23,289 So very, very cold temperatures that the rocket is dealing with 1957 03:53:23,289 --> 03:53:26,292 right now. 1958 03:53:34,333 --> 03:53:36,736 Now again, 1959 03:53:36,736 --> 03:53:39,739 we are underway for the Artemis two mission. 1960 03:53:40,306 --> 03:53:41,874 This is the second 1961 03:53:41,874 --> 03:53:44,877 Artemis mission in the NASA's Artemis program. 1962 03:53:45,878 --> 03:53:48,247 Artemis one was an uncrewed test flight. 1963 03:53:48,247 --> 03:53:51,283 Artemis two will be the first crewed test flight. 1964 03:53:54,453 --> 03:53:55,521 This will be the first time 1965 03:53:55,521 --> 03:53:59,025 we send astronauts on board our Orion spacecraft. 1966 03:53:59,692 --> 03:54:02,995 We'll be sending our commander, Reed Wiseman, our pilot, 1967 03:54:02,995 --> 03:54:07,033 Victor Glover, and mission specialists Christina Cook 1968 03:54:07,033 --> 03:54:10,469 and Jeremy Hansen on a ten day mission around the moon. 1969 03:54:12,738 --> 03:54:14,407 Now, from the rocket side, 1970 03:54:14,407 --> 03:54:18,377 there aren't that many changes from Artemis one to Artemis two. 1971 03:54:19,045 --> 03:54:22,681 Most of the major sections of vessels really remain unchanged. 1972 03:54:22,681 --> 03:54:25,117 Some of the differences are more in the in the details. 1973 03:54:25,117 --> 03:54:28,754 To really just provide our astronauts with a better ride 1974 03:54:30,523 --> 03:54:32,258 in space. 1975 03:54:32,258 --> 03:54:34,293 Some of those include some optical targets 1976 03:54:34,293 --> 03:54:37,363 that are now on the upper stage as visual cues 1977 03:54:37,363 --> 03:54:40,766 during the proximity operation, demonstration. 1978 03:54:42,268 --> 03:54:45,738 This will be a test for the astronauts to practice 1979 03:54:45,738 --> 03:54:50,309 maneuvering Orion and practice approaching the upper stage 1980 03:54:50,309 --> 03:54:53,312 while it's in a high Earth orbit. 1981 03:54:56,315 --> 03:54:58,517 Another improvement for SLS 1982 03:54:58,517 --> 03:55:00,920 was an improved navigation system, 1983 03:55:00,920 --> 03:55:04,090 also communications capability between the ground stations 1984 03:55:04,090 --> 03:55:07,259 and the U.S space for space launch Delta 45, 1985 03:55:07,393 --> 03:55:10,329 which controls the Eastern Range 1986 03:55:10,329 --> 03:55:12,698 that is responsible for kind of helping dictate 1987 03:55:12,698 --> 03:55:14,667 when we are allowed to launch here 1988 03:55:14,667 --> 03:55:17,670 off the Space Coast in Florida. 1989 03:55:26,879 --> 03:55:31,717 Now, all of the four tanks on the upper stage 1990 03:55:31,717 --> 03:55:34,987 and the core stage, they feed the engines that are down below. 1991 03:55:37,723 --> 03:55:40,559 At liftoff, the four Rs 25 engines 1992 03:55:40,559 --> 03:55:43,062 will operate for the first eight minutes during flight, 1993 03:55:45,030 --> 03:55:48,033 the two solid rocket boosters that are on either side, 1994 03:55:48,134 --> 03:55:49,935 those operate for only two minutes, 1995 03:55:49,935 --> 03:55:53,739 and they provide 75% of the power at liftoff. 1996 03:56:08,888 --> 03:56:11,657 So to quickly recap, we are in replenish 1997 03:56:11,657 --> 03:56:14,660 for our both liquid hydrogen tanks. 1998 03:56:15,161 --> 03:56:17,296 We entered topping for the liquid oxygen 1999 03:56:17,296 --> 03:56:18,764 tank on the core stage. 2000 03:56:18,764 --> 03:56:19,632 That means very, 2001 03:56:19,632 --> 03:56:22,668 very soon we'll be in replenish mode for that tank as well. 2002 03:56:23,702 --> 03:56:26,472 And we are in our chill down operations for the liquid oxygen 2003 03:56:26,472 --> 03:56:28,374 tank on the upper stage. 2004 03:56:28,374 --> 03:56:31,377 Pretty soon we will be entering fast fill. 2005 03:56:31,744 --> 03:56:34,747 I'll report out when that is underway. 2006 04:00:37,890 --> 04:00:39,658 This is Artemis launch control. 2007 04:00:39,658 --> 04:00:42,828 We are currently six hours and 38 minutes and counting 2008 04:00:42,828 --> 04:00:44,496 from the opening of today's 2009 04:00:44,496 --> 04:00:47,499 launch window for the Artemis two mission. 2010 04:00:48,300 --> 04:00:51,103 That launch window opens at 6:24 p.m. 2011 04:00:51,103 --> 04:00:53,405 eastern time this evening, and teams do 2012 04:00:53,405 --> 04:00:55,107 have a two hour launch window 2013 04:00:55,107 --> 04:00:58,110 in which they can attempt to launch the SLS or the Space 2014 04:00:58,110 --> 04:01:01,113 Launch System rocket and Orion spacecraft. 2015 04:01:01,346 --> 04:01:04,416 The Artemis launch team is currently loading cryogenic 2016 04:01:04,416 --> 04:01:07,753 or super cold liquid propellant onto SLS. 2017 04:01:09,388 --> 04:01:09,655 We are 2018 04:01:09,655 --> 04:01:14,159 currently in replenish mode for both liquid hydrogen tanks 2019 04:01:14,159 --> 04:01:17,162 on the two stages of our SLS rocket. 2020 04:01:17,896 --> 04:01:20,399 We're still in our topping phase on the core stage 2021 04:01:20,399 --> 04:01:21,800 liquid oxygen tank. 2022 04:01:21,800 --> 04:01:23,502 That means we're just finishing it up. 2023 04:01:23,502 --> 04:01:26,472 You can see there it looks almost all the way full. 2024 04:01:28,540 --> 04:01:30,342 And following that, it will enter into 2025 04:01:30,342 --> 04:01:33,512 what is also into its replenish mode as well. 2026 04:01:35,214 --> 04:01:37,216 The liquid oxygen tank on the upper stage, 2027 04:01:37,216 --> 04:01:40,219 meanwhile, is now in fast fill. 2028 04:01:42,821 --> 04:01:44,656 So that means all four tanks 2029 04:01:44,656 --> 04:01:47,659 are now receiving propellant. 2030 04:01:49,661 --> 04:01:54,233 For. Following fast fill on the liquid oxygen 2031 04:01:54,233 --> 04:01:55,934 tank for the upper stage, 2032 04:01:55,934 --> 04:01:58,337 teams will perform that Benton relief test 2033 04:01:58,337 --> 04:02:00,072 that they also did for the liquid 2034 04:02:00,072 --> 04:02:02,040 hydrogen side on the upper stage. 2035 04:02:02,040 --> 04:02:04,109 This test is again just to test the 2036 04:02:04,109 --> 04:02:06,311 the relief capabilities to make sure 2037 04:02:06,311 --> 04:02:09,281 that the upper stage can handle the, the pressure. 2038 04:02:09,281 --> 04:02:13,752 And that will be introduced at liftoff and during launch. 2039 04:02:18,257 --> 04:02:20,726 Following that, 2040 04:02:20,726 --> 04:02:22,861 it will then enter topping 2041 04:02:22,861 --> 04:02:25,864 and will then go to replenish mode as well. 2042 04:02:26,498 --> 04:02:29,535 Once we are in replenish mode for all tanks, 2043 04:02:31,336 --> 04:02:33,872 that will be the signal to the launch team 2044 04:02:33,872 --> 04:02:35,807 to tell our astronauts 2045 04:02:35,807 --> 04:02:38,744 that they are ready to start heading out to the launch pad 2046 04:02:38,744 --> 04:02:42,080 and get on board their Orion spacecraft. 2047 04:02:46,718 --> 04:02:49,721 Now, Artemis two is a test flight, 2048 04:02:49,788 --> 04:02:52,324 and it is NASA's first 2049 04:02:52,324 --> 04:02:55,327 Artemis crewed mission. 2050 04:02:55,761 --> 04:02:58,664 That means this will be the first time that our astronauts 2051 04:02:58,664 --> 04:03:03,135 are Commander Reid Wiseman, pilot Victor Glover, and mission 2052 04:03:03,135 --> 04:03:06,138 specialists Christina Cook and Jeremy Hansen. 2053 04:03:06,171 --> 04:03:09,341 They will be the first to experience launch and flight 2054 04:03:09,341 --> 04:03:12,311 atop SLS. 2055 04:03:12,945 --> 04:03:14,413 The rocket hits a maximum 2056 04:03:14,413 --> 04:03:18,951 speed of 22,670mph. 2057 04:03:24,590 --> 04:03:28,493 And our astronauts will get to experience the entire ride. 2058 04:03:38,537 --> 04:03:40,038 So to quickly recap, 2059 04:03:40,038 --> 04:03:43,208 we are in replenish mode for both liquid hydrogen tanks. 2060 04:03:43,709 --> 04:03:46,812 We are in topping, meaning we are finishing up 2061 04:03:46,812 --> 04:03:49,781 to, loading liquid oxygen on the core stage. 2062 04:03:49,781 --> 04:03:51,650 That is the first stage of the rocket, 2063 04:03:51,650 --> 04:03:52,918 and we are in fast fill 2064 04:03:52,918 --> 04:03:55,120 for the liquid oxygen tank on our second stage, 2065 04:03:55,120 --> 04:03:58,123 or that interim cryogenic propulsion stage. 2066 04:04:01,093 --> 04:04:02,060 I'll report out once 2067 04:04:02,060 --> 04:04:05,130 we have also entered replenish mode for the core stage. 2068 04:04:05,130 --> 04:04:08,133 Liquid oxygen tank. 2069 04:16:26,604 --> 04:16:29,273 This is Artemis launch control. 2070 04:16:29,273 --> 04:16:32,443 We are currently six hours and 22 minutes 2071 04:16:32,443 --> 04:16:35,980 and counting from the opening of today's launch window 2072 04:16:36,247 --> 04:16:39,250 for the Artemis two mission. 2073 04:16:40,218 --> 04:16:42,520 The launch team is currently in the process of loading 2074 04:16:42,520 --> 04:16:46,491 cryogenic or super cold liquid propellant onto the SLES 2075 04:16:46,491 --> 04:16:48,493 or the Space Launch System rocket. 2076 04:16:51,529 --> 04:16:54,432 We're currently in replenish mode for both liquid 2077 04:16:54,432 --> 04:16:57,034 hydrogen tanks on both the first stage 2078 04:16:57,034 --> 04:17:00,037 and the second stage of the rocket. 2079 04:17:03,674 --> 04:17:05,476 And then on the liquid oxygen side, 2080 04:17:05,476 --> 04:17:08,413 we are in fast fill 2081 04:17:08,413 --> 04:17:11,382 for the liquid oxygen tank on the upper stage. 2082 04:17:12,350 --> 04:17:15,653 And then we are getting ready to get into our replenish 2083 04:17:15,653 --> 04:17:18,289 mode for the liquid oxygen tank on the core stage. 2084 04:17:18,289 --> 04:17:21,292 We are still in that topping phase, 2085 04:17:22,160 --> 04:17:25,163 finishing loading the propellant 2086 04:17:25,630 --> 04:17:28,633 tank to 100%, 2087 04:17:28,966 --> 04:17:32,069 at which point then teams will transition into replenish 2088 04:17:32,069 --> 04:17:33,771 mode as well. 2089 04:17:33,771 --> 04:17:36,340 Which just means that we are going to constantly 2090 04:17:36,340 --> 04:17:39,710 be replenishing these tanks at 100% level. 2091 04:17:43,214 --> 04:17:44,081 Now, today's launch 2092 04:17:44,081 --> 04:17:47,051 window opens at 6:24 p.m.. 2093 04:17:49,454 --> 04:17:52,023 Teams do have a two hour launch window, 2094 04:17:52,023 --> 04:17:55,026 which means if we don't launch right on time, 2095 04:17:55,226 --> 04:17:56,928 they do have an additional two hours 2096 04:17:56,928 --> 04:17:58,396 in which they can attempt to launch. 2097 04:18:01,232 --> 04:18:02,800 For those of you just joining us, 2098 04:18:02,800 --> 04:18:05,770 NASA will be providing 24 over seven live coverage 2099 04:18:05,770 --> 04:18:08,306 of this entire mission, starting with our propellant 2100 04:18:08,306 --> 04:18:11,309 loading operations that are currently underway. 2101 04:18:14,078 --> 04:18:15,246 Thank you so much for everyone 2102 04:18:15,246 --> 04:18:18,249 that's been following along. 2103 04:18:20,051 --> 04:18:22,720 Our live launch coverage of Artemis two will continue 2104 04:18:22,720 --> 04:18:25,923 right here, beginning at approximately 12:50 p.m.. 2105 04:18:31,028 --> 04:18:34,332 Where the rest of my NASA commentators will be chiming 2106 04:18:34,332 --> 04:18:37,301 in on how the rest of today's countdown goes 2107 04:18:38,369 --> 04:18:40,505 and will take you through 2108 04:18:40,505 --> 04:18:43,508 the rest of the mission. 2109 04:18:51,782 --> 04:18:54,552 Now, Artemis two is a test flight. 2110 04:18:54,552 --> 04:18:57,522 It will be the first mission that sends 2111 04:18:58,456 --> 04:19:01,459 astronauts on board SLS 2112 04:19:01,926 --> 04:19:03,861 and Orion. 2113 04:19:03,861 --> 04:19:04,295 You can see 2114 04:19:04,295 --> 04:19:07,431 a photo on your screen there of our Artemis two crew. 2115 04:19:08,199 --> 04:19:10,902 We have our commander, Reed Wiseman, on the right hand side. 2116 04:19:11,969 --> 04:19:12,570 Then we have our two 2117 04:19:12,570 --> 04:19:15,573 mission specialists in the middle, Christina Cook 2118 04:19:15,740 --> 04:19:18,743 and then Canadian Space Agency astronaut Jeremy Hansen. 2119 04:19:19,744 --> 04:19:21,812 All the way on the left is our pilot, Victor 2120 04:19:21,812 --> 04:19:24,815 Glover. 2121 04:19:26,350 --> 04:19:28,486 All four of them woke up 2122 04:19:28,486 --> 04:19:31,822 not too long ago, at around 9:25 a.m. 2123 04:19:31,822 --> 04:19:34,091 this morning. 2124 04:19:34,091 --> 04:19:37,061 Not a terrible wake up call. 2125 04:19:38,162 --> 04:19:40,631 And that time they've been getting ready, 2126 04:19:40,631 --> 04:19:43,601 having breakfast, getting some briefings. 2127 04:19:45,570 --> 04:19:46,971 And they'll get one more briefing. 2128 04:19:46,971 --> 04:19:48,673 It's the flight crew weather brief. 2129 04:19:48,673 --> 04:19:51,475 Well, they'll get a status on where we are in the countdown. 2130 04:19:51,475 --> 04:19:54,478 What the current forecast looks like. 2131 04:19:54,812 --> 04:19:57,815 Following that brief, they will then start their suit 2132 04:19:57,815 --> 04:20:01,752 up operations before they go out to the launch pad. 2133 04:20:02,219 --> 04:20:05,222 And board their spacecraft. 2134 04:20:16,100 --> 04:20:18,736 And teams that report that we have now entered 2135 04:20:18,736 --> 04:20:22,106 replenish mode for the core stage liquid oxygen tank. 2136 04:20:22,340 --> 04:20:25,242 So we are now in replenish for both liquid 2137 04:20:25,242 --> 04:20:28,512 hydrogen tanks on the core stage and the upper stage. 2138 04:20:28,846 --> 04:20:31,849 And we are also in replenish mode for the core stage. 2139 04:20:31,849 --> 04:20:33,184 Liquid oxygen tank. 2140 04:20:37,521 --> 04:20:39,390 On the upper stage liquid oxygen tank 2141 04:20:39,390 --> 04:20:42,393 meanwhile we are still in fast fill 2142 04:20:43,160 --> 04:20:44,328 and I'll report out once. 2143 04:20:44,328 --> 04:20:47,365 Then we transition from fast fill 2144 04:20:48,499 --> 04:20:51,135 until the next up, 2145 04:20:51,135 --> 04:20:54,138 which will again be that Benton relief test. 2146 04:20:54,372 --> 04:20:56,474 This is pressurizing the upper stage tanks 2147 04:20:56,474 --> 04:20:57,408 with helium 2148 04:20:57,408 --> 04:21:00,411 to test the relief capabilities that the tank pressure, 2149 04:21:00,611 --> 04:21:03,848 to make sure that it can handle that capability during flight. 2150 04:21:05,916 --> 04:21:07,918 Following that test, 2151 04:21:07,918 --> 04:21:11,322 teams will then start topping on the liquid oxygen tank 2152 04:21:11,889 --> 04:21:13,157 and will then, after topping, 2153 04:21:13,157 --> 04:21:16,160 will then transition into replenish mode as well. 2154 04:21:22,867 --> 04:21:23,534 I'll report out 2155 04:21:23,534 --> 04:21:26,537 when that's underway. 2156 04:30:18,402 --> 04:30:20,337 This is Artemis launch control. 2157 04:30:20,337 --> 04:30:21,138 We are currently 2158 04:30:21,138 --> 04:30:24,441 six hours and eight minutes and counting from the opening 2159 04:30:24,441 --> 04:30:27,911 of today's launch window for the Artemis two mission. 2160 04:30:28,679 --> 04:30:31,515 Now, the launch window opens at 6:24 p.m. 2161 04:30:31,515 --> 04:30:32,216 eastern time 2162 04:30:32,216 --> 04:30:36,053 this evening, and teams do have a two hour launch window, 2163 04:30:36,220 --> 04:30:37,854 which means that they have two hours 2164 04:30:37,854 --> 04:30:40,290 in which they can try to launch the flares 2165 04:30:40,290 --> 04:30:43,660 or the Space Launch System rocket and Orion spacecraft 2166 04:30:43,860 --> 04:30:46,964 that will send NASA astronauts Reed Wiseman, 2167 04:30:47,698 --> 04:30:50,701 Victor Glover, Christina Cook 2168 04:30:50,867 --> 04:30:53,503 and Canadian Space Agency astronaut Jeremy 2169 04:30:53,503 --> 04:30:56,873 Hansen on a ten day mission around the moon and back. 2170 04:30:58,609 --> 04:30:59,476 Now, the launch team is 2171 04:30:59,476 --> 04:31:02,613 currently in the process of loading cryogenic or super 2172 04:31:02,613 --> 04:31:06,250 cold liquid propellant onto the SLS rocket. 2173 04:31:07,117 --> 04:31:09,286 The propellants that are used to power 2174 04:31:09,286 --> 04:31:12,623 SLS are liquid hydrogen and liquid oxygen. 2175 04:31:14,391 --> 04:31:17,294 We are currently in our replenish phase 2176 04:31:17,294 --> 04:31:21,531 for both liquid hydrogen tanks on the two phases of the rock. 2177 04:31:21,531 --> 04:31:25,435 On the two stages of the rocket that is both the core stage 2178 04:31:25,435 --> 04:31:28,438 and the Interim Cryogenic Propulsion stage. 2179 04:31:29,406 --> 04:31:31,975 Replenish mode just basically means that now 2180 04:31:31,975 --> 04:31:35,145 these tanks are at 100% level, and teams are going 2181 04:31:35,145 --> 04:31:38,982 to constantly be replenishing them as they as 2182 04:31:38,982 --> 04:31:41,084 they start to warm up and boil off, 2183 04:31:41,084 --> 04:31:42,686 you can see some of that gas that's 2184 04:31:42,686 --> 04:31:44,688 being vented off the rocket there. 2185 04:31:44,688 --> 04:31:45,722 That's normal. 2186 04:31:45,722 --> 04:31:47,591 Teams totally expect to see that. 2187 04:31:47,591 --> 04:31:49,059 And because of that, we have 2188 04:31:49,059 --> 04:31:52,162 then a replenish valve to constantly be replenishing 2189 04:31:52,162 --> 04:31:53,897 the tank with that liquid propellant. 2190 04:31:53,897 --> 04:31:57,601 So we make sure that we are 100% level and we're not losing 2191 04:31:57,601 --> 04:31:59,102 any propellants in the tank. 2192 04:32:00,804 --> 04:32:01,672 The reason 2193 04:32:01,672 --> 04:32:03,040 that you see some of that 2194 04:32:03,040 --> 04:32:06,643 venting happening is because as we get throughout the countdown 2195 04:32:06,810 --> 04:32:09,079 and the temperatures start to rise, 2196 04:32:09,079 --> 04:32:11,848 that liquid propellant will become a gas. 2197 04:32:11,848 --> 04:32:13,317 And so it will start boiling off 2198 04:32:13,317 --> 04:32:15,552 and then it will vent outside the rocket. 2199 04:32:15,552 --> 04:32:18,555 Hence the need for a replenish valve. 2200 04:32:20,957 --> 04:32:24,761 So we are in replenish for both liquid hydrogen tanks. 2201 04:32:25,662 --> 04:32:28,332 We are also in replenish for the core stage 2202 04:32:28,332 --> 04:32:31,335 liquid oxygen tank. 2203 04:32:31,535 --> 04:32:34,404 And we are in fast fill for the upper stage 2204 04:32:34,404 --> 04:32:36,773 or that interim cryogenic propulsion stage. 2205 04:32:36,773 --> 04:32:39,276 Liquid oxygen tank. 2206 04:32:39,276 --> 04:32:42,412 Now fast bill is the main portion of our 2207 04:32:42,412 --> 04:32:46,483 propellant loading operations, where teams are actively loading 2208 04:32:46,483 --> 04:32:49,486 that propellant at a much faster rate. 2209 04:32:50,787 --> 04:32:52,622 Now, following fast fill, teams transition 2210 04:32:52,622 --> 04:32:53,924 into what is called topping. 2211 04:32:55,459 --> 04:32:56,493 As the name suggests, 2212 04:32:56,493 --> 04:32:59,496 it just means the top off the tanks. 2213 04:33:00,464 --> 04:33:02,666 And then following topping we enter 2214 04:33:02,666 --> 04:33:05,669 what is replenish. 2215 04:33:06,503 --> 04:33:08,271 So once we are at replenish 2216 04:33:08,271 --> 04:33:10,474 for the liquid oxygen tank on the interim 2217 04:33:10,474 --> 04:33:12,943 cryogenic propulsion stage, we're going to enter 2218 04:33:12,943 --> 04:33:15,946 what is called all stages in replenish. 2219 04:33:17,013 --> 04:33:19,516 This means that all four tanks 2220 04:33:19,516 --> 04:33:22,519 on the SLS rocket are fully fueled, 2221 04:33:23,353 --> 04:33:26,490 and our astronauts are ready then to go 2222 04:33:26,490 --> 04:33:29,092 and head out to the launch pad when they get the go 2223 04:33:29,092 --> 04:33:32,095 from our launch director, Charlie Blackwell Thompson. 2224 04:33:40,737 --> 04:33:41,238 Now, coming up 2225 04:33:41,238 --> 04:33:45,075 shortly, the, our astronauts will be, joining 2226 04:33:45,075 --> 04:33:48,412 in on a flight crew weather brief with our launch director 2227 04:33:48,412 --> 04:33:51,114 as well as with the flight director in Houston 2228 04:33:51,114 --> 04:33:53,350 and the, the launch weather officer. 2229 04:33:53,350 --> 04:33:55,952 They will provide a quick status on how the forecast looks 2230 04:33:55,952 --> 04:33:57,687 for the rest of today's countdown, 2231 04:33:57,687 --> 04:34:01,992 as well as where we currently are in our countdown operations. 2232 04:34:12,269 --> 04:34:14,704 A little earlier, the launch weather officer did 2233 04:34:14,704 --> 04:34:18,041 let our launch director know that we might get some showers 2234 04:34:18,041 --> 04:34:19,342 in about two hours. 2235 04:34:19,342 --> 04:34:21,578 However, there is no lightning threat 2236 04:34:21,578 --> 04:34:24,147 and they will plan on discussing this again during the flight. 2237 04:34:24,147 --> 04:34:27,150 Crew weather brief. 2238 04:34:28,351 --> 04:34:29,052 Currently, teams 2239 04:34:29,052 --> 04:34:32,189 are forecasting 80% go for weather conditions 2240 04:34:32,189 --> 04:34:35,192 during that two hour launch window. 2241 04:34:41,965 --> 04:34:44,534 So again, to quickly recap, we are in replenish 2242 04:34:44,534 --> 04:34:47,537 mode for both liquid hydrogen tanks. 2243 04:34:48,205 --> 04:34:51,007 We are also in a replenish mode on the liquid oxygen 2244 04:34:51,007 --> 04:34:52,075 tank on the core stage. 2245 04:34:52,075 --> 04:34:55,078 That is the first stage of the SLS rocket. 2246 04:34:55,912 --> 04:34:58,181 And we're in fast fill for the liquid oxygen 2247 04:34:58,181 --> 04:35:01,151 tank on the upper stage. 2248 04:35:04,721 --> 04:35:07,424 I'll report out when we have transitioned 2249 04:35:07,424 --> 04:35:10,427 from fast fill and on to topping. 2250 04:56:40,282 --> 04:56:42,050 This is Artemis launch control. 2251 04:56:42,050 --> 04:56:44,753 We are currently five hours and 42 minutes 2252 04:56:44,753 --> 04:56:46,588 and counting from the opening 2253 04:56:46,588 --> 04:56:50,192 of today's launch window for the Artemis two mission. 2254 04:56:50,325 --> 04:56:53,395 That launch window officially opens at 6:24 p.m. 2255 04:56:53,395 --> 04:56:54,830 Eastern Time, and teams 2256 04:56:54,830 --> 04:56:56,865 do have a two hour launch window, 2257 04:56:56,865 --> 04:56:58,100 which means that they have 2258 04:56:58,100 --> 04:57:01,170 additional opportunities if they don't meet the beginning 2259 04:57:01,170 --> 04:57:02,037 of that window. 2260 04:57:03,005 --> 04:57:03,539 Now, joining 2261 04:57:03,539 --> 04:57:07,242 me is Artemis launch director, Charlie Blackwell Thompson. 2262 04:57:07,342 --> 04:57:08,911 Charlie, thank you so much for taking 2263 04:57:08,911 --> 04:57:10,546 the time to speak with us today. 2264 04:57:10,546 --> 04:57:11,680 Oh, you're more than welcome. 2265 04:57:11,680 --> 04:57:13,382 It's great to be here, Tony. 2266 04:57:13,382 --> 04:57:14,449 It sure is. 2267 04:57:14,449 --> 04:57:17,452 Now, we know that, you just conducted a flight crew 2268 04:57:17,452 --> 04:57:19,188 weather brief with our astronauts, 2269 04:57:19,188 --> 04:57:20,355 as well as teams and, 2270 04:57:20,355 --> 04:57:22,391 mission control and our launch weather officer. 2271 04:57:22,391 --> 04:57:23,325 Do you mind providing us 2272 04:57:23,325 --> 04:57:26,395 kind of how that went and, and what we can expect? 2273 04:57:26,628 --> 04:57:29,298 Yes. The weather brief went really well. 2274 04:57:29,298 --> 04:57:30,899 What we do during that weather 2275 04:57:30,899 --> 04:57:32,835 brief is we give the flight crew 2276 04:57:32,835 --> 04:57:36,038 a summary of where we are in our tanking, what's left? 2277 04:57:36,038 --> 04:57:39,575 And of course, we have our core stage and our upper stage 2278 04:57:39,942 --> 04:57:43,111 fully loaded with two, and we're in replenish. 2279 04:57:43,111 --> 04:57:44,880 And we are just finishing up 2280 04:57:44,880 --> 04:57:49,051 our, low to or liquid oxygen load into the upper stage. 2281 04:57:49,051 --> 04:57:52,421 We provided that status, along with any, 2282 04:57:52,754 --> 04:57:55,891 non-conformists that the crew might be interested in. 2283 04:57:55,891 --> 04:57:58,093 And, and then we went through the weather. 2284 04:57:58,093 --> 04:58:01,430 And so our weather from our launch weather officer, 2285 04:58:01,430 --> 04:58:06,134 remains at a, 80%, likelihood of go today 2286 04:58:06,134 --> 04:58:12,107 and a 20% chance of violation, we are watching some precip 2287 04:58:12,107 --> 04:58:14,810 that is making its way toward the pad, but, 2288 04:58:14,810 --> 04:58:17,779 we expect that that is going to dissipate 2289 04:58:17,779 --> 04:58:20,082 as we get closer to the opening of our window. 2290 04:58:20,082 --> 04:58:23,585 So, really good, to hear the crew's voices 2291 04:58:23,585 --> 04:58:25,988 and to talk through, day of launch ops. 2292 04:58:25,988 --> 04:58:28,290 You know, it's something that we simulate, 2293 04:58:28,290 --> 04:58:30,492 but there's nothing like the real day. 2294 04:58:30,492 --> 04:58:32,261 Absolutely. I can only imagine. 2295 04:58:32,261 --> 04:58:35,030 And it's great news to hear that we are still 80% go. 2296 04:58:35,030 --> 04:58:36,865 Those are very, very favorable conditions. 2297 04:58:36,865 --> 04:58:38,467 Let's hope it stays that way. 2298 04:58:38,467 --> 04:58:41,069 You mentioned we're getting closer to reaching 2299 04:58:41,069 --> 04:58:44,506 what is called all stages in, stable replenish. 2300 04:58:44,773 --> 04:58:48,043 That means that we will have all four tanks at 100% 2301 04:58:48,043 --> 04:58:48,977 flight level. 2302 04:58:48,977 --> 04:58:50,679 Charlie, can you walk us through then 2303 04:58:50,679 --> 04:58:52,681 what are some of those upcoming milestones 2304 04:58:52,681 --> 04:58:55,017 once we reach all stages, replenish? 2305 04:58:55,017 --> 04:58:55,951 Absolutely. 2306 04:58:55,951 --> 04:58:59,721 So one of the big milestones when you reach stable, replenish 2307 04:58:59,721 --> 04:59:01,089 on all the, 2308 04:59:01,089 --> 04:59:04,826 all stages is, you begin to send the closeout 2309 04:59:04,826 --> 04:59:05,861 crew into the pad. 2310 04:59:05,861 --> 04:59:09,631 And so we're just a few minutes away from, getting into that, 2311 04:59:09,631 --> 04:59:10,332 and the 2312 04:59:10,332 --> 04:59:13,168 will deploy them to the pad and they'll start getting ready 2313 04:59:13,168 --> 04:59:14,303 for the flight crew. 2314 04:59:14,303 --> 04:59:15,671 And then, of course, shortly after 2315 04:59:15,671 --> 04:59:18,340 that is the exciting milestone of seeing the crew 2316 04:59:18,340 --> 04:59:21,410 walk out of the operations and checkout building 2317 04:59:21,610 --> 04:59:23,145 and make their way to the pad. 2318 04:59:23,145 --> 04:59:24,780 And that's certainly something that, 2319 04:59:24,780 --> 04:59:26,982 we've been waiting a very long time to see. 2320 04:59:26,982 --> 04:59:28,750 It's going to be very exciting, 2321 04:59:28,750 --> 04:59:32,220 I think, for certainly for our team, it'll be exciting for 2322 04:59:32,220 --> 04:59:34,523 our country and it'll be exciting for people 2323 04:59:34,523 --> 04:59:37,693 all over the world who are watching, our crew 2324 04:59:37,693 --> 04:59:38,860 head to the pad 2325 04:59:38,860 --> 04:59:40,028 knowing that we are just 2326 04:59:40,028 --> 04:59:43,799 about five hours or so from from launch. It. 2327 04:59:44,166 --> 04:59:45,467 You couldn't have said it any better. 2328 04:59:45,467 --> 04:59:48,437 This is very exciting for the entire world. 2329 04:59:48,437 --> 04:59:52,040 We cannot wait for that moment when we see the, our astronauts 2330 04:59:52,040 --> 04:59:54,609 depart the crew quarters and head to the pad. 2331 04:59:54,609 --> 04:59:56,878 Charlie, thank you so much for taking the chance to, 2332 04:59:56,878 --> 04:59:59,214 to speak with us today. We are rooting for you. 2333 04:59:59,214 --> 04:59:59,748 We're wishing you 2334 04:59:59,748 --> 05:00:01,483 the best of luck in today's countdown, 2335 05:00:01,483 --> 05:00:03,819 and we'll let you get back on console all right. Thank you. 2336 05:00:03,819 --> 05:00:06,388 Tony, appreciate the opportunity to chat with you. 2337 05:00:06,388 --> 05:00:09,257 And, Go, Artemis. Go. Artemus. 2338 05:00:12,327 --> 05:00:13,528 All right, so to quickly 2339 05:00:13,528 --> 05:00:17,466 recap, we are in replenish mode for both liquid hydrogen tanks. 2340 05:00:17,466 --> 05:00:20,135 And we are getting ready to also hit replenish 2341 05:00:20,135 --> 05:00:23,138 mode on the liquid oxygen tanks for both of those, 2342 05:00:23,205 --> 05:00:26,208 we'll we will report out when that is underway. 2343 05:01:53,595 --> 05:01:55,497 This is Artemis launch control. 2344 05:01:55,497 --> 05:01:58,867 We are currently five hours and 37 minutes and counting 2345 05:01:58,867 --> 05:02:01,937 from the opening of today's launch window 2346 05:02:01,937 --> 05:02:05,173 for NASA's Artemis two mission. 2347 05:02:06,174 --> 05:02:08,110 Now, the launch team is currently in the process 2348 05:02:08,110 --> 05:02:12,581 of loading cryogenic or liquid propellant onto the SLS rocket. 2349 05:02:12,781 --> 05:02:13,715 You see, our launch team, 2350 05:02:13,715 --> 05:02:15,617 they're in Firing room one, and you actually can see 2351 05:02:15,617 --> 05:02:17,786 our NASA administrator, Jared Isaacman. 2352 05:02:17,786 --> 05:02:18,920 He just joined the room 2353 05:02:18,920 --> 05:02:22,090 to greet our launch director, Charlie Blackwell Thompson, 2354 05:02:22,090 --> 05:02:24,593 and our assistant launch director, Jeremy Graver. 2355 05:02:29,164 --> 05:02:30,866 Now to quickly recap, 2356 05:02:30,866 --> 05:02:36,238 we started our propellant loading operations at 8:35 a.m. 2357 05:02:36,238 --> 05:02:37,072 Eastern time. 2358 05:02:37,072 --> 05:02:37,873 That was after 2359 05:02:37,873 --> 05:02:42,077 we had, chilled down the, the core stage systems lines. 2360 05:02:42,344 --> 05:02:45,347 And after we had been given the go from our launch 2361 05:02:45,347 --> 05:02:48,350 director to start our tanking operations. 2362 05:02:48,583 --> 05:02:51,553 So after 835, we started again, slow fill 2363 05:02:52,787 --> 05:02:53,421 a little bit. 2364 05:02:53,421 --> 05:02:56,825 After that, at 925, our astronauts got their 2365 05:02:56,825 --> 05:02:59,828 scheduled wake up call. 2366 05:02:59,828 --> 05:03:02,164 Following slow fill on the core stage. 2367 05:03:02,164 --> 05:03:05,167 We then transitioned into fast fill. 2368 05:03:09,171 --> 05:03:12,174 Once we were in fast fill for the core stage, 2369 05:03:12,941 --> 05:03:15,977 we then started our upper stage loading operations. 2370 05:03:15,977 --> 05:03:18,980 We started first with hydrogen. 2371 05:03:21,283 --> 05:03:23,151 Started chilling down the liquid hydrogen 2372 05:03:23,151 --> 05:03:26,154 tank on the upper stage at roughly 9:36 a.m., 2373 05:03:26,188 --> 05:03:29,090 and then we got into fast fill at 9:51 a.m.. 2374 05:03:32,194 --> 05:03:34,129 Following that, 2375 05:03:34,129 --> 05:03:34,763 we entered. 2376 05:03:34,763 --> 05:03:38,767 Then our topping phase on the core stage 2377 05:03:39,201 --> 05:03:42,003 liquid hydrogen tank 2378 05:03:42,003 --> 05:03:43,939 topping refers to finishing up 2379 05:03:43,939 --> 05:03:46,942 that last little bit to get to 100%, 2380 05:03:47,309 --> 05:03:50,312 and then we transitioned into replenish. 2381 05:03:51,279 --> 05:03:53,949 We did the same thing for the core stage liquid oxygen 2382 05:03:53,949 --> 05:03:55,517 tank, 2383 05:03:55,517 --> 05:03:58,286 as well as for the liquid hydrogen tank on the upper 2384 05:03:58,286 --> 05:04:01,289 stage. 2385 05:04:01,690 --> 05:04:03,959 Now all that's left is to enter replenish mode 2386 05:04:03,959 --> 05:04:06,161 for the liquid oxygen tank on our upper stage, 2387 05:04:06,161 --> 05:04:08,897 and we will enter what is called all stages. 2388 05:04:08,897 --> 05:04:11,099 Replenish. 2389 05:04:11,099 --> 05:04:12,801 This means that now all four tanks 2390 05:04:12,801 --> 05:04:15,804 will be at 100% level. 2391 05:04:18,473 --> 05:04:19,808 Once we reach this stage, 2392 05:04:19,808 --> 05:04:22,444 this will be the signal for our launch team 2393 05:04:22,444 --> 05:04:26,281 to let our astronauts know that they have the clear to enter 2394 05:04:26,281 --> 05:04:29,718 the launch pad and go and enter their spacecraft. 2395 05:04:31,119 --> 05:04:32,354 As a reminder, NASA is 2396 05:04:32,354 --> 05:04:35,357 providing 24 over seven live coverage of this mission. 2397 05:04:35,490 --> 05:04:38,159 We started this morning at 7:45 a.m. 2398 05:04:38,159 --> 05:04:40,729 and ran you through our tanking loading operations, 2399 05:04:40,729 --> 05:04:42,330 and we will continue to do so 2400 05:04:42,330 --> 05:04:45,333 throughout the rest of today's launch countdown. 2401 05:04:45,667 --> 05:04:47,869 We will be beginning our live coverage 2402 05:04:47,869 --> 05:04:50,772 in just a few minutes for that launch, 2403 05:04:50,772 --> 05:04:52,107 and the rest of our commentators 2404 05:04:52,107 --> 05:04:55,110 will make sure to take you along through today's countdown. 2405 05:04:55,343 --> 05:04:58,346 You can see on your screen there how to watch. 2406 05:05:04,152 --> 05:05:05,720 And as our launch director 2407 05:05:05,720 --> 05:05:08,723 just recently said, when she came on air, 2408 05:05:09,457 --> 05:05:11,026 let's go. Artemis two.