WEBVTT 00:00:00.000 --> 00:00:01.000 00:00:01.000 --> 00:00:05.000 GEORGE DILLER: From Launch Complex 39 at the Kennedy Space Center 00:00:05.000 --> 00:00:12.000 in Florida, this is Shuttle Launch Control at T-3 hours and holding. We are 00:00:12.000 --> 00:00:18.000 now in the final six hours of the countdown for the launch of Atlantis on 00:00:18.000 --> 00:00:24.000 mission STS-117, the 21st mission for construction of the International Space 00:00:24.000 --> 00:00:30.000 Station. The countdown is being controlled from Firing Room 4 at the 00:00:30.000 --> 00:00:36.000 Launch Control Center, and right now we are on schedule for liftoff at 7:38 00:00:36.000 --> 00:00:43.000 p.m. Eastern time. STS-117 is planned to last 11 days with two possible 00:00:43.000 --> 00:00:48.000 extension days. Landing is currently planned to occur on Tuesday, June 19, 00:00:48.000 --> 00:00:58.000 at 2:44 p.m. Eastern time. This is the 118th launch of the Space Shuttle 00:00:58.000 --> 00:01:01.000 Program, the 28th launch of Space Shuttle Atlantis and the 19th flight to the 00:01:01.000 --> 00:01:06.000 International Space Station. Astronauts have been living continuously on the 00:01:06.000 --> 00:01:16.000 space station now for the last six-and-a-half years. The launch countdown 00:01:16.000 --> 00:01:20.000 began on schedule here in Firing Room 4 of the Launch Control Center at 00:01:20.000 --> 00:01:28.000 the T-43 hour mark at 9 p.m. on Tuesday, June 5. There are 27 hours, 32 00:01:28.000 --> 00:01:34.000 minutes of built-in hold time in the STS-117 countdown. The countdown 00:01:34.000 --> 00:01:39.000 clock is now in the planned standard three-hour built-in hold and will 00:01:39.000 --> 00:01:46.000 resume counting at 3:42 p.m. The remaining holds are 10 minutes at T-20 00:01:46.000 --> 00:01:52.000 minute mark and 40 minutes at T-9 minute mark. And the Final Inspection 00:01:52.000 --> 00:01:57.000 Team has now been dispatched to the launch pad. That occurred about 15 00:01:57.000 --> 00:02:06.000 minutes ago. And the White Room Closeout Crew also went up to the 00:02:06.000 --> 00:02:14.000 orbiter access hatch, where they will then await the arrival of the astronauts 00:02:14.000 --> 00:02:19.000 and assist them into their seats. In the meantime, they'll be configuring the 00:02:19.000 --> 00:02:26.000 flight deck and the White Room for their arrival. Activities under way 00:02:26.000 --> 00:02:29.000 during the past hour have been the inertial measuring unit preflight 00:02:29.000 --> 00:02:34.000 calibration, the alignment of the MILA tracking station antennas with the 00:02:34.000 --> 00:02:38.000 launch pad, and the final communications checks with the Air Force Eastern 00:02:38.000 --> 00:02:46.000 Range. The Final Inspection Team will be measuring temperatures on the 00:02:46.000 --> 00:02:52.000 surface of the space shuttle, looking for any ice buildup and performing a 00:02:52.000 --> 00:02:57.000 final check for any foreign object debris that could strike the orbiter upon 00:02:57.000 --> 00:03:04.000 ignition. The seven-member team will have walked up and down the entire 00:03:04.000 --> 00:03:08.000 380-foot tower of the fixed service structure, at the conclusion of their 00:03:08.000 --> 00:03:14.000 inspections. At T-3 hours and holding, this is Shuttle Launch Control. 00:03:14.000 --> 00:03:16.000