George Diller/GOES-O Launch Commentator: This is Delta Launch Control
at T-85 minutes, 57 seconds and counting.
At this time, we are on schedule for 6:14 p.m. liftoff of the Delta IV rocket
with the GOES-O weather satellite for NASA and NOAA.
United Launch Alliance is conducting our ountdown this afternoon and at this time
is working no technical issues.
At this particular point in time, we are "green" on our weather constraints,
though we are watching some weather approaching from the west.
Forecast that we have is essentially a rerun from yesterday, so it's all going to be a
matter of location and timing of the thunderstorms as we get closer to the opening of
our launch window.
The countdown for the launch of GOES-O began this afternoon at about 12:30.
We are now nearing the completion of the fueling operation of the Delta IV,
which will end at about 4:45 p.m. Eastern time, in less than 15 minutes.
This afternoon, after a weather briefing and "go" to begin tanking,
we began the fueling of the rocket at about 12:30 p.m., actually with propellants,
actually flowing into the rocket starting at about 12:55 p.m.
And once we complete fueling at about 4:45 this afternoon, we'll be topping off
propellants up until our 6:14 p.m. targeted liftoff time.
Upcoming in the launch countdown are the tests of the range safety systems aboard
the rocket, and also the flight slew checks, which are the steering checks of the main
engines aboard each of the two stages of the rocket.
Right now, our forecast for liftoff is calling for broken clouds with a temperature near 83 degrees,
with west-southwesterly winds at 10 to 15 knots and a visibility of seven miles.
We are still holding that 70 percent chance of not meeting our launch weather criteria
and we're watching weather coming across the state to determine the proximity to
Launch Complex 37 at the time of our liftoff at 6:14 p.m.
At T-83 minutes, 17 seconds and counting, this is Delta Launch Control.