launch schedule

By Risa Wechsler | November 16, 2009 10:53 am

Hatch is closed. We are currently at T-45 minutes, but I just learned that there are “holds” in the middle, so we are actually closer to an hour and 36 minutes from launch — launch is at 2:28 pm eastern.

Here’s the full schedule of events:

Monday November 16
12:03 am Clear Launch Pad
12:53 am Fuel cell activation
2:03 am Countdown enters two-hour hold at the T-6 hour mark
2:18 am Clear “Launch Danger Area”
4:30 am Mission Management Team meets to give go for tanking
4:30 am Crew wake up
5:00 am NASA TV: External Tank fueling coverage begins
5:00 am Crew breakfast
5:03 am Countdown resumes at T-6 hour mark
· External Tank loading begins (transfer line “chilldown”)
5:30 am Crew undergoes final medical checks
5:48 am Liquid Hydrogen Low Level Cutoff (LLCO) sensors go “wet”
6:03 am Liquid Hydrogen “fast fill” begins
7:18 am LH2 “topping” begins (gaseous Hydrogen vent valve cycling)
8:03 am Countdown enters 2½ -hour hold (T-3 hour mark)
· ET in stable replenish
· Closeout Crew to White Room
· Final Inspection Team (FIT) “walkdown”
8:30 am Ascent Team on console in Mission Control
9:15 am Crew photo opportunity (taped for playback later)
9:58 am Crew receives weather briefing from Ascent Team
10:08 am Crew suits up for launch
10:33 am Countdown resumes at the T-3 hour mark
10:38 am Crew departs Operations & Checkout Building for launch pad 39A
11:00 am Mission Management Team on console in Launch Control Center
11:08 am Crew begins to board Atlantis
11:28 am T-38 weather reconnaissance (Astronaut Steve Lindsey)
11:58 am Crew communications checks
12:23 pm Atlantis’ hatch is closed and latched for launch
12:43 pm Shuttle Training Aircraft weather recon (Lindsey)
12:28 pm “Video 1” Wolfe Air Aviation Cessna Skymaster 337 takeoff
12:53 pm White Room Closeout
1:13 pm Countdown enters a 10-minute hold at the T-20 minute mark
· Firing Room computer programs verified
· Landing convoy status check
· Abort landing sites checked
· Inertial Measurement Unit preflight alignment verified
· Preps for computer software transition to terminal count
1:23 pm Countdown resumes at the T-20 minute mark
1:34 pm Countdown enters ~45-min. hold at the T-9 minute mark
· MMT conducts final “Go-No Go” poll for launch

– 9:00 2:29:11 pm Countdown resumes at the T-9 minute mark
– 7:30 2:20:41 pm Orbiter Access Arm (OAA) retract
– 6:00 2:22:11 pm Verify Auxiliary Power Units (APU) ready to start
– 5:01 2:23:10 pm Launch window opens
– 5:00 2:23:11 pm Auxiliary Power Unit start
– 4:55 2:53:16 pm Liquid Oxygen replenish terminated
– 4:00 2:24:11 pm Purge Sequence 4 hydraulic test
– 4:00 2:24:11 pm Inertial Measurement Units to inertial
– 3:55 2:24:16 pm Flight Control Surface profile test
– 3:30 2:24:41 pm Main Engine profile test
– 2:55 2:25:16 pm LO2 tank pressurization
– 2:50 2:25:21 pm Gaseous Oxygen Vent Hood retraction
– 2:35 2:25:36 pm Fuel Cells begin using internal reactants
– 2:30 2:25:41 pm Clear caution and warning memory
– 2:00 2:26:11 pm Crew closes visors & initiates oxygen flow
– 1:57 2:26:14 pm Liquid Hydrogen tank pressurization
– 1:40 2:06:31 pm Solid rocket booster joint heater deactivation
– :50 2:27:21 pm Atlantis to internal power
– :31 2:27:40 pm Onboard computers take control of countdown (T-31 sec)
– :21 2:27:50 pm Solid rocket booster steering test
– :06.6 2:28:04 pm Main engine start (T-6.6 seconds)
T-Zero 2:28:11 pm LAUNCH (Space station 225 miles above central South Pacific)

+ 5:00 2:33:11 pm Launch window closes
+ 8:22 2:36:33 pm Main Engine Cutoff (MECO) commanded
+ 8:28 2:36 39 pm Zero thrust – orbit is 136 x 36 statute miles
~2:30 pm 3:30 pm NASA TV: Post launch news conference

You can watch the whole thing on NASA TV if you like.


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