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STS-108 Liftoff Status Page

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Shuttle Endeavour Launch Status

Wednesday, December 5, 2001 5:19pm EST (22:19 UTC)

On Wednesday, December 5, 2001, the launch countdown proceeded as scheduled. Tanking began at 7:45am EST and completed shortly after 11:00am EST. At 1:30p.m. EST the astronauts departed the crew quarters in the Operations and Checkout Building (O&C) for the 20 minute ride to Pad 39-B. By 3:00pm. they were strapped in and ready for the terminal count. At 17:12 p.m. EST the Orbiter Access Arm was retracted and launch occured exactly on time at the beginning of the window. Main Engine Cutoff occured at the 8 minute 26 second mark.

On Tuesday, December 4, 2001, the launch was scheduled for 5:45 p.m. EST. The crew left the O&C building, departed for Launch Pad 39-B and entered the orbiter. At 15:40 p.m. EST the hatch was closed and locked for flight. At 16:40 p.m. EST the countdown clock came out of the hold at the T-minus 20 minute mark. After a final poll of the launch team, the mission management team gave a go to countdown to the T-minus 5 minute mark. The only constraint was due to weather. At 17:37 EST, the countdown clock came out of the hold at the T-minus 9 minute mark and counted down to T-minus 5 minutes. A go was given for Orbiter Access Arm retract. At 17:44, STA, RTLS and range were all no-go due to weather constraints and the launch was scrubbed with a 24 hour recycle.

The launch attempt for Thursday, November 29, 2001 (7:44p.m. EST) was delayed to give officials time to analyze a problem with a Russian Progress freighter that is not fully hard docked to the aft port of the Zvezda service module.

Launch preparations for Shuttle Endeavour remain on schedule at Pad B. Ordnance installation and pressurization of the hypergolic propellant system are complete. Work in progress includes final stowage in both the Raffaello Multi-Purpose Logistics Module (MPLM) and the crew compartment. External Tank purge and aft closeouts are under way. No work is scheduled for the Thanksgiving holidays (Thursday-Friday). Over the weekend, the launch crew will begin preparations for picking up the final countdown, scheduled for 11 p.m. Monday, Nov. 26. The seven STS-108 crewmembers will arrive at KSC on Sunday, Nov. 25. (Reference KSC Shuttle Status 11/20/2001)

Shuttle Endeavour remains on schedule for launch on Nov. 29. At Pad B, the STS-108 flight crew participated in the Terminal Countdown Demonstration Test that was completed successfully this morning. The crew will return to Houston this afternoon. Later today, the Raffaello Multi-Purpose Logistics Module (MPLM) will be installed into Endeavour's payload bay. This weekend, pad technicians will replace the yaw actuator arm in Space Shuttle Main Engine (SSME) #2 and preparations will begin for hypergol propellant loading. (Reference KSC Shuttle Status 11/09/01)

Previous launch date was no earlier than January 11, 2001 and
then November 1, 2001.

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Author: Jim Dumoulin ( / NASA - Payload Operations
Last Updated: Tuesday December 18 09:08:16 EDT 2001(J.Dumoulin)

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