John F. Kennedy Space Center - Live Launch Coverage

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Live Countdown Coverage
Shuttle Mission STS-108
Orbiter - Endeavour
December 4, 2001

The Countdown Clock is one of the most watched timepieces in the world, and this Live Countdown Coverage page is the only place online to get up-to-the-minute information during a countdown.

Check out our Launch Day video coverage!
Pre-Launch Day videos are also available. All video clips are offered in medium bandwidth (56K) or high bandwidth (cable/broadband) downloadable versions.

Find out more about the STS-108 Mission and Crew.

T-Time	Event Length	Event Begins	Event Concludes
As each milestone is reached, we will activate the appropriate link. Timelines are projected and subject to change at any time during the countdown. Visit the Previous Countdown Events Summary for events that occurred earlier than the T-6 hour hold. "T" stands for scheduled liftoff time, "-" stands for minus, "H" stands for hours, "M" stands for minutes and "S" stands for seconds.

T-06H00M and counting	3 hours	8:50 a.m.	11:50 a.m.
T-03H00M and holding	2 hours	11:50 a.m.	1:50 p.m.
T-03H00M and counting	2 hours 40 minutes	1:50 p.m.	4:30 p.m.
T-20M00S and holding	10 minutes	4:30 p.m.	4:40 p.m.
T-20M00S and counting	11 minutes	4:40 p.m.	4:51 p.m.
T-09M00S and holding	45 minutes (approx.)	4:51 p.m.	5:36 p.m.
T-09M00S and counting	9 minutes	5:36 p.m.	5:45 p.m.
T-0 Liftoff!	The optimum launch time is scheduled for 5:45 p.m.
T+02M02S	SRB Separation
T+08M30S	Main Engine Cut Off (MECO)
T+08M50S	External Tank Separation

Page Last Revised	Page & Curator Information

December 5, 2001

Online Coverage : Dennis Armstrong (NASA) & Anna Heiney (IDI)
Web Development: Lynda Warnock & Debbie Barton (FDC)
Video Production: Wayne Yon, Chris Chamberland, (Photobition)
Countdown Clock by: Jim Fitzgerald (FDC)
NASA Official: Dennis Armstrong (Dennis.Armstrong-1@ksc.nasa.gov)
Web Development: JBOSC Web Development Team
A Service of the NASA/Kennedy Space Center
Roy D. Bridges, Director