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Countdown Clock   |   Current Status Report   |   Shuttle Liftoff Status 

  

Shuttle Mission STS-105
Orbiter - Discovery
August 9, 2001

Online coverage will begin at 8:42 a.m. EDT on Thursday, August 9, 2001 as we
enter the T- 06 hour count.
Find out more about the STS-105 Mission and Crew.

image of a pocket watch 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. During the last 9/10 hours prior to scheduled liftoff, you can follow the exact chronology of each and every major event leading up to the successful countdown and liftoff of the Space Shuttle.

Check out our video coverage! Prelaunch videos include the arrival of the crew, their early-morning T-38 practice flights, payload bay operations and a visit to the Space Station Processing Facility. Stay tuned for the latest through liftoff and post-launch activities. Follow the blue button in the Video column below to your choice of a low bandwidth (28.8K), medium bandwidth (56K), or high bandwidth (cable/broadband) downloadable version.

Throughout this web site you will find several links to excerpts from the 1988 NSTS Shuttle Reference Manual. This manual has not been updated since it was originally published and contains some information that is now outdated. None of the thousands of Shuttle upgrades since that time -- like the Shuttle's new glass cockpit -- or organizational and managerial changes since then, are included.  Even so, it is still -- by far -- the most comprehensive resource about the Space Shuttle program available online today.

Note:  To follow along with the launch countdown, monitor the T-Time links in the left column below as they are activated.  The event beginning and conclusion times shown below are projected timelines and subject to change at any time during actual launch countdown.

"T" stands for scheduled liftoff time, "-" stands for minus, "H" stands for hours,
"M" stands for minutes and "S" stands for seconds.

To review recent events that occurred earlier than the T-6 hour hold, go to the Previous Countdown Events Summary.

Projected Countdown Timelines

T-Time Video Length of Event Event Begins Event Concludes
T-43H00M start the clock   16 hours Monday, 8/6/01
5:00 p.m.		 Tuesday, 8/7/01
9:00 a.m.
T-27H00M and holding

 		 8 hours Tuesday, 8/7/01
9:00 a.m.		 Tuesday, 8/7/01
5:00 p.m.
T-27H00M and counting
 		 8 hours Tuesday, 8/7/01
5:00 p.m.		 Wednesday, 8/8/01
1:00 a.m.
T-19H00M and holding   4 hours Wednesday, 8/8/01
1:00 a.m.		 Wednesday, 8/8/01
5:00 a.m.
T-19H00M and counting
  		8 hours Wednesday, 8/8/01
5:00 a.m.		 Wednesday, 8/8/01
1:00 p.m.
T-11H00M and holding blue button blue button   12 hours 42 minutes Wednesday, 8/8/01
1:00 p.m.		 Thursday,
8/9/01
1:42 a.m.
T-11H00M and counting
  		5 hours Thursday,
8/9/01
1:42 a.m.		 Thursday,
8/9/01
6:42 a.m.

T-06H00M and holding

 

2 hours

Thursday,
8/9/01
6:42 a.m.		 Thursday,
8/9/01
8:42 a.m.
Online coverage begins as we reach T-06 hours and counting. As each milestone is reached, we will activate the appropriate link. Follow along with us through the liftoff!
T-06H00M and counting

  		3 hours Thursday,
8/9/01
8:42 a.m.		 Thursday,
8/9/01
11:42 a.m.

T-03H00M and holding

blue button blue button

2 hours

Thursday,
8/9/01
11:42 a.m.

Thursday,
8/9/01
1:42 p.m.
T-03H00M and counting 
blue button blue button

blue button
  		2 hours
40 minutes		 1:42 p.m. 4:22 p.m.

T-20M00S and holding

 

10 minutes

4:22 p.m. 4:32 p.m.
T-20M00S and counting
 
  		11 minutes  4:32 p.m. 4:43 p.m.

T-09M00S and holding

 

46 minutes (approx)

4:43 p.m. 5:29 p.m.
T-09M00S and counting
  		9 minutes 5:29 p.m. 5:38 p.m.

T-0 Liftoff!!!! 

  
 
T+02M02S
 
SRB Separation  
T+08M30S
 
  		Main Engine Cut Off (MECO)  
T+08M50S
 
External Tank Separation  

Total Regular Clock Time = 
72 hours and 38 minutes

43 Hours of Scheduled Countdown Time 
 (+29 hours and 38 minutes of planned holds)

Page Last Revised Page & Curator Information

10-Sep-2001

Online coverage by:  Dennis Armstrong (NASA), Anna Heiney (IDI)
 Web Development: Lynda Warnock & Debbie Barton (FDC)
Video Production:  Russ Alarie (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