• VEHICLE: Discovery/OV-103
• LOCATION: Pad 39A
• LAUNCH DATE/*TIME: February 11 at *3:55 a.m.
• LAUNCH WINDOW: 65 minutes
• TARGET KSC LANDING DATE/TIME: February 21 at about 1:30 a.m.
• MISSION DURATION: 9 days, 21 hours, 34 minutes
• CREW: Bowersox, Horowitz, Lee, Hawley, Harbaugh, Smith, Tanner (image)
• ORBITAL ALTITUDE and INCLINATION: 360 statute miles/28.45 degrees

  *change from earlier status

NOTE: The countdown for launch of Discovery continues on schedule for liftoff on Tuesday, Feb. 11. The 65-minute window opens at about 3:55 a.m. The exact window will be announced a few hours before launch and adjusted at the T-9 minute hold based on the final computation of the location of the Hubble Space Telescope. Should launch slip to Wednesday, the launch window would be 3:29 a.m. - 4:30 a.m.

This morning, checks of Discovery’s fuel cells began to evaluate the pH content of the water by-product. Engineers will also continue to evaluate the higher than allowable oxygen readings detected in the orbiter's midbody yesterday after cryogenic loading. Managers are not considering this issue to be a threat to launch or mission at this time but will continue investigations to determine the source.

Last night, the orbiter's mid-body umbilical unit was demated and retracted into the fixed service structure. Final vehicle and facility close-outs have resumed. The rotating service structure was retracted away from Discovery this morning and loading of the external tank with cryogenic propellants will begin at about 7 p.m. tonight.

Air Force weather forecasters are currently indicating a 30 percent probability of weather prohibiting launch on Tuesday and only a 10 percent threat on Wednesday. A disturbance along the Northern Gulf of Mexico continues to move eastward and is expected to merge with a low pressure developing off the southeast coast of Florida this evening and then rapidly move out of the local area. At launch time, the only concern is for low level clouds.

NASA’s two SRB recovery ships left the dock at Hangar AF this morning around 7:30 a.m. and will reach their designated station keeping position late tonight. With an on-time launch and good post launch weather, the ships are expected to sail back into port with boosters in tow Wednesday morning between 6:30 a.m. and 7 a.m.

  T-TIME      LENGTH OF HOLD           HOLD BEGINS         HOLD ENDS
T-27 hours     4 hours                8:00 p.m. Sat.    12:01 a.m. Sun.
T-19 hours     8 hours                8:00 a.m. Sun.     4:00 p.m. Sun.
T-11 hours    13 hours, 34 minutes   12:01 a.m. Mon.     1:35 p.m. Mon.
T-6 hours      1 hour                 6:35 p.m. Mon.     7:35 p.m. Mon.
T-3 hours      2 hours               10:35 p.m. Mon.    12:35 a.m. Tues.
T-20 minutes  10 minutes              3:15 a.m. Tues.    3:25 a.m. Tues.
T-9 minutes   about 10 minutes        3:36 a.m. Tues.    3:46 a.m. Tues.

         Commander (CDR):   Ken Bowersox
             Pilot (PLT):   Scott Horowitz
Mission Specialist (MS1):   Joe Tanner
Mission Specialist (MS2):   Steve Hawley
Mission Specialist (MS3):   Greg Harbaugh
Mission Specialist (MS4):   Mark Lee
Mission Specialist (MS5):   Steve Smith

Monday, Feb. 10 

   7:30 p.m.	 Wake up
   8:00 p.m.	 Breakfast
* 11:21 p.m.	 Lunch and crew photo
  11:51 p.m.	 Weather briefing (CDR, PLT, MS2)
  11:51 p.m.	 Don launch and entry suits (MS1, MS3, MS4, MS5)

Tuesday, Feb. 11 

  12:01 a.m. 	Don launch and entry suits (CDR, PLT, MS2)
* 12:20 a.m. 	Crew suiting photo 
* 12:31 a.m. 	Depart for launch pad 39A
*  1:01 a.m. 	Arrive at white room and begin ingress
*  2:26 a.m. 	Close crew hatch
*  3:55 a.m. 	Launch

* Televised events (times may vary slightly)
All times Eastern

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