Fast Facts: Countdown for Atlantis Launch
Saturday, September 09, 2006
- Share:
Official countdown for NASA's Space Shuttle Atlantis (all times ET):
11:04:55 a.m. Countdown resumes for Terminal Count (T-minus 9 min)
11:06:55 a.m. Orbiter access arm retraction
11:09:55 a.m. APU start
11:10 a.m. Terminate LO2 replenish
11:10:55 a.m. Purge sequence 4 hydraulic test
11:11 a.m. IMUs to inertial
11:11:05 a.m. Aerosurface profile test
11:11:35 a.m. Main engine steering test
11:12:05 a.m. LO2 tank pressurization
11:12:25 a.m. Fuel cells to internal reactants
11:12:30 a.m. Clear caution-and-warning memory
11:12:55 a.m. Crew closes visors
11:12:58 a.m. LH2 tank pressurization
11:14:05 a.m. SRB joint heater deactivation
11:14:24 a.m. Shuttle GPCs take control of countdown (auto sequence start)
11:14:49 a.m. Main engine start (T-6.6 seconds)
11:14:55 a.m. LAUNCH
- Share:
