投稿日 2000年10月12日(木)02時22分 投稿者 江藤 巌
STS-92のカウントダウンは、たったいまTマイナス3時間で予定通りの2時間のホールドに入った。
推進剤充填作業は完了している。
すでに過去ログに入ってしまっているので、Tマイナス3時間のホールドから打ち上げまでのカウントダウン予定表を再度掲載しておこう。
Enter planned 2-hour built-in hold at T-3 hours
*Perform inertial measurement unit preflight calibration
*Align Merritt Island Launch Area (MILA) tracking antennas
*Perform open loop test with Eastern Range
Resume countdown at T-3 hours
*Crew departs Operations and Checkout Building for the pad
*Complete close-out preparations in the white room
*Check cockpit switch configurations
*Flight crew begins entry into the orbiter
*Astronauts perform air-to-ground voice checks with Launch and Mission Control
*Close Discovery's crew hatch
*Begin Eastern Range final network open loop command checks
*Perform hatch seal and cabin leak checks
*Complete white room close-out
*Close-out crew moves to fallback area
*Primary ascent guidance data is transferred to the backup flight system
Enter planned 10-minute hold at T-20 minutes
*NASA Test Director conducts final launch team briefings
*Complete inertial measurement unit preflight alignments
Resume countdown at T-20 minutes
*Transition the orbiter's onboard computers to launch configuration
*Start fuel cell thermal conditioning
*Close orbiter cabin vent valves
*Transition backup flight system to launch configuration
Enter estimated 45-minute hold at T-9 minutes
*Launch Director, Mission Management Team and NASA Test Director conduct final polls for go/no go to launch
Resume countdown at T-9 minutes
*Start automatic ground launch sequencer (T-9:00 minutes)
*Retract orbiter crew access arm (T-7:30)
*Start mission recorders (T-6:15)
*Start Auxiliary Power Units (T-5:00)
*Arm SRB and ET range safety safe and arm devices (T-5:00)
*Start liquid oxygen drainback (T-4:55)
*Start orbiter aerosurface profile test (T-3:55)
*Start main engine gimbal profile test (T-3:30)
*Pressurize liquid oxygen tank (T-2:55)
*Begin retraction of the gaseous oxygen vent arm (T-2:55)
*Fuel cells to internal reactants (T-2:35)
*Pressurize liquid hydrogen tank (T-1:57)
*Deactivate SRB joint heaters (T-1:00)
*Orbiter transfers from ground to internal power (T-0:50 seconds)
*Ground Launch Sequencer go for auto sequence start (T-0:31 seconds)
*SRB gimbal profile (T-0:21 seconds)
*Ignition of three Space Shuttle main engines (T-6.6 seconds)
*SRB ignition and liftoff (T-0)
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