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Post Info TOPIC: STS-122 launch


L

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RE: STS-122 launch
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The countdown timeline  (GMT):
19:42 PM...LO2 tank pressurisation
19:42 PM...Fuel cells to internal reactants
19:42 PM...Clear caution-and-warning memory

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L

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The countdown timeline  (GMT):
19:38 PM...Orbiter access arm retraction
19:40 PM...Launch window opens
19:40 PM...Hydraulic power system (APU) start
19:40 PM...Terminate LO2 replenish
19:41 PM...Purge sequence 4 hydraulic test
19:41 PM...Navigation system activated
19:41 PM...Main engine steering test

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L

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All systems go for launch

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L

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sts122ge1
Launch Complex 39 Area

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L

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The countdown timeline  (GMT):
18:41 PM......Backup flight computer to OPS 1
18:45 PM......Area cleared for launch

18:50 PM......T-minus 9 minutes (final built-in hold)
19:21 PM......NTD launch status verification
19:36 PM...T-minus 9 minutes (Countdown resumed)

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L

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The countdown timeline (GMT):
18:30 PM......T-minus 20 minutes (10-minute built-in hold)
18:40 PM......Countdown briefing
18:40 PM......T-minus 20 minutes ((Countdown resumed)

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L

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T minus 26 minutes

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L

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The countdown timeline  (EST):
11:25 AM......Crew ingress
12:15 PM......Comm checks
12:30 PM......Hatch closure
01:10 PM......Whiteroom closeout

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L

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sts122ge8
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sts122ge11
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L

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Geose9
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