Ann: Trading Halt, page-383

LT holder.

I'm ready for take off!

T0 seconds

T-9 minutes and counting

• Start automatic ground launch sequencer
• Retract orbiter access arm (T-7 minutes, 30 seconds)
• Start auxiliary power units (T-5 minutes, 0 seconds)
• Arm solid rocket booster range safety safe and arm devices (T-5 minutes, 0 seconds)
• Start orbiter aerosurface profile test, followed by main engine gimbal profile test (T-3 minutes, 55 seconds)
• Retract gaseous oxygen vent arm, or "beanie cap" (T-2 minutes, 55 seconds)
• Crew members close and lock their visors (T-2 minutes, 0 seconds)
• Orbiter transfers from ground to internal power (T-50 seconds)
• Ground launch sequencer is go for auto sequence start (T-31 seconds)
• Activate launch pad sound suppression system (T-16 seconds)
• Activate main engine hydrogen burnoff system (T-10 seconds)
• Main engine start (T-6.6 seconds)

T-0

• Solid rocket booster ignition and liftoff!

#firstpost #Goodluck #can't sleep