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| Mission History | |
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| Tweet Topic Started: Sep 9 2004, 10:19 AM (312 Views) | |
| Pablicosta | Sep 9 2004, 10:19 AM Post #1 |
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Texas Statesman
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The History Of Lone Star 2, And The Missions It has Flown. |
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| Trecdom | May 4 2009, 08:09 PM Post #2 |
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Countdown: (10 minutes behind LS1) T-3 hours and holding This built-in hold typically lasts two hours. * Perform inertial measurement unit preflight calibration * Align Merritt Island Launch Area (MILA) tracking antennas * Final Inspection Team proceeds to the launch pad to conduct a detailed analysis of the vehicle as the team walks up and down the entire launch tower * Closeout Crew proceeds to the launch pad to configure the crew module for countdown and launch and assist the astronauts with entry into the orbiter T-3 hours and counting * Crew departs for the launch pad and, upon arriving at the pad, begins entry into the orbiter via the White Room * Complete close-out preparations in the launch pad's White Room * Check cockpit switch configurations * Astronauts perform air-to-ground voice checks with Launch Control (Kennedy Space Center) and Mission Control (Johnson Space Center) * Close the orbiter's crew hatch and check for leaks * Complete White Room close-out * Close-out crew retreats to fallback area T-20 minutes and holding This built-in hold typically lasts 10 minutes. * Shuttle Test Director conducts final launch team briefings * Complete inertial measurement unit preflight alignments T-20 minutes and counting * 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 T-9 minutes and holding This is the final built-in hold, and varies in length depending on the mission. * The Launch Director, Mission Management Team and Shuttle Test Director poll their teams for a go/no go for launch 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! |
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| Trecdom | May 4 2009, 08:22 PM Post #3 |
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6:56 PM Jul 10