Fwd: Antares-ONE Launch Timeline

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From: "Moon, Larry J. (JSC-EA411)" <larry.j.moon@nasa.gov>
Date: April 16, 2013 5:45:50 AM GMT-06:00
To: "Moon, Larry J. (JSC-EA411)" <larry.j.moon@nasa.gov>
Subject: FW: Antares-ONE Launch Timeline

 

 

ANTARES-ONE LAUNCH TIMELINE

Mid-Atlantic Regional Spaceport

 

 

Tuesday                  April 16

 

  CDT               EDT              EVENT

  1:00 pm         2:00 pm       NASA TV: Wallops Flight Facility Briefing

  2:00 pm         3:00 pm       NASA TV: Antares Pre-Launch News Conference

 

Wednesday            April 17

 

  CDT               EDT              EVENT

  7:45 am          8:45 am        Antares-ONE launch "Call to Stations" (~L-8 hrs)

·         Launch window reduced from 3 to 2 hrs at CTS

  8:15 am          9:15 am        Begin launch checklist

  8:30 am          9:30 am        Voice checks

  9:00 am        10:00 am       Range & facility set up (L-7 hrs)

  9:30 am        10:30 am       Pad clear

  9:55 am       10:55 am       Poll: Readiness to init. loading timeline sequencer

·         Begin warm Helium charging

10:00 am       11:00 am       NASA TV: Space Station "Live"

10:00 am       11:00 am       Orbital Commodities Control System (OCCS)

sequencer initiation/warm helium charging (L-6 hrs)

10:05 am       11:05 am       Poll: Launch vehicle external power on

10:10 am       11:10 am       Vehicle power up & systems checks (L-5 hrs, 50 min)

11:05 am       12:05 pm       Poll: Pre-launch processing

12:20 pm         1:20 pm        15-min built-in hold

12:35 pm         1:35 pm        Resume countdown

12:40 pm         1:40 pm       Poll: Readiness to begin LOLS chilldown

  1:00 pm          2:00 pm        Start of Liquid O2 Loading System chilldown (L-3 hrs)

·         High-pressure gaseous nitrogen supply

·         TLS transfer line priming

  2:15 pm          3:15 pm        15-min built-in hold

  2:30 pm          3:30 pm        Resume countdown

  2:30 pm         3:30 pm       Poll: Readiness to begin propellant loading ops

·         Start propellant loading (L-1 hr, 30 min)

·         Launch window reduced to 15 minutes

  3:00 pm         4:00 pm       NASA TV LAUNCH COVERAGE BEGINS

  3:30 pm         4:30 pm       Poll: Proceed w/Main Engine Sys (MES) chilldown

  3:35 pm          4:35 pm        Start engine low flow chilldown

  3:48 pm         4:48 pm       Poll: Proceed with final countdown

  3:50 pm          4:50 pm        Start engine medium flow chilldown (L-10 min)

  3:56:30 pm    4:56:30 pm  Initiate auto sequencer transition (terminal count)

  3:57 pm          4:57 pm        Auto sequencer control

  L-0.5 sec                  Initiation of launch ordnance train

  4:00 pm          5:00 pm        Stage 1 ignition

  L+1.5 sec                 Engine health checks complete

  4:00:02 pm   5:00:02 pm LAUNCH

  4:00:06 pm      5:00:06 pm    Transporter/Erector/Launcher (TEL) clear

  4:03:24 pm      5:03:24 pm    Stage 1 throttle down (+3:24 MET/49.7 statute/7,198 mph)

  4:03:50 pm      5:03:50 pm    Stage 1 shutdown (3:50/66.4 sm/9,847 mph)

  4:03:55 pm      5:03:55 pm    Enable RCS (3:55/70.2 sm/9,849 mph)

  4:03:56 pm      5:03:56 pm    Enable PEG steering (3:56/70.8 sm/9,844 mph)

  4:05:19 pm      5:05:19 pm    Disable RCS for fairing sep (5:19/114 sm/9,507 mph)

  4:05:19 pm      5:05:19 pm    Fairing separation (5:19/114 sm/9,507 mph)

  4:05:21 pm      5:05:21 pm    Re-enable RCS (5:21/115 sm/9,502 mph)

  4:05:24 pm      5:05:24 pm    Disable RCS for interstage sep (5:24/116 sm/9,493 mph)

  4:05:24 pm      5:05:24 pm    Stage 2 interstage sep (5:24/116 sm/9,493 mph)

  4:05:26 pm      5:05:26 pm    Enable upper RCS (5:26/116.7 sm/9,487 mph)

  4:05:28 pm      5:05:28 pm    Stage 2 ignition (5:28/117.4 sm/9,482 mph)

  4:07:58 pm      5:07:58 pm    Stage 2 tail off (7:58/159 sm/16,640 mph)

  4:08:03 pm      5:08:03 pm    Stage 2 coast; orbit insertion (8:03/159 sm/16,703 mph)

  4:08:13 pm      5:08:13 pm    Orient for payload sep (8:13/159 sm/16,707 mph)

  4:10:03 pm      5:10:03 pm    Disable RCS (10:03/158 sm/16,720 mph)

  4:10:03 pm      5:10:03 pm    Cygnus simulator separation (10:03/158 sm/16,720 mph)

  4:18 pm          5:18 pm        End of mission (+18 minutes)

~4:30 pm       ~5:30 pm       PLAYBACK: Launch replays

~4:45 pm         5:45 pm       NASA TV: Senior agency post-launch comments

  5:30 pm         6:30 pm       PLAYBACK: Post-launch news conference

 

END