Wednesday, October 20, 1993

Centaur AC-2

  1963-047A


The second Centaur mission, using Centaur vehicle 2B, was an orbital attempt. The Centaur carried an instrumentation ring on the nose of the Centaur tank. The launch was around 1900 UT on 1963 Nov 27 from Complex 36A at Cape Canaveral. The Atlas burned for around 4 minutes and fell away; the Centaur's RL10 engines ignited on time for its single burn, and entered a 544 x 1699 km x 30.3 deg orbit. This marked the first successful use of a hydrogen-oxygen rocket. After orbital insertion, venting of excess hydrogen caused the stage to tumble, reaching 48 revs per minute within an hour after launch. Around 2230 UT the tumbling caused insulation blankets and nose fairing on the Centaur to be thrown off, resulting in six large debris objects and several smaller ones being tracked.  


AC-2 
 

DateTimeEventOrbit  

1963 Nov 27  1903:23  Launch by AC-2  CC LC36A 
 1905:52  T+2:29 BECO  
 1905:53  T+2:30 Booster sep 
 1907:11  T+3:48 SECO 
 1907:16  T+3:53 VECO 
 1907:16? T+3:53 Atlas sep 190 km 3.31 km/s 
 1907:26  T+4:03 Centaur MES, 6:20  
 1913:46  T+10:23 Centaur MECO 
  Centaur verniers, 12s 
 1913:58  Centaur VECO 
 2030?  Power failed 
  Stage tumbling 
 2230  Insulation blankets separate 
 2230  Nose fairing separates 

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