Monday, December 24, 2012

Dragon CRS-1

 2012-054A


The first Commercial Resupply Services flight was launched in Oct 2012. Launch mass was 7426 kg. No trunk cargo was carried.

The Falcon 9 no. 1 engine failed one minute after launch; the system compensated to reach the correct SECO-1 orbit, using up some of the propellant intended for the second Stage 2 burn. The second burn was automatically cancelled because of the requirement to make sure that any underburn didn't result in an orbit which would re-intersect the ISS, and the Orbcomm secondary payload was ejected in the SECO-1 orbit.


 
 

DateTimeEventOrbit  

2012 Oct 8  0035:07  Launch by Falcon 9 No. 4  CC SLC40 
  T+1:20 Max Q, debris from one first stage engine 
 0038  T+3:00 MECO 
  T+3:05 St 1 sep 
  T+3:12 St 2 burn 
 0039 T +3:52 Nose cone sep 
 0044 T+9:11 SECO 197 x 328 
 0044 T+9:46 St 2sep 
 0047 T+12:20? Solar array deploy 
 0056? SES-2 cancelled 
  SECO-2 
 0137 T+1:02 Orbcomm deploy 
  T+2:26:49 GNC bay door 
2012 Oct 8    89.76 202 x 323 x 51.7 
2012 Oct 10  
  AI burn, 15 min early 
 0849  At R bar 
 0857  At 350m, hold 
 0905  At 320m approaching 
 0912  At 250m hold 
 0916  Go for KOS 
 0948  At 120 m 
 1011  At 30 m hold point 
 1025  Resume app 
 1042 10m hold 
 1056  SSRMS capture 
 1251  First stage capture on Harmony 
 1255  Stage 2 capture underway 
 1303  Stage 2 capture, official install time 
2012 Oct 12? 
  SSRMS ungrapple Dragon 
2012 Oct 24  
  SSRMS grapple Dragon 
2012 Oct 28  
 1107  CBM bolts released 
 1118  SSRMS begin motion 
 1119  Unberth 
 1328:33  Release 
 1331:04  Sep-1 burn 
 1333:40  Sep-2 burn 
 1340:03  Sep-3 burn 
 1343:34  Outside 200m KOS 
 1422s  Orbit adjust, lower apo 
 1423s GNC door closed 
 1828  Deorbit 10:40 burn 
 1838  DO cutoff 
 1841s  Trunk sep 
 1902s  Entry 
 1912s  Parachutes open 
 1922  Splashdown 500mi W of Baja about 123W 28N 

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