Friday, December 14, 1990

Surveyor D-2

  1965-064A


The Atlas Centaur AC-6 mission successfully demonstrated the Surveyor direct ascent launch profile and the MA-5 engine. Liftoff was on 1965 Aug 11 at 1431:06. The Centaur stage made a single burn at 1435:12 for 7 min 12 sec and injected the Surveyor Dynamic Model D-2 spacecraft into a 168 x 820493 km x 28.6 deg orbit. The 945 kg SD-2, which was a detailed Surveyor spaceframe dynamic model with a dummy solar panel, antenna and retromotor, transmitted until 1030 on Aug 12. The equipment was mounted on the dummy retro. Centaur test flights would henceforth concentrate on proving the two-burn mission profile.


SD-2/AC-6 
 

DateTimeEventOrbit  

1965 Aug 11  1431:04  Launch by AC-6  CC LC36 
 1433:26  T+2:22 BECO 58 km -5991 x 122  
 1433:29  T+2:25 Booster sep  
  T+2:51 Insulation sep -5911? x 125?  
  T+3:16 Fairing sep  -5794? x 175?  
 1435  T+3:54 Atlas SECO 142 km  -5540 x 193  
 1435  T+3:56 Atlas sep 
 1435:12  T+4:03 Centaur MES  
  T+8:20  -2914 x 244  
  T+10:00  181? x 2850?  
 1442:19  T+11:19 Centaur MECO 
 1443:32  SD-2 sep 
1965 Aug 11  1443:32  SD-2 orbit  166 x 815085 x 28.56 (GD) 
 1445:33  Centaur retro venting 
 1501  AC-6 retro end, post retro  166 x 815042 x 28.56 
1965 Aug 28 0002  SD-2 first apogee, 830866  
1965 Sep 9  2200?  SD-2 lunar flyby 66000 km  
1965 Sep 13  0451  SD-2 perigee 2  33845 x 1013422  
1965 Oct 4  1416  SD-2 apogee 2  1013422 km  
1965 Oct 27  0617  SD-2 perigee 3, 96942 km  96942 x 982222  
1965 Nov 18  1712  SD-2 apogee 3 at 982222 km  
1967 Oct 31   In solar orbit 

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