Tuesday, January 23, 1990

Explorer 35

  1967-070A


The second AIMP, AIMP-E (Anchored Interplanetary Monitoring Platform E or Explorer XXXV) was launched at 1419:02 on 1967 Jul 19 by Delta E1 from Cape Kennedy. It featured an improved attitude control system which could have overcome AIMP-D's problems. AIMP-E successfully reached lunar orbit, with an insertion burn at 0919:25 on Jul 22 into a 691.8 min, 2538 x 9429 km x 169 deg orbit (inclination relative to ecliptic plane). The angle between apoapsis, Moon and Sun was initially 304 deg in selenocentric solar ecliptic coords. The Star 13 motor separated by around 1130. The orbit had changed to 712.0 min, 715 x 7760 km x 171.0 deg by 1972. The probe carried on transmitting until 1973 Jun 24.


Explorer 35 
 

DateTimeEventOrbit  

1967 Jul 19  1419:02 Launch by Delta E1  CK 
  T+0:43 SRM 1-3 burnout 
  T+1:10 SRM 1-3 sep 
 1421  T+2:29 Thor S/N 20218 MECO 
 1421  T+2:33 St 1 sep 
 1421  T+2:33 Delta S/N 20217 burn 
  T+3:35 Fairing 
 1427:54 T+8:52 Delta SECO  103.30 155 x 1686 x 29.6 
 1440:59 T+21:57 St 2 sep 
 1441:12 T+22:10 FW4D S/N 00006 burn 30.8s dV=2.929 km/s 
  T+22:41 FW4D burnout  650 x 557687 x 29.34 (TR-1022) 
  T+23:10 Despin St3/SC, Yo weights  
  T+23:25 Deploy solar paddles and mag boom 
  T+24:05 St 3 sep 
  T+24:08 St 3 tumble rockets 
1967 Jul 22  0919:25 LOI Star 13, 23s burn 
 0919:48 Star 13 burnout 
 1130  Star 13 sep 
  (Post MOR 2 estimate)  800 x 7692 x 147.3  

 Lunar orbit 691.8 800 x 7692 x 169.0 
1967 Jul 25  Spin axis orientation 
1972   Lunar orbit712.0 715 x 7760 x 171.0 
1973 Jun 24   End of transmissions 

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