Saturday, April 17, 1993

Fleetsatcom 5

 1981-073A


FLTSATCOM F5 was launched in Aug 1981 from Cape Canaveral. The orbit was more eccentric than planned. It was positioned at 73W for tests, but its antenna failed to deploy. The satellite was not used operationally but it was stored in GEO until 1986. A failure review concluded that the spacecraft support adapter had structurally failed, causing the satellite to hit the inner skin of the Atlas Centaur nose fairing, damaging the spacecraft.


FLTSATCOM F5 
 

DateTimeEventOrbit  

1981 Aug 6  0816:00 Launch by Atlas Centaur  CC LC36 
  T+2:25 Booster sep 
  T+4:15 SECO 
  T+4:16 Atlas sep 
  T+4:23 MES-1 
  T+4:30 Fairing sep
 0826 10:10 MECO-1  148 x 363 
 0842 T+26:50 MES-2 1:38 
 0844 T+28:28 MECO-2  630.08 172 x 35763 x 26.6 
 0845 T+29:05 Centaur sep 
 0846 T+30:30? Centaur venting 
 1400? Apo 1 99E 
1981 Aug 7  0000? Apo 2 60W 
 1100? Apo 3 145E 
 2200? Apo 4 15W  
1981 Aug 8  0800? Apo 5 168W 
 1900?  Apo 6 28E 
1981 Aug 9  0500?  Apo 7 125W 
 1600? Apo 8 75E 
1981 Aug 10  0100?  Apo 9 80W 
1981 Aug 10  0146? Star 37 burn 9th apo 1558.0 35102 x 41185 x 0 
1981 Aug 10    1558.18 35102 x 41185 x 6.3 82.2W+29W/d 
1981 Aug 11   Despin 
1981 Aug 12  GEO 73W 
1981 Aug 14 Solar panels deployed 
1981 Aug 14 Antenna failed to deploy 
1981 Sep 1    1553.77 34949 x 41169 x 6.3 
1981 Sep 3   Orbit lower 1470.73 34863 x 38060 x 6.4 GEO 46.8W+8.5W 
1981 Sep 8   Orbit lower 1436.25 34776 x 36805 x 6.3 GEO 90.2W 
1981 Sep 14    1436.20 34770 x 36806 x 6.4 GEO 90.3W 
1981 Oct  D
1981 Oct    GEO 93W 
1981 Dec    GEO 95W 
1982 Mar    GEO 104W 
1982 May    GEO 109W 
1982 Jul    GEO 114W 
1982 Jul 1    1436.38 34793 x 36790 x 5.8 GEO 112.8W+0.08W 
1982 Aug   Move to 44W 
1982 Aug 31    1435.90 35653 x 35912 x 5.7 GEO 44.8W+0.04E 
1982 Sep   In storage  GEO 44W 
1983 Dec 10    1436.01 35687 x 35882 x 5.0 GEO 44.6W+0.02E 
1985 Apr 20    1435.99 35754 x 35814 x 4.4 GEO 44.6W+0.02E 
1986 Jun 8    1436.26 35778 x 35801 x 4.3 GEO 44.7W+0.05W 
1986 Jun 10   Raise orbit  
1986 Jun 12    1450.10 35802 x 36317 x 4.3  
1986 Jul 12   Raise orbit 1459.90 36231 x 36270 x 4.3 
1988 Dec 1    1459.96 36209 x 36294 x 5.1 

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