Saturday, July 12, 2003

Intelsat 4A1

  1975-091A


The first Intelsat IVA satellite became Atlantic Primary soon after launch and on-orbit testing. In 1981 it was replaced by an Intelsat V and moved to the Major Path 2 position. It was moved to a spare position in 1983 and then retired in 1986.


Intelsat IVA F-1 
 

DateTimeEventOrbit  

1975 Sep 26  0017:00  Launch by Atlas Centaur  CC LC36B 
 0019  Booster sep
 0021  Atlas sep 
 0021:18  T+4:18 Centaur D-1A-0532-07 MES-1 
 0021:30  Fairing 
 0027:21  T+10:21 Centaur MECO-1 
 0027:21 Coast  185 x 1806 x 28.1 
 0041:51? T+24:51? Centaur MES-2 2:05 
 0043:56? Centaur MECO-2 
 0045:34  Centaur sep, orbit insertion  578 x 36746 x 21.8 
1975 Sep 26  0800?  Apo 1 
 1900?  Apo 2 
1975 Sep 27  0300? Apo 3 
1975 Sep 27  0317  SVM-4A burn  1426 35358 x 35825 x 0 GEO + 10E/d  
1975 Sep 28  0300  Braking burnGEO + 3E/d 
1975 Oct 31   Tests complete 
1975 Dec 25   On station  GEO 25W 
1976 Jan   AOR Primary, replaced IV F-3 GEO 25W 
1977 Jan 17    1436.12 35785 x 35788 x 0.0 GEO 24.6W 
1978 Jun 8    1436.10 35782 x 35791 x 0.0 GEO 24.4W 
1978 Sep    GEO 24.5W 
1979 Jan   AOR Primary  GEO 24.5W 
1980 Feb 19    1436.13 35775 x 35798 x 0.0 GEO 24.6W 
1981 May 10    1436.13 35780 x 35794 x 0.0 GEO 24.6W 
1981 Oct 12    1436.15 35779 x 35796 x 0.3 GEO 24.6W 
1981 Nov   mv out, replaced by 501  GEO 24.5W 
1981 Nov 3    1435.33 35757 x 35785 x 0.3 GEO 21.9W+0.2E 
1981 Dec 23   mv in  1436.05 35777 x 35794 x 0.1 GEO 18.4W 
1982 Jan    GEO 18.5W 
1982 Oct   AOR Major Path 2  GEO 18.5W 
1982 Dec 17    1436.14 35782 x 35792 x 0.1 GEO 18.7W 
1983 Jan 7   replaced by 506 
1983 Feb 7    1435.96 35780 x 35787 x 0.1 GEO 18.4W+0.03E 
1983 Aug 18    1436.06 35778 x 35793 x 0.1 GEO 18.6W 
1983 Sep   mv out 
1983 Oct 4    1436.12 35782 x 35791 x 0.0 GEO 30.5W 
1984 Jan 15    1436.07 35780 x 35792 x 0.1 GEO 31.0W 
1985 Dec 1    1436.12 35780 x 35793 x 1.6 GEO 30.9W 
1986 May 12    1436.14 35785 x 35789 x 2.0 GEO 31.1W+0.02W 
1986 Jul 6    1436.34 35783 x 35799 x 2.2 GEO 32.9W+0.06W 
1986 Jul 24   mv out  0.999 GEO 33W 
1986 Aug 6    1441.00 35876 x 35889 x 2.3  
1989 Dec 26    1441.03 35853 x 35913 x 5.5 
1999 Apr 24    1440.89 35857 x 35903 x 11.8 

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