Sunday, December 25, 2011

TDRS-1

 1983-026B


TDRS A was the primary payload on the first flight of the Challenger, STS-6. It was deployed at 0432 on 1983 Apr 5, attached to an IUS upper stage, into a 285 x 286 km x 28.5 deg orbit. The IUS-1 first stage ignited at 0527 and placed the satellite in a geostationary transfer orbit. The second IUS stage ignited at 1047, but the nozzle failed 83 seconds into a 107s burn, and the desired circular orbit was not reached. TDRS 1 found itself in a 21680 x 35380 km orbit. The solar panels were deployed at 2130 on Apr 5. On May 2, controllers began a series of small thruster burns to raise the orbit to geostationary altitude. On Jun 29 the satellite reached geosynchronicity at 67W. After an initial checkout at 74W in July, a test of space-to-space communications with the Landsat 4 satellite was done in August. In September TDRS was used for the first time to support a Space Shuttle mission, STS-8. From Sep 23 to Oct 17 it was moved to 41W, its operational position. It remained at 41W until 1989, although an antenna malfunction on 1986 Nov 28 reduced its capability. On 1989 Jun 4 it was replaced by TDRS 4 and began a move to the TDRS SPARE location at 79W. In 1990/91 it was moved to 171W to backup the TDRS WEST satellite. It remained there until 1993 Dec 1 when it was reassigned to support the Compton Gamma Ray Observatory via the new ground station at Tidbinbilla, Australia. It arrived at the new 85E location in Feb 1994.


TDRS 1 
 

DateTimeEventOrbit  

1983 Apr 5  0430:01  Deploy  285 x 286 x 28.5 
1983 Apr 5  0527  IUS-1 SRM-1 burn 2:31  
 0529  SRM-1 burnout 
 1044  SRM-1 sep 
1983 Apr 5  1046  SRM-2 burn 103s   
  Burn failed, tumbled 
  SRM-2 separated on command 
1983 Apr 5  2130  Solar panel deploy 
1983 Apr 5    1086.03 21845 x 35388 x 2.4  
1983 Apr 25    1086.13 21849 x 35396 x 2.4 
1983 May 2  
4.5min burn  22130 x 35394  
1983 May 3   42min burn  22429 x 35394  
1983 May 10 
1h22m burn  22886 x 35378  
1983 May 11   3h02m burn  23875 x 35398  
1983 May 12   3h burn  24796 x 35409  
1983 May 14   1h10m burn  26071 x 35423 
1983 May 15   1h49m burn  26641 x 35431  
1983 May 16   2h02m burn  27296 x 35462  
1983 May 17   2h01m burn  27872 x 35515  
1983 May 18   19m burn  27959 x 35516  
1983 May 19   2h08m burn  28773 x 35582  
1983 May 20   2h10m burn  29354 x 35597  
1983 May 24   20 m burn  29427 x 35610  
1983 May 25   1h38m burn  29873 x 35698  
1983 May 27   1h burn  30183 x 35707  
1983 Jun 1   13min burn  30252 x 35708  
1983 Jun 2   1h burn  30571 x 35708  
1983 Jun 3   47m burn  30821 x 35708  
1983 Jun 4   1h burn  31144 x 35710  
1983 Jun 5   1h15m burn  31551 x 35711  
1983 Jun 6   1h burn  31880 x 35711  
1983 Jun 6   1h burn  32206 x 35711  
1983 Jun 8   18m burn  32309 x 35711  
1983 Jun 9   1h burn  32639 x 35719  
1983 Jun 10   1h burn  32972 x 35715  
1983 Jun 11   1h burn  33306 x 35716  
1983 Jun 12   54m burn  33610 x 35716  
1983 Jun 12    1378.97 33608 x 35712 x 2.0 
1983 Jun 13    1386.14 33888 x 35717 x 2.0 GEO 33.8E+13.0E 
1983 Jun 14   50m burn  33888 x 35719  
1983 Jun 15   43m burn  34128 x 35719  
1983 Jun 29    35780 x 35780 x 2 GEO 67W 
1983 Jun 29    1435.10 35746 x 35787 x 2.0 GEO 67.3W+0.2E 
1983 Jul 1    1435.99 35784 x 35784 x 2.0 GEO 67.1W+0.0E 
1983 Jul 28    1436.10 35784 x 35788 x 2.0 GEO 66.6W 
1983 Oct 8   mv out 1436.48 35777 x 35810 x 1.8 GEO 70.3W+0.1W 
1983 Oct 17   41W 
1983 Oct 26   mv in  1435.93 35761 x 35805 x 1.7 GEO 40.8W+0.04E 
1983 Dec 14    1436.14 35767 x 35807 x 1.6 GEO 39.9W 
1985 Aug 1    1436.00 35768 x 35801 x 0.6 GEO 40.8W 
1986 Oct 22    1436.28 35774 x 35806 x 1.3 GEO 41.7W 
1986 Nov 28   antenna problems
1987 Jun 26    1436.09 35768 x 35804 x 1.8 GEO 40.5W 
1989 Jun 4   mv out 1436.13 35779 x 35794 x 3.6 GEO 40.5W 
1989 Jul 4    1440.61 35863 x 35886 x 3.6 GEO 73.1W+1.1W 
1989 Jul 28   mv in  1436.28 35723 x 35857 x 3.7 GEO 78.9W+0.05W 
1989 Oct 29    1436.04 35765 x 35805 x 3.9 GEO 78.7W 
1990 Apr 11   mv out  1436.06 35756 x 35814 x 4.3 GEO 78.7W 
1990 May 1    1447.94 35995 x 36050 x 4.4 GEO 169.9W-2.9W 
1990 May 6   mv in  1436.33 35784 x 35797 x 4.3 GEO 170.0W+0.06W 
1990 May 12    1436.29 35783 x 35797 x 4.4 GEO 170.4W 
1991 Jul 15    1436.00 35774 x 35795 x 5.4 GEO 170.5W 
1992 Oct 11    1436.01 35774 x 35795 x 6.4 GEO 170.8W 
1993 Nov 4    1436.00 35782 x 35786 x 7.6 GEO 170.7W 
1993 Dec 9   mv out  1435.92 35774 x 35792 x 7.3 GEO 170.5W+0.04E 
1993 Dec 11    1442.18 35833 x 35977 x 7.3 GEO 174.0E-1.5W 
1993 Dec 19    1442.12 35832 x 35976 x 7.3 GEO 161.6E-1.5W 
1994 Feb 7   GRO support  
1994 Feb 16   braking 1436.31 35778 x 35803 x 7.5 GEO 86.0E+0.06W 
1994 Mar 6   mv in  1436.35 35780 x 35803 x 7.5 GEO 85.0E 
1995 Jan 27    1436.12 35766 x 35807 x 8.1 GEO 85.4E 
1995 May 6   mv out 1436.27 35671 x 35908 x 8.3 GEO 84.6E+0.05W 
1995 May 29    1429.53 35648 x 35664 x 8.4 GEO 118.8E+1.6E 
1995 Aug 8   mv in  1436.08 35778 x 35794 x 8.5 GEO 138.9W 
1995 Dec 11   mv out  1435.99 35769 x 35799 x 8.8 GEO 139.3W 
1995 Dec 19    1433.91 35731 x 35756 x 8.7 GEO 135.3W+0.5E 
1996 Mar 16    1433.82 35720 x 35763 x 8.8 GEO 84.5W+0.5E 
1996 Jun 26   mv in  1436.07 35777 x 35795 x 9.0 GEO 49.0W 
1997 Jul 2    1436.09 35771 x 35800 x 9.5 GEO 48.8W 
1998 Jul 10   Attitude control problem 
1999 Apr 28    1436.19 35779 x 35797 x 10.3 GEO 49.0W 
2003 Sep 4    1436.07 35776 x 35795 x 11.7 GEO 48.9W 
2006 Jul 25    1436.05 35714 x 35856 x 12.5 GEO 49.2W 
2009 Oct 5? Retired from service 
2009 Oct 23    1436.14 35657 x 35916 x 13.4 GEO 48.9W 

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