Monday, January 20, 1992

Insat 1A

 1982-031A


Insat 1A was built by Ford Aerospace for ISRO. It was launched on 1982 Apr 10 by Delta 3910/PAM-D. After launch, the solar panel and the C-band antenna did not deploy. After 12 days the C-band system was activated but the solar panel problem affected many of the systems; the VHRR imager failed in August, and attitude control was lost in September.


Insat 1A 
 

DateTimeEventOrbit  

1982 Apr 10  0647  Launch by Delta 3910/PAM-D CC LC17 
  T+0:57 SRM 1-6 off 
  T+1:02 SRM 6-9 on 
  T+1:10 SRM 1-3 sep 
  T+1:24 SRM 4-6 sep 
  T+1:59 SRM 6-9 off 
  T+2:05 SRM 6-9 sep 
  T+3:43 MECO 
 T+3:45 St 1 sep 
  T+3:51 SES-1 5:04 
  T+4:01 Fairing 
 0655 T+8:55 SECO-1 
  T+18:45 spinup 
 0705 T+18:47 St 2 sep  -579? x 228 x 28.1 
 0706 T+19:26 TES 86s 
 0707 T+20:52 TECO at 17W 0N 
 0717  Stage 2 reentry over 17E 18S? 
 0727 T+40? PAM sep (20 min after burnout) 
1982 Apr 10  1230   631.33 223 x 35776 x 28.1 
1982 Apr 11   LAM-1 Apogee burn 
1982 Apr 12   LAM-2 burn 
1982 Apr 12    1416.73 35031 x 35781 x 0.5 GEO 75.8E+4.9E 
  Solar sail failed to deploy 
1982 Apr 15   LAM  
1982 Apr 22   C-band deployed 
1982 May 4    1436.08 35394 x 36178 x 0.5 GEO 73.5E 
1982 Jun 25    1436.03 35393 x 36176 x 0.4 GEO 72.6E 
1982 Jun 25   On station  GEO 72.4E 
1982 Aug 13  VHRR failed 
1982 Sep 4   Attitude control lost 
1982 Sep 6   Decommissioned
1983 Dec 29   Drifting  1434 GEO 89Wdr 
1984 May 3    1434.14 35561 x 35935 x 0.1 GEO 19.3W+0.5E

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