Sunday, August 23, 1992

Yuri 2A

 1984-005A


NASDA managed the BS-2 program for Japan's first operational direct broadcast service operated by NHK (Nihon Hoso Kyokai). The satellite, built by Toshiba and GE had a mass of 350 kg on orbit. Two transponders malfunctioned so only one channel was available.

The spacecraft was a box 1.3 x 1.2 x 1.5m. Used 26 kg dry, 321 kg prop, 1.24m l 0.69m dia Star 27 motor for insertion.


Yuri 2A 
 

DateTimeEventOrbit  

1984 Jan 23  0758 Launch by N-2  TNSC 
  T+0:38 SRM sep 
  T+4:33 MECO 
  T+4:42 Stage 1 sep 
  T+4:52 SES-1 6:26 
 0803? T+5:02? Fairing sep
 0809  T+11:18 SECO-1  197 x 197? x 30.0? 
 0821 T+23:08 SES-2 
 0821  T+23:18 SECO-2  110.26 197 x 2296 x 30.0  
 0823  T+25m Stage 2 sep 
 0823  T+25m Stage 3 burn 43s 
 0824 TECO, Transfer orbit injection 
 0825 Stage 3 sep 
 1400? Apo 1 
 1900? Peri 1 
1984 Jan 24  0030?  Apo 2 
 0530? Peri 2 
 1100? Apo 3 
 1600? Peri 3 
 2200? Apo 4 over 170W 
1984 Jan 25  0245? Peri 4 
 0800? Apo 5 
 1300? Peri 5 
 1800? Apo 6 over 126W 
1984 Jan 25    635.46 200 x 36011 x 28.4 
1984 Jan 26 
 0000? Peri 6 
 0500? Apo 7 over 73E 
1984 Jan 26  0514  Star 27 burn at apo 7 
  Despin using thrusters 
  Solar arrays deployed 
 1030? Peri 7 
 1600? Apo 8 over 87W 
1984 Jan 26    1431.14 35359 x 36020 x 0.4 GEO 152.1E+1.2E 
1984 Jan 29  0230  Orbit adjust 
1984 Feb 15   On station 110E 
1984 Feb 26    1436.10 35784 x 35788 x 0.3 GEO 110.0E 
1985 Jul 14    1436.07 35783 x 35788 x 0.1 GEO 110.0E 
1985 Oct 17    1436.17 35776 x 35799 x 0.1 GEO 110.0E 
1985 Nov   move to 108E 
1985 Nov 22    1436.12 35780 x 35793 x 0.1 GEO 108.1E 
1986 Mar 12    1436.16 35783 x 35792 x 0.0 GEO 108.0E 
1987 Feb 7   mv out 1436.17 35784 x 35791 x 0.0 GEO 107.8E+0.03W 
1987 Mar 5   mv in  1436.16 35779 x 35796 x 0.0 GEO 109.9E 
1987 Jul 20    1436.09 35777 x 35795 x 0.1 GEO 110.0E 
1988 Sep 9    1436.17 35774 x 35802 x 0.2 GEO 109.7E 
1988 Nov 4    1436.09 35761 x 35811 x 0.4 GEO 110.2E 

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