Tuesday, October 8, 2002

DFH-2

 1971-018A


China's second satellite was Shi Jian 1 (SJ 1, PRC 2). Shi Jian has been translated as `Practice' or `Test'. SJ 1 was similar in construction to DFH 1. It carried a magnetometer and solar cells, and cosmic ray detectors. SJ 1 transmitted until at least 1977. Transmissions continued on 20.008MHz from the final stage rocket until Mar 11, after which 19.995 MHz transmissions from the payload began, and it appears that the rocket did not separate until then.


Shi Jian 1 
 

DateTimeEventOrbit  

1971 Mar 3  1202?  Launch by CZ1  JQ 
 1203?  T+1:00 Stage 2 burn 
 1204?  T+3:00? Stage 2 burnout 
 1206? Stage 2 sep 
 1209? Stage 3 burn  
 1210? Stage 3 burnout 
   106.2 268 x 1830 x 69.9 
1971 Mar 10   Stage 3 separated 
1971 Mar 26   end of tx from stage 3 
1977?  end of transmissions  
1979 Jun 17   Reentered over Lake Michigan 

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