Friday, February 28, 1997

USA-81

 1992-023A


The third Titan 23G test payload was launched in Apr 1992. It was discovered shortly after launch by R. Kracht in an orbit similar to that of USA 32 but in an orbital plane displaced by 90 degrees. This satellite was registered with the UN, with a low parking orbit of 145 x 175 km given. This may be the orbit of the Titan rocket just prior to reentry, rather than the actual parking orbit of the payload.


USA 81 
 

DateTimeEventOrbit  

1992 Apr 25  0853  Launch by Titan 23G  V SLC4W 
  T+2:30? Stage 1 sep 
  T+2:30? Stage 2 burn 
  T+3:45? Fairing 
  T+5:25? Stage 2 MECO 
 0858? T+5:30? Stage 2 sep  
1992 Apr 25    89.1 147 x 175 x 85.0 (UN) 
1992 Apr 25   Orbit raise 1 
1992 Apr 25   Orbit raise 2 
1992 May 11    100.77 788 x 801 x 85.03 

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