Re: NROL-28 launch

From: Igor Lissov (lissov-i@yandex.ru)
Date: Wed Apr 16 2008 - 09:04:44 UTC

  • Next message: Tony Beresford: "8597 satobs april 16 2008"

    Bob,
    
    > USA-137 is also synchronised with USA-184, the previous SIGINT launch. This
    > is because they both carry an Interim Polar EHF Communications package. It
    > is designed for two satellite operation and they reach polar apogee close
    > together in time but sufficiently separated to ensure 24 hour coverage. The
    > third package is scheduled to launch on the replacement for USA-137. After
    > that, the fully-designed Polar EHF system will come on line.
    
    According to http://www.navy.mil/navydata/policy/vision/vis99/v99-ch3e.html
    and other sources including budget justifications for program element 063432F, 
    the first Interim Polar EHF payload was launched in November 1997. 
    
    So it should be onboard USA-136 / Trumpet (08 Nov 1997) and not onboard 
    USA-137 / SDS-C (29 Jan 1998).
    
    Sincerely, 
    Igor Lissov
    
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