AW: USA 193...............Down under !

From: Arnold Barmettler (
Date: Sat Feb 02 2008 - 17:57:49 UTC

  • Next message: Gordon Prichard: "Re: USA 193...............Down under !"

    > In principle, you can take the propagated last orbit that SatEvo predicts,
    > plus
    > the decay time it predicts, and input both in a program like Orbitron to
    > see
    > where the satellite would be at that moment.
    This is done so for the satellite predictions by It uses (all)
    SatEvo's TLEs until decay of an object.
    For example, following link will print all visible passes of the bird in
    question, also listing the event of decay: 
    Simply click on the object name of the decay event to see the ground track
    map, with the position of the satellite marked for that time.
    Marcos arguments regarding uncertainties fully apply - that's why there is
    no decay time printed, only a date. This will change, the closer we get to
    the decay.
    The 10.7cm flux input to Alan's SatEvo is a weighted average from the 45 day
    predictions by the USAF.
    Best regards
    Arnold Barmettler
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