RE: Future Reentries

From: Ted Molczan (
Date: Mon Feb 09 2009 - 20:02:15 UTC

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    Paco Ocaņa wrote:
    > And a newbie question. Both orbits are very exccentric. So I suppose 
    > that certain parts of the groundtrack will have more probability to
    > be the place of the decay (at the perigee) or not? Is it possible to 
    > calculate that perigee groundpoints for the orbit?
    latitude of perigee = asin(sin(inc) * sin(arg perigee))
    For Molniya orbits, perigee typically will be in the southern hemisphere.
    I recommend signing up to Space Track for information on decays.
    Ted Molczan
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