Re: ISS Misses Moon - not by much!

From: Bruno Tilgner (
Date: Sun Jun 03 2001 - 02:26:09 PDT

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    >I wonder if anyone has ever seen a iridium satellite flare (or any
    >satellite, flare or not) crossing the (as yet) dark side of the moon?
    >I suppose that'd be awesome to see with binocs.  Maybe it would be worth
    >planning a trip to see such a thing.
    Such a trip would certainly be worth the effort, but it's a formidable
    job to calculate such an opportunity. It is possible to calculate the
    "shadow" track of a satellite, i.e. the track on the ground connecting
    all the locations from which the satellite would appear to cross the
    Moon's disk. That would have to be done for all the Iridiums, and one
    would also have to check all along the track if a flare occurs.
    At any rate, an interesting suggestion! I might give it a try.
    Bruno Tilgner
    Saint-Cloud, France
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