Re: Difference between observed and predicted time of satellite pass

From: Leo Barhorst (
Date: Tue Mar 16 2004 - 12:25:13 EST

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    Hi Geoff,
    The differance can be easily explaned.
    How old were your TLE's?
    When they are a bit outdated a difference of several minutes is quite well
    depending on how high the orbit of the sat is.
    Lower sats are more effected by the earth's atmosphere than higher ones.
    Greetings and clear, dark skies
    Leo Barhorst, Medemblik NL
    Cospar 4252 52.76350 N 5.09114 E 2 m ASL
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