Re: ISS eclipsed ?

From: Tony Beresford (
Date: Mon Jun 11 2001 - 05:36:04 PDT

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    At 18:19 11/06/01 , Tristan Cools wrote:
    >It's in Dutch so here's the translation:
    >According to Alphonse Pouplier, ISS(which can be seen from 22:13UT monday
    >evening(June 11)) will disappear in the Earth's shadow for about 2
    >minutes(from 22:15 untill 22:17) and then re-appear before it goes behind
    >the horizon.  Maximum  height is 36 degrees.
    I agree that it wont happen like that Tristan. Running quicksat
    shows that the shadow is entered around 22:17UT when it is above horizon
    for brussels .If you run heavens above for the ISS and Brussels and looks
    at the ground track it also shows the same behaviour. I also ran the visible
    pass option of trakstar and got the same effect. There was however at
    least a span of 30 seconds in shadow entry time, with same TLE!
    Tony Beresford
    Adelaide , So Aust
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