Re: ISS eclipsed ?

From: Bjoern Gimle (b_gimle@algonet.se)
Date: Mon Jun 11 2001 - 06:28:16 PDT

  • Next message: Dale Ireland: "RE: ISS eclipsed ?"

    Trak16 gives the shadow duration as about
    
    5 min 01/06/01 00:53 (center)
    2.5   01/06/01 02:26
    then 0
    2 min 01/06/04 19:50
    4 min 01/06/04 21:22
    5 min 01/06/04 22:55
    ...
    15 min 01/06/05 21:28
    25 min 01/06/07 20:10
    33 min 01/06/11 21:00
    
    According to Skymap, it was 4.4 minutes in penumbra 01/06/04 19:50, but not
    in umbra.
    next orbit 6 minutes in penumbra, 22:55 2.0 minutes in umbra 51.6E 40.2N to
    58.9E 35.4N, at 00:25 the first observable shadow entry occurred over the
    horizon of Bruxelles; but "never" the exit.
    
    
    -- bjorn.gimle@tietotech.se (office)                         --
    -- b_gimle@algonet.se (home)  http://www.algonet.se/~b_gimle --
    
    > 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
    
    
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