Re: Shuttle, ET, ISS and Iridium Flare

From: Gerhard HOLTKAMP (
Date: Mon Jun 02 2008 - 19:20:50 UTC

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    Jean-Paul Comec reported that after analysing his picture of the Shuttle-ET 
    pass the distance between the two were about 3 km (at about 21:22:30 UTC, 
    31-MAY-08) while I had found a distance of 4 km at 21:24:00. These were 
    distances perpendicular to our lines of sight. Assuming that the ET was 
    directly below he Shuttle and factoring in the different elevations as viewed 
    from our two sites, I find an actual distance of 3.9 km at 21:22:30 and a 
    distance of 4.5 km at 21:24:00. This means that the distance between Shuttle 
    and ET increased about 400 meters per minute. Calculating backwards I arrive 
    at a distance of 0 at 21:12:45 UTC, 31-MAY-08 which is very close to the 
    actual time of MECO and Shuttle - ET separation. Q.E.D.
    Gerhard HOLTKAMP
    Darmstadt, Germany
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