RE: ISS 5 consecutive passes

From: Edward Ehrlich (eehrlich@shani.net)
Date: Fri Aug 09 2002 - 17:20:31 EDT

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    I'd like to thank everyone again who sent in information on how it is
    possible for the ISS to appear in 3 or more consecutive passes.
    
    Because I mistakenly thought that this was impossible, I had written
    software that restricted the period that would be checked for satellite
    passes to that near the times of sunrise and sunset (provided the day
    had a relatively normal length).  This was done in order to save time.
    It DID save time, but it also missed predicting certain actual
    appearances of the satellite.
    
    My prediction program now runs both slower and more surely.
    
    Ed Ehrlich - SkyWatch - The Astronomical Alarm
    Clock<webmaster@sky-watch.com>
    Jerusalem, Israel
    http://www.sky-watch.com
    
    
    
    
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