Flash pattern North Korean satellite

From: Greg Roberts (grr@telkomsa.net)
Date: Thu Dec 20 2012 - 12:30:37 UTC

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         Afternoon all
    
        Ive finally had a chance to look at one of my videos of one of the passes
        of the North Korean satellite  KMS 3-2  and choose the pass of 15 Oct
        2012 at random.   Although it was quite difficult to get sharp events
        - ie well defined minima and maxima  an interesting pattern appears
        to have emerged.   At low elevations as the satellite increased
        elevation there was a brightning about just over every 17 seconds
        or so which would,  in light of later observations,  indicate a
        reflection from the same face of the satellite.  However as the
        elevation increased the brightness variations became somewhat less
        pronounced and seemed to occur roughly just a bit more than once
        every 4.5 seconds - this might indicate I was seeing a reflection
        from each face of the 4 sided satellite.   At around culmination I got
        a brightening about every 9 seconds or so which seems to indicate a
        reflection from every second face.  This is no doubt due to the
        change in orientation of the satellite as seen by the observer.
    
       Now  I guess I had better check the other passes recorded.
    
       Cheers 
       Greg
    
    
    
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