Chasing CALIPSO

From: Gregg Hendry (kt.mag@att.net)
Date: Thu Feb 08 2007 - 00:21:09 EST

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    Spots on the ground from the CALIPSO green laser were successfully observed last night under clear skies.
    
    I was positioned on the sub-satellite ground track 60 meters above a flat area looking north along the ground track.  Right on time two spots clearly appeared in quick succession roughly 800 meters to my northeast.  Taking a GPS reading close to the apparant spot track placed it 420 meters east of the sub-satellite track.   The spots appeared pale green, not remarkably bright but easy to see.  Due to the distance and shallow angle the spot size couldn't clearly be judged. The area was 30 percent snow covered and well lit by the waning gibbous moon and several bright lights. 
    
    G. Hendry
    
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