RE: Another Failure?: GCOM W1 (2012-25A, 38337)

From: Ted Molczan (ssl3molcz@rogers.com)
Date: Sat Aug 18 2012 - 02:53:58 UTC

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    Scott Tilley wrote:
    
    > While conducting my usual observation run last night I noticed during a
    > review of the data that GCOM W1, 2012-25A, 28337 is varying with a
    > regular rapid period of ~1.5 seconds.
    > 
    > This caused me to Google what this s/c was as my habit is to investigate
    > what I see with a non-steady optical characteristic. I was struck by the
    > fact that this s/c was declared operational on just August 10, 2012.
    > 
    > http://www.jaxa.jp/press/2012/08/20120810_shizuku_e.html
    > 
    > Seems odd to me that an operational s/c would have such a rapid visible
    > flash rate.
    
    Except when it carries a scanning radiometer:
    
    http://www.jaxa.jp/countdown/f21/overview/shizuku_e.html
    
    We see the same behaviour from certain U.S. weather satellites that carry scanning radiometers.
    
    Ted Molczan
    
    
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