RE: Cosmos-1 body brightness

From: Ted Molczan (molczan@rogers.com)
Date: Mon Jun 20 2005 - 12:01:43 EDT

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    Edward Light asked:
    
    > Has anyone an estimated standard (and/or quicksat "intrinsic" 
    > magnitude for the Cosmos-1 satellite body itself (without the 
    > reflective wings deployed)?
    
    Based upon a drawing I found on the Cosmos 1 website, I believe the spacecraft's
    bus is about 1.1 m long, and its average diameter is about 1 m, from which I
    estimate standard magnitude of 8 +/- 2 (1000 km, 90 deg phase angle).
    
    http://www.planetary.org/solarsail/ss_spacecraft/image2.html
    
    Ted Molczan
    
    
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