88-18A geoflasher results

From: Tony Beresford (aberesford@iprimus.com.au)
Date: Sat Apr 27 2002 - 02:52:09 EDT

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    From the $th to the 18th of April  Ron Welch and myself measured the flash period
    of this geoflasher except April 7 and 8. This shows a clearly increasing period
    from 32.907secs on April 4.411 Ut to 34.2375 on April 18.55UT. If one plots
    the angular velocity rather than the period the plot shows that the rate of change
    of angular velocity  has not been constant. This implies that the torque on the
    spinning satellite braking its spin is not constant. 
    
    I havent been able to see it since my last observation on August 17, and Ron
    saw it on Aug 19, but no timing. Its too low in the west now for both Ron
    in Canberra and myself in Adelaide. Can any African resident list members pick it up?
    Tony Beresford
    
    
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