RE: 5919 obs 20050808 UNID

From: Ted Molczan (seesat@rogers.com)
Date: Tue Aug 09 2005 - 07:01:05 EDT

  • Next message: David Brierley: "DMB Obs Aug 8-9"

    Björn Gimle wrote:
    
    > ... I found a slow UNID near eta Boo. It 
    > was varying regularly with rounded maxima near +5 down to 
    > below +8. I lost it, and found it again - missed one or two 
    > maxima - period about 15s ?
    > 
    > 85720 05 720A   5919 G 20050808212639340 17 25 1348677+180260 69 R+050 10
    015000
    > 85720 05 720A   5919 G 20050808212725900 17 25 1300397+313482 38 R+050 10
    015000
    
    The mean angular velocity between those points is 0.37 deg/s, which is not
    especially slow.
    
    Best-fit circular orbit:
    
    1 70000U          05220.89351088  .00000000  00000-0  00000-0 0    01
    2 70000  70.1026 242.5900 0001000   0.0000  66.4310 15.74150949    03
    
    I note that your second point is within 0.34 s (time) and 0.04 deg of Iridium 76
    (98048B / 25432). It has no history of regular magnitude variation (Russell
    Eberst reported it as steady on 2005 Jul 18 UTC). Is it a meaningless
    coincidence, or could you have mistaken it for your UNID at your second point?
    
    Ted Molczan
    
    
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