RE: Sats near Machholz

From: Ted Molczan (molczan@rogers.com)
Date: Wed Sep 22 2004 - 18:55:30 EDT

  • Next message: Kevin Fetter: "Re: Sats near Machholz"

    Kenneth, welcome to SeeSat-L!
    
    > September 22, 2004 10:53:20 UTC (5:53:20 CDT)
    > 
    > 95.5512 west longitude
    > 
    > 30.4765 north latitude
    > 
    > Field centered @ RA 4h 47m Dec -25d 11m  (5 degree binocular field)
    > 
    > I noticed the two sats in the central half of the field 
    > moving south. The brighter was ~6th magnitude with the fainter
    > one (~8th mag) about 1.2 degrees to the west. The fainter satellite
    > was leading or trailing (did not note) in what appeared to be 
    > perfect step - like they were part of the same craft. They took 
    > about 30 seconds to exit the field.
    
    At first, I thought you saw two of the three satellites of the NOSS 2-1
    formation, but they passed more than 90 s after your fairly precisely stated
    time, so I ran an IDSat search, and found these more likely candidates, both of
    which are rocket bodies:
    
    Iridium 4 r      5.9  2.4  0.0  5.0 v 12.4
    1 24797U 97020F   04266.07505433  .00000406  00000-0  86692-4 0  8413
    2 24797  86.8915 251.4009 0231779 302.6918  55.2117 14.41178859387576
    
    trailed about 7 s and 0.6 deg to the west by:
    
    Cosmos 1598 r    7.4  2.4  0.0  5.5 v 8.00
    1 15293U 84100B   04266.71267939 -.00000044  00000-0 -62317-4 0  4241
    2 15293  82.9371 252.3729 0024205  72.5988 287.7811 13.74584266948724
    
    Their angular velocity and direction of travel through your FOV were similar.
    
    The IDSat program is available here:
    
    http://users2.ev1.net/~mmccants/programs/IDSat.zip
    
    Ted Molczan
    
    
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