Re: Very bright flare

From: Ed Cannon (ecannon@mail.utexas.edu)
Date: Mon May 17 2004 - 05:25:20 EDT

  • Next message: Ted Molczan: "TJM obs of 2004 May 17 UTC"

    Rainer Kresken wrote:
    
    >Tonight at about 20:49:30 GMT, I saw a very bright flare 
    >... estimated the brightness to between -5 and -6 mags.  
    >... the sat was approximately at Ra = 15h Dec = -5d (Libra)
    >After the flare, the object remained visible at about 
    >4 to 5 mags.  The slow motion suggested that it was higher 
    >than an Iridium satellite.  Later, it passed close to the 
    >little dipper at Ra 16:30, dec +70 d
    >My observing site is at 49.8030 N, 8.5980 E
    
    I hope I correctly understood the date to be May 16.  If 
    so, Resurs O1-N4 may be a good candidate.  Its radar cross-
    section is about 11.7 square meters, and it probably has 
    good-sized solar panels.  Its orbital height is about 824 
    km, while Iridium is about 776 km.  
    
    Resurs O1-N4
    1 25394U 98043A   04135.54053728  .00000036  00000-0  34191-4 0  8051
    2 25394  98.5810 209.0581 0000761 191.1033 169.0130 14.24003757303710
    
    Ed Cannon - ecannon@mail.utexas.edu - Austin, Texas, USA
    
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