Re: GFO satellite

From: Greg Roberts (grr@telkomsa.net)
Date: Sat Dec 20 2008 - 05:33:29 UTC

  • Next message: Bob Christy: "Re: GFO satellite"

    Morning Bob ( and everyone else)
    
    Thanks for checking the radio side.At least it gives an idea of when to look - 
    Ive got evening passes for quite a long while so should re-acquire it optically. 
    It used to be an easy optical object but now that its lost its attitude control 
    it is probably a more difficult object. Ill check my DVD and CCD recordings made 
    when I observed on the 15th December- now that I know on which side of the 
    prediction to look and also look for a faint tumbling object I might find it....
    
    Ill try and track tonight - still have the cloud gunk I had on the 15th though 
    but that cant last forever :-))
    
    Thanks to all that contributed to this discussion - makes tracking more 
    interesting!
    Cheers
    Greg
    
    ----- Original Message ----- 
    From: "Bob Christy" <rdc@zarya.info>
    To: "Seesat-L" <SeeSat-L@satobs.org>
    Sent: Saturday, December 20, 2008 2:47 AM
    Subject: Re: GFO satellite
    
    
    > It seems as though GFO has become an intermittent transmitter with a slightly 
    > unstable frequency. It may be rotating slowly.
    >
    > I just monitored a pass where the transmitter was operating for less than two 
    > minutes at around the time of closest approach to me.
    >
    > Compared with what Orbitron predicts, it was 4.4 min late against the day 305 
    > element set but the transmitter instability might have affected the timing by 
    > a few seconds.
    >
    > 1 25157U 98007A   08305.23032623 0.00000000  00000-0  47482-3 0    02
    > 2 25157 108.0669 147.4055 0003000 313.1259  46.8741 14.31487526    06
    >
    > It looks as though Greg may have missed the chance for a visual observation by 
    > only a few seconds.
    >
    >
    > -- 
    > Bob Christy
    > Lincoln, UK
    >
    > WGS84:
    > 53.2231 North
    > 0.6002 West
    > Height: 14m
    >
    > http://www.zarya.info
    > 
    
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