Re: NEOS

From: satcom (john@satcom.freeserve.co.uk)
Date: Sun Dec 19 2004 - 17:20:00 EST

  • Next message: Jim Scotti: "Re: NEOS"

    Hi Jim,
    
    Thanks for the reply.....the camera is still running at present , but I hope 
    to finish this particular period of obs very soon . At that time I'll be 
    able to check the movement more accurately.
    
    I have already considered a high inc geo , but I think it was moving too 
    fast for that ( Captured a 4.5 deg inc bird a few weeks ago and that moved 
    more slowly).
    From your description it sounds very much like a bird in hi orbit....I'll 
    have to start a search ;o))
    
    Thanks again,
    
    John
    
    
    
    ----- Original Message ----- 
    From: "Jim Scotti" <jscotti@pirl.lpl.Arizona.EDU>
    To: "satcom" <john@satcom.freeserve.co.uk>
    Cc: <SeeSat-L@satobs.org>
    Sent: Sunday, December 19, 2004 10:02 PM
    Subject: Re: NEOS
    
    
    > Hi John,
    >    20 arcminutes in 2 minutes translates to 10 degrees per hour or 240
    > degrees per day - that is exceptionally fast and implies if it were an 
    > NEO,
    > it would have to be extremely close - possible, but not nearly as likely 
    > as
    > it being a satellite.  It sounds more like a geosynch satellite in a high
    > inclination orbit or some other high altitude satellite.  Most of the NEOs 
    > we
    > see that are very close to Earth (within about 2 or so lunar distances)
    > typically move betweeen about 5 and 30 degrees per day.
    >
    > Jim.
    >
    > On Sun, 19 Dec 2004, satcom wrote:
    >
    >> At 2056 gmt ( RA 3.59.5   DEC -7.31 ) a small object approx mag 10-15 
    >> moved
    >> through the FOV.
    >> It took something like 2 minutes to track 20 arc minutes and travelled
    >> roughly North to South.
    >> May have been a deep space satellite , but it could also be a small NEO.
    >>
    >> Any near earth object experts on the list ?
    >>
    >> (Pics/animation to follow )
    >>
    >> John
    >
    > Jim Scotti
    > Lunar & Planetary Laboratory
    > University of Arizona
    > Tucson, AZ 85721 USA                 http://www.lpl.arizona.edu/~jscotti/
    >
    > 
    
    
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