Re: Distribution of Geosynchronous Satellites

From: Ulhas Deshpande (dulhas@eth.net)
Date: Tue Apr 22 2003 - 03:49:13 EDT

  • Next message: Robert G Fenske Jr: "Re: Distribution of Geosynchronous Satellites"

    Please what does RAAN stand for
    Thanks
    Ulhas Deshpande
    ----- Original Message -----
    From: "P B Bharadhwaj" <psbad1@sancharnet.in>
    To: <SeeSat-L@satobs.org>
    Sent: Monday, 21 April, 2003 17:37
    Subject: Re: Distribution of Geosynchronous Satellites
    
    
    > The NASA animation made me realize what should have been obvious from the
    > beginning : the split-off belt of satellites represents a population that
    > has RAAN and inclination values that are clustered in some narrow range.
    > (Thanks, Thomas!)
    >
    > Well, if you plot a histogram of the RAAN, you do see a wide peak around
    60
    > degrees. What is even more interesting is that the satellites lying within
    > this belt have an amazing (to me, at least)  correlation between the RAAN
    > and inclination values.
    >
    > I have posted the plots here in case anyone is interested :
    > c15_manali.tripod.com/geo/geo.htm
    >
    > Any explanations about this phenomenon? Is there some technical reason to
    > deliberately use such orbits, or is it that abandoned satellites tend to
    > gravitate into this kind of orbit -- a la "strange attractor" ?
    >
    >
    > Regards,
    > Praveen
    >
    >
    > ----- Original Message -----
    > From: "Thomas Fly" <thomasfly@j2ee-consultants.com>
    > To: "SeeSat-L" <SeeSat-L@satobs.org>
    > Sent: Sunday, April 20, 2003 9:53 PM
    > Subject: Re: Distribution of Geosynchronous Satellites
    >
    > > NASA has a cute Java applet at
    > > http://liftoff.msfc.nasa.gov/RealTime/JTrack/3D/JTrack3D.html that may
    > help
    > > you see what's going on. [edited]
    >
    >
    >
    >
    >
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