Re: Superbird A

From: Ed Cannon (ecannon@mail.utexas.edu)
Date: Fri Apr 20 2001 - 01:15:19 PDT

  • Next message: Tony Beresford: "Re: Superbird A"

    Kevin wrote:
    
    >What other geo sat's flash , maybe reaching naked eye or at 
    >least in a pair of 10*50 binoculars.
    
    Tony Beresford has a file of orbital elements of a number of
    this type of object (plus a few other flashers that are in 
    highly eccentric orbits):
    
    http://www.adelaide.net.au/~starman/tle/geoflsh.tle
    
    To those I'll add the following others that I have seen or 
    that have been reported on SeeSat:
    
    11841 80049A Gorizont 4
    15677 85035A GSTAR 1 
    17046 86082A Raduga 19
    17083 86090A Gorizont 13
    18631 87100A Raduga 21
    19017 88028A Gorizont 15
    19483 88081A GSTAR 3
    19919 89027A Tele-X
    20705 90063A TDF 2
    90007 00653A Unknown
    
    Several of the above are included in the mccants.tle file:
    
    http://users2.ev1.net/~mmccants/tles/mccants.zip
    
    I've seen Superbird A, the two GSTARs, Tele-X, TDF 1 and TDF 2,
    and a couple of Gorizonts without magnification.  90007 flashes 
    to at least +4, but it's now among the missing due to too much 
    unfavorable weather over Austin.  Note that many of these flash
    at their brightest, like Superbird A, for only a few minutes 
    each night.
    
    More information, though getting somewhat dated, on this type 
    of object is on the following Web pages:
    
    http://www.geocities.com/CapeCanaveral/Hangar/1668/geo-ppas.htm
    http://www.geocities.com/CapeCanaveral/Hangar/1668/gorizont.htm
    
    Other high-altitude eccentric flashing objects include several
    Molniyas, 90006, 90907, Hipparcos, Centaurs.  Most of these 
    usually require a telescope but can sometimes be seen with 
    binoculars.  A few Molniyas have been seen without magnification 
    on rare occasions.
    
    Ed Cannon - ecannon@mail.utexas.edu - Austin, Texas, USA
    
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