Uncorrelated targets

From: Allen Thomson (thomsona@flash.net)
Date: Thu Nov 30 2000 - 08:15:54 PST

  • Next message: Greg Roberts: "Observations 29 Nov 2000"

    There's an article in
    
    http://www.orbitaldebris.jsc.nasa.gov/newsletter/v5i3/v5i3.html
    
    titled "LMT Data Reduction Continues" that contains some interesting data on
    the
    numbers of "uncorrelated targets", aka UCTs, (unknowns) detected by a NASA
    optical debris survey. The basic message is that they saw hundreds of UCTs
    which,
    if catalogued by USSPACECOM, presumably would be assigned 8xxxx catalog
    numbers and not be disseminated by OIG.
    
    Most of the UCTs NASA detected were quite faint, but several had an
    "absolute"
    visual magnitude as bright as 5.  It appears that NASA defines a.v.m. for
    satellites
    using a nominal range of 1,000 km -- I'm not sure about the phase angle.  In
    any
    event, some may have been bright enough to be seen by SeeSat observers.
    
    
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