Steve LaLumondiere Unid and other observations

From: Mike McCants (mmccants@io.com)
Date: Sun Oct 02 2005 - 14:49:18 EDT

  • Next message: Mike McCants: "Re: Steve LaLumondiere Unid and other observations"

    On Sept. 25, Steve LaLumondiere posted:
    
    >The UNID was located at RA 23:46 and Dec. -13:35 at 05:44:10 UTC.  It
    >flashes with a period of approximately 10 seconds and was visible between
    >05:43 and 05:45 UTC.
    
    >... it was quite bright (roughly
    >mag 3).  From my location, it flashes very nearly the same time each night
    >for approximately 2 minutes, as seen in 10x50s.
    
    Ed and I saw this object for a few flashes last night.
    
    It stopped flashing very abruptly about 05:35 UT.
    
    Of course a 10 second period is suggestive of a DSP.
    
    Based on other positions from Steve and my guess for a position
    last night, my search orbit is:
    
    Unknown       
    1 99999U          05274.42710373 0.00000000  00000-0  00000-0 0    03
    2 99999   7.6000  66.8400 0001000 356.0000   4.0000  1.00240000    00
    
    The positions last night were close to ASC 1 (15994, 85 76C),
    Raduga 1-1 (20083, 89 48A), and Arabsat 1B (15825, 85 48C) and
    Ed spotted one of these.  It flashed with a period of about
    46 seconds from before 04:57 UT until after 05:17 UT.
    The flashes alternated bright/fainter and period 45 seconds/47 seconds.
    Before and after the fainter flashes there were many secondary
    brightenings to about magnitude 10 with a period of about 1/2 second.
    
    Ed also discovered GStar 4 (20946, 90 100B) flashing with a period
    of about 123 seconds.  We watched it from about 03:20 UT until about
    04:10 UT.  All obs Oct. 2 UT from BCRC.
    
    We also observed 25 or so flaring geosyncs.  Ed could see Direct TV 4S
    (26985, 01 52A) "one power" at about mag 3.5 about 03:08 UT.
    This was about 3 hours before its shadow entry.
    
    Mike McCants
    Austin, TX
    
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