Re: Mir and Flares and 10820

From: Edward S Light (light@argoscomp.com)
Date: Fri Feb 18 2000 - 09:22:09 PST

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    Stephmon@aol.com recently replied to Dave LeBlanc ...
    >
    > From: Stephmon@aol.com
    > Date: Fri, 18 Feb 2000 12:07:39 EST
    > Subject: Re: Mir and Flares
    > To: SeeSat-L@blackadder.lmsal.com
    >
    > In a message dated 2/18/00 10:05:09 AM Eastern Standard Time,
    > dleblanc@alberni.net writes:
    >
    > > I observed Mir this morning from my location.
    > >
    > >  An object in a high orbit crossed Mir at 1420 UTC, producing
    > >  3 flares at mag 1.0 within a degree or two of the space station.
    > >
    > >  Did anyone else observe these flares and what was the object?
    > >
    >
    > Not a lot of detail to go on, but the following object was crossing Mir's
    > path at 1420. So, it was in the right place at the right time (about 15 deg
    > to the left of Polaris along Mir's track) and more than double the height of
    > Mir's orbit. Perhaps someone has seen flares from this object?
    >
    > Abbreviated Satellite Hunting output...
    >
    > Prediction Date: 2000 Feb  18 [Fri]
    > U.T.C.      Satellite Name  Sat.#   Elev.   Azimuth Mag Hgt
    > 14:13:41    DMSP B5D1-3 10820    10    163 [S]    7.6     785
    > 14:18:53    DMSP B5D1-3 10820    88    059 [NE]   5.3     785
    > 14:24:08    DMSP B5D1-3 10820    10    346 [N]    7.7     785
    < ... stuff deleted ... >
    
    I observed this object ( 10820 = 78-042A ) in four different passes between
    October 1997 and February 1998 and each time I noted it as varying with
    maximum apparent magnitudes ranging from about 3.5 to 5.6; my notes, however,
    don't mention flares as such - just slow (i.e. about 12 second period in
    January 1998) varying.
    
    
    Clear and dark skies!
       Ed Light
    
    Lakewood, NJ, USA
    N 40.1072, W 074.2317, Hgt +21 m (69 ft)
    
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