Re: Strange TLE for 02-024X

From: Edward S Light (light@argoscomp.com)
Date: Fri May 24 2002 - 11:37:05 EDT

  • Next message: Michael McCants: "Re: Strange TLE for 02-024X"

    This past night, Mike McCants wrote:
    
    > Ed Cannon and I have been watching the three main objects for the last
    > few nights.  Based on slightly different brightnesses, I believe that
    > the original elset for Payload A was for the Hai Yang 1 and for
    > Payload B was for Feng Yun 1D.
    < ... stuff deleted ... >
    > The Long March (27432) is tumbling with a period of about 0.54 seconds.
    > It is bright and spectacular.  The elsets for 27431 and 27432 have
    > been consistent.
    >
    > There were no new elsets for 27433 for a couple of days.  I was unable
    > to find an object at the location of the old elset.  Last night I was
    > able to observe a relatively faint (magnitude 7 or so in strong moonlight)
    > object (at 3:13UT May 23) that matches the 14.224 elsets:
    >
    > So it is certainly possible that this piece of debris has a small enough
    > mass that it could have a high drag like this.  This is a "non-standard"
    > elset since the perigee plus mean anomaly does not add up to about 360
    > degrees.
    >
    > It is possible that there is another debris object here?
    
    
    We too have been following these objects (observations below) and it looks
    like they all merit watching- the rocket for its entertainment value and
    the others to try to pin down the identifications.
    
    Clear and dark skies!
       Ed Light
    
    Lakewood, NJ, USA
    N 40.107, W 074.231, +24m
    
    Our data ...
    
      UTC Date/Time     NCAT    V    IM    SM
    ------------------  -----  ---  ----  ---- 
    2002 05 16/01:18.9  27430  4.0  +3.7  +4.7
    2002 05 17/01:10.2  27430  5.8  +5.5  +6.3
    2002 05 17/01:10.8  27430  4.9  +4.3  +5.3
    
    2002 05 16/01:19.1  27431  4.0  +3.7  +4.7
    2002 05 17/01:10.4  27431  5.2  +4.9  +6.0
    2002 05 17/01:10.6  27431  4.7  +4.4  +5.5
    2002 05 17/01:11.1  27431  4.9  +4.3  +5.3
    
    2002 05 16/01:14.6  27432  3.5  +3.2  +4.3
    2002 05 16/01:15.2  27432  3.5  +2.9  +3.8
    2002 05 17/01:01.1  27432  3.1  +2.7  +3.9
    2002 05 17/01:02.5  27432  4.0  +3.4  +4.5
    2002 05 23/01:26.8  27432  5.1  +4.6  +5.1
    2002 05 23/01:27.8  27432  5.2  +4.3  +4.9
    2002 05 24/01:14.8  27432  3.5  +2.9  +3.8
    
    2002 05 16/01:18.5  27433  6.5  +6.2  +7.2
    2002 05 17/01:09.2  27433  6.0  +5.7  +6.8
    
    Notes:
    (1) All brightness estimates were made with 7x50 and 10x50 binoculars
        using conveniently near comparison stars.
    (2) The values for the rapidly tumbling rocket (27432) are the maxima.
    (3) "V" = Observed apparent magnitude (+/- a few tenths)
    (4) "IM" = Quicksat "intrinsic" magnitude (full phase, 1000 km range)
    (5) "SM" = Skymap "standard" magnitude (half phase, Lambert law, 1000 km range)
    
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