more bright geosats

From: Rainer Kracht (R.Kracht@t-online.de)
Date: Thu Oct 09 2003 - 13:15:20 EDT

  • Next message: Rainer Kracht: "Re: more bright geosats"

    Mintron 12V1C-EX and lens 12 mm f/1.4
    field of view 30 x 22 degrees (pixel size 0.04 deg)
    2003 Oct 07, limiting mag 8.6 to 9.0
    
    The camera was aimed at the midpoint between shadow entry and
    shadow exit for geostationary satellites in Cetus. The Moon was
    94 % lit not far away in Aquarius. Many bright geosats were found
    (sometimes between moonlit clouds):
    
    name              intdes    catno   UTC      mag
    2003 Oct 07
    Express 4A       2002-029A  27441  20:40.5   5
    Hot Bird 5       1998-057A  25495  21:09     5
    Express 4A       2002-029A  27441  21:35.5   7.5 - 8.0
    Raduga 1-4       1999-010A  25642  21:41     6.5
    HotBird cluster  at 13.0 E         22:22     5.5
    Arabsat 2A       1996-040A  23948  22:31     5
    Eutelsat 2-F3    1991-083A  21803  22:41     5
    Inmarsat 3-F5    1998-006B  25153  22:41.5   5.5
    Gorizont 27      1992-082A  22245  22:46.5   6.5
    Gorizont 23      1991-046A  21533  22:49     6   flashing
    Unknown031007    2003-780A  90017  23:02     7
    Astra cluster    at 19.2 E         23:05     5.3
    Raduga 29        1993-013A  22557  23:04     7
    Eutelsat W2      1998-056A  25491  23:14     6
    HotBird cluster  at 13.0 E         23:28     3.5
    Eutelsat W3      1999-018A  25673  23:48.5   5.5
    Skynet 4F        2001-005B  26695  23:57     6
    Sirius 2         1997-071A  25049  23:58     5
    2003 Oct 08
    DSP 20           2000-024A  26356  00:02    4.5 flashing
    Gorizont 29      1993-072A  22907  00:19    5.5
    
    
    PPAS
    91- 46 A 03-10-07 22:45:55   RK  408.3 0.3   7 58.33   mag 6->INV
    91- 46 A 03-10-07 22:59:32   RK  583.0 0.3  10 58.30   mag 6->INV
    00- 24 A 03-10-08 00:02:45   RK  110.1 0.3  11 10.01   mag 4.5->INV
    
    The unknown satellite was only visible from 23:01:08 UTC (emerging
    from a cloud) until 23:03:57 UTC. Kindly enough it reappeared a day
    later between clouds from 23:02:40 until 23:04:20 UTC. A second
    unknown satellite appeared in these images (Oct 08) about 0.85 deg
    eastwards of the first unknown. The second unknown was not visible
    in the Oct 07 images. So it's probably not geosync.
    
    Rough elset for the first unknown satellite:
    
    UNK031007
    1 90017U          03281.00000000  .00000000  00000-0  00000+0 0    02
    2 98017   3.0000  87.7337 0000100   0.0000 298.5457  1.00274000    07
      1 03 10 07 23 02 19.3   0 47.35 -10.748 2000
      1 03 10 08 23 03 20.8   0 52.33 -10.730 2000
    
    
     Rainer
    
    
    Rainer Kracht
    Elmshorn, Germany
    Station 5005
    53.7695N 9.6626E  9m Potsdam Datum
    53.7679N 9.6614E 47m WGS84
    R.Kracht@t-online.de
    
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