Obs 15/20 Feb 2005

From: Greg Roberts (grr@iafrica.com)
Date: Mon Feb 21 2005 - 10:28:47 EST

  • Next message: Kevin Fetter: "Re: Obs 15/20 Feb 2005"

    Observations 20 Feb 2005:
    --------------------------------
    
    Cosatrak 1 (Computerised satellite Tracking System).
    MINTRON low light level CCD surveillance camera (0.005 lux typical
    in non integration mode) and 0.00005 lux in STARLIGHT mode with 128
    frame integration.
    
    Used with 145mm focal length lens + IR filter ( filter use is ??).
    
    Site 0433 : Longitude 18.51294 deg East, Latitude  33.94058 deg S,
    Elevation 10 metres - situated in Pinelands (Cape Town), South Africa
    
    
    
    90013 03 564A   0433 P 20050220213903000 17 15 1050043+090905 39
    27168 02 001A   0433 P 20050220211719300 17 15 0728284+062719 39
    
    11778 80 030K   0433 P 20050220183009300 17 15 0936188+052823 39  +105 05
    02174 66 040B   0433 P 20050220190009100 17 15 0248142+030656 39
    13553 82 092B   0433 P 20050220191019100 17 15 0512472+050805 39
    28114 03 056C   0433 P 20050220201839800 17 15 1121108+030430 39  +081 05
    25493 98 056C   0433 P 20050220211546700 17 15 0712527+145609 39  +078 05
    
    00001 00 000A   0433 F 20050215193622000 56 15 1022152+053728 39
    00001 00 000A   0433 F 20050215193822000 56 15 1024156+053656 39
    00001 00 000A   0433 F 20050215205853500 56 15 1144597+052944 39
    00001 00 000A   0433 P 20050220182838000 17 15 0934194+054109 39
    00001 00 000A   0433 P 20050220200248100 17 15 1108515+053507 39  +090 10
    00001 00 000A   0433 P 20050220204341400 17 15 1149499+053117 39
    00002 00 000B   0433 F 20050215194830000 56 15 0940250+061105 39
    00008 00 000C   0433 F 20050220210156000 17 15 0452533+051412 39
    00026 00 000D   0433 F 20050220192301300 17 15 0438127+131859 39  +115 10
    00000 00 000X   0433 P 20050220195342900 17 15 1050503+062902 39
    
    90003 99 503A   0433 P 20050220204907800 17 15 0648015+191430 39
    90003 99 503A   0433 P 20050220183935100 17 15 0438223+153628 39
    90003 99 503A   0433 P 20050220211958400 17 15 0719189+193027 39
    90003 99 503A   0433 P 20050220214051300 17 15 0740289+193256 39
    
    26766 01 019A   0433 P 20050220200248100 17 15 1103426+051318 39  +085 10
    25473 98 052A   0433 P 20050220200248100 17 15 1104221+051518 39  +085 10
    23461 95 001A   0433 P 20050220183250000 17 15 0922425+051444 39
    
    Notes:
    ------
    (1) 90013 - bright geostationary - brightest Ive seen
        27168 - Milstar 5 geostationary
        25473 - Pas 7 - geostationary
        26766 - Pas 10 - geostationary
        23461 - Intelsat 704 - geostationary - bright
    
        11778 - Cosmos 1174 debri
        02174 - Thor Agena B rocket
        13553 - SL-14 rocket - bright/fast - range 850 kms
        28114 - Cosmos 2403 - range 22149 kms
        25493 - Ariane 44L r/b - 10300 kms
    
    (2) My identification for unknown satellites bears no resemblance
        to "real life" and is purely for my own convenience.
    
        00001 is in the same field of view as PAS 10 and PAS 7
        00002 only seen on the 15th Feb as a faint geostationary - too faint
              for conditions on the 20th Feb 2005
        00008 is another faint geostationary
        00026 geostationary at about mag 11.5
        00037 was found to match #90003 so now reported as #90003
        00043 was a geostationary at edge of field of view - not measured
        00000 was found entirely by "accident" as a result of setting the
              camera incorrectly.
    
    
        Apart from 00001 all require further observations before orbits can be
        established.
    
    (3) 90013 and Milstar 5 were used to check mount calibration - it looks
        like I may have solved my elevation problem mentioned in earlier reports
    
    (4) The other satellites reported were observed by accident and since I
        wanted to identify them I measured their positions. Probably of no use
        to anyone - including myself.
    
    (5) Further observations of unknown geostationaries will have to wait till
        the moon out of evening sky as satellites too faint.
    
    Cheers
    Greg
    
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