Unknowns 4/9 May 2005

From: Greg Roberts (grr@iafrica.com)
Date: Wed May 11 2005 - 12:29:18 EDT

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    Observations 04 May-09 May 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 f/2.5 lens.
    
    Site 0433 : Longitude 18.51294 deg East, Latitude  33.94058 deg S,
    Elevation 10 metres - situated in Pinelands (Cape Town), South Africa
    
    
    Unknowns observed:
    ---------------------------
    
    91028 05 129MEO 0433 E 20050509214925800 56 15 1038555+131021 39  +080 05
    91028 05 129MEO 0433 E 20050509214937200 56 15 1039055+125141 39  +080 05
    91028 05 129MEO 0433 E 20050509215009200 56 15 1039354+115628 39  +080 05
    91028 05 129MEO 0433 E 20050509215113100 56 15 1040342+095631 39  +080 05
    
    
    91027 05 124GEO 0433 G 20050504193307000 56 15 1445112+052040 39  +095 05
    91027 05 124GEO 0433 G 20050504193410200 56 15 1446146+052045 39  +095 05
    91027 05 124GEO 0433 G 20050504193533000 56 15 1447376+052028 39  +095 05
    
    91027 05 124GEO 0433 E 20050509175405900 56 15 1326044+051330 39  +095 05
    91027 05 124GEO 0433 E 20050509175553000 56 15 1327538+051324 39  +095 05
    91027 05 124GEO 0433 E 20050509180609900 56 15 1338121+051324 39  +095 05
    91027 05 124GEO 0433 E 20050509194857900 56 15 1521170+051356 39  +095 05
    91027 05 124GEO 0433 E 20050509225305500 56 15 1825561+051606 39  +105 05
    
    
    Intelsat 904
    ------------
    26900 01 039A   0433 G 20050504193307000 56 15 1444546+051714 39  +090 05
    26900 01 039A   0433 G 20050504193410200 56 15 1445579+051703 39  +090 05
    26900 01 039A   0433 G 20050504193533000 56 15 1447211+051707 39  +090 05
    26900 01 039A   0433 E 20050509175405900 56 15 1325224+051734 39  +090 05
    26900 01 039A   0433 E 20050509175553000 56 15 1327094+051735 39  +090 05
    26900 01 039A   0433 E 20050509180609900 56 15 1337287+051727 39  +090 05
    26900 01 039A   0433 E 20050509194857900 56 15 1520308+051631 39  +090 05
    26900 01 039A   0433 E 20050509225305500 56 15 1825010+051531 39  +100 05
    
    
    Notes:
    --------
    
    (1) 05-129MEO - Bright and steady - cannot find a match in my elements
        database.
    
    (2) New geostationary discovered on 4th May close to Intelsat 904.
    
        Ignore the positions I reported for this object in my previous report
        as too much scatter in declination. Turns out the inclination is pretty
        close to zero degrees. I subsequently remeasured the positions and
        wrote a short program to use the method of dependencies to determine
        the positions. For the 4th May I used three reference stars and for
        the 9th May used 4 stars.
    
    (3) For interest sake I have given the position of Intelsat 904 at the times
        I measured 05-124GEO since it was only about 11 arc minutes away from
        it and one is drifting relative to the other.
    
    (4) Still measuring the material obtained on the 9th May - a LOT!!!
    
    Cheers
    Greg
    
    
    
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