Unknown? - 28 Oct 2010

From: Greg Roberts (grr@telkomsa.net)
Date: Sat Oct 30 2010 - 10:15:02 UTC

  • Next message: Russell Eberst: "2010OCT29-30.OBS"

    Observations 28 Oct 2010
    ---------------------------------
    
    Cosatrak 1 (Computerised satellite Tracking System).
    Camera mount now carries two systems that can be operated
    together as two totally different sytems and computers used.
    Generally the DSI Pro II camera will be used for high altitude
    slow moving objects. Tests seem to indicate that its sensitivity
    is comparable to the MINTRON ( possibly better) but as its not
    possible (?) to time stamp to better than 1 second accuracy the
    time resolution is not good enough for LEO objects.
    
    (1) 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 50mm focal length f/1.8 lens,integrating for 128 fields
    which is equivalent to a max exposure of 2.56 seconds maximum
    per image. Field of view 6.8 x 5.4 degrees.
    Individual frames are video time stamped with GPS derived signal.
    
    Site 0433 : Longitude 18.51294 deg East, Latitude -33.94058 deg,
    Elevation 10 metres-situated in Pinelands (Cape Town),South Africa
    
    
    UNKNOWNS:
    ==============
    
    UNKNOWN 1
    99999 99 999A   0433 G 20101028180933500 56 15 2230470+180108 39  +050 05
    99999 99 999A   0433 G 20101028180944900 56 15 2233010+173437 39  +050 05
    99999 99 999A   0433 G 20101028180956300 56 15 2235080+170844 39  +050 05
    99999 99 999A   0433 G 20101028181009800 56 15 2237200+164129 39  +050 05
    99999 99 999A   0433 G 20101028181035300 56 15 2241420+154751 39  +050 05
    99999 99 999A   0433 G 20101028181101800 56 15 2246070+145458 39  +050 05
    
    
    
    UNKNOWN 2 --  suspect bird but track too short to see if any deviation
    00000 00 000A   0433 G 20101028181009800 56 15 2236300+174333 39  +055 05
    00000 00 000A   0433 G 20101028181010500 56 15 2232050+184345 39  +055 05
    
    
    NOTES:
    =========
    
    (1) Still busy measuring video observations from 28 October. Unable to
        find a match for UNKNOWN 1 - since its bright and steady it might be
        an interesting object - maybe one we have lost ? ( or just not in
        my current database ?).
    
    (2) Wouldnt waste time on the second one - 99% certain its a lonely
        bird looking for a date.
    
    
    Cheers
    Greg
    
    
    
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