Obs 14 July 2005

From: Greg Roberts (grr@iafrica.com)
Date: Fri Jul 15 2005 - 12:14:25 EDT

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    Observations 14 Jul 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 150mm focal length f/2.8 lens. Integrating for 48 frames
    so effective exposure 0.96 seconds. Field of view 2.40 x 1.89 degrees.
    
    Site 0433 : Longitude 18.51294 deg East, Latitude  33.94058 deg S,
    Elevation 10 metres - situated in Pinelands (Cape Town), South Africa
    
    Correction for 11 July 2005:
    
    28097 03 054C   0433 F 20050711184716600 56 15 0833230-594737 39
    28097 03 054C   0433 F 20050711184830800 56 15 0954500-622428 39
    28097 03 054C   0433 F 20050711184936100 56 15 1136290-610932 39
    
    I mis-identified it as #28096 instead of #28097
    
    Observations of Unknown reported earlier:
    
    99999 00 000A   0433 G 20050714170913200 56 15 1355316+315925 39  +083 05
    99999 00 000A   0433 G 20050714171046300 56 15 1402069+300757 39  +083 05
    99999 00 000A   0433 G 20050714171143900 56 15 1406295+285356 39  +082 05
    99999 00 000A   0433 G 20050714171300800 56 15 1412565+270536 39  +081 05
    99999 00 000A   0433 G 20050714171444500 56 15 1422297+242118 39  +080 05
    99999 00 000A   0433 G 20050714171556400 56 15 1429543+221120 39  +078 05
    99999 00 000A   0433 G 20050714171705500 56 15 1437496+195349 39  +075 05
    99999 00 000A   0433 G 20050714171817600 56 15 1447154+170735 39  +073 05
    99999 00 000A   0433 G 20050714171916100 56 15 1455499+143721 39  +060 05
    99999 00 000A   0433 G 20050714172046400 56 15 1511046+100739 39  +065 05
    99999 00 000A   0433 G 20050714172208000 56 15 1527430+051655 39  +055 05
    99999 00 000A   0433 G 20050714172318000 56 15 1544553+002317 39  +065 05
    99999 00 000A   0433 G 20050714172435800 56 15 1608055-055641 39  +065 05
    99999 00 000A   0433 G 20050714172532500 56 15 1628166-111042 39  +060 05
    99999 00 000A   0433 G 20050714172707500 56 15 1710290-204200 39  +055 05
    99999 00 000A   0433 G 20050714172831000 56 15 1757420-290226 39  +060 05
    99999 00 000A   0433 G 20050714173019500 56 15 1911538-373525 39  +060 05
    99999 00 000A   0433 G 20050714173115200 56 15 1952343-401944 39  +070 05
    
    07816 75 043A   0433 G 20050714171300800 56 15 1415509+263325 39  +090 05
    
    Notes:
    -------
    
    (1) Many thanks to Ted and Mike for each producing an orbit to fit the
        observations of #91034 and #91035 reported earlier - turns out they
        were the same object as suspected. The orbits produced were so
        similar that either one would have been suitable to track on  predictions
        using my narrow field of view so consequently I had  no trouble
        tracking the object as soon as it cleared local trees and before it
        entered earths shadow.The object is variable with a  short period
        and was visible at all times. As the images are integrated images
        its difficult to derive the period but it appears to be less than 2 seconds.
    
    (2) The object reported as #07816 was seen as a "stray" whilst tracking
        on the unknown and was the only other satellite predicted to be in
        the area.
    
    Cheers
    Greg
    
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