Optical 05 April 2010-last

From: Greg Roberts (grr@telkomsa.net)
Date: Wed Apr 07 2010 - 09:29:16 UTC

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    Observations 05 APRIL 2010-part 2
    ---------------------------------------
    
    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 ~100mm focal length f/2.8 lens,integrating for 128 fields
    which is equivalent to a max exposure of 2.56 seconds maximum
    per image. Field of view 3.3 x 2.6 degrees.Actual exposure depends
    on sky background brightness.
    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
    
    FOR CLASSFD.TLE:
    =================
    
    21775 91 076A   0433 G 20100405172656300 56 15 0646281-262844 39  +100 05
    21775 91 076A   0433 G 20100405172951200 56 15 0721566-131716 39  +100 05
    21775 91 076A   0433 G 20100405173255400 56 15 0748155-014440 39  +105 05
    35938 09 052B   0433 G 20100405175748200 56 15 0933203+123429 39  +070 05
    35938 09 052B   0433 G 20100405175918500 56 15 1024501-014922 39  +060 05
    35938 09 052B   0433 G 20100405180048700 56 15 1122502-160906 39  +055 05
    35938 09 052B   0433 G 20100405180126300 56 15 1148173-211800 39  +050 05
    35937 09 052A   0433 G 20100405180647500 56 15 0813570+263402 39  +075 05
    35937 09 052A   0433 G 20100405180815900 56 15 0854195+153858 39  +070 05
    35937 09 052A   0433 G 20100405180951800 56 15 0947551+001245 39  +060 05
    20344 89 061D   0433 G 20100405194626200 56 15 1439222-410136 39  +085 05
    20344 89 061D   0433 G 20100405194805800 56 15 1502155-431013 39  +090 05
    20344 89 061D   0433 G 20100405194947400 56 15 1524154-444241 39  +090 05
    90070 06 829A   0433 G 20100405200734300 56 15 0508222-035353 39  +080 05
    90070 06 829A   0433 G 20100405201031600 56 15 0610103-085233 39  +075 05
    90070 06 829A   0433 G 20100405201334000 56 15 0717475-130412 39  +075 05
    90070 06 829A   0433 G 20100405201632600 56 15 0822054-153741 39  +070 05
    90070 06 829A   0433 G 20100405201942500 56 15 0922368-163929 39  +055 05
    
    
    Strays seen:
    ===============
    ORBCOM FM41
    33061 08 031B   0433 G 20100405173219800 56 15 0754234-023535 39  +075 05
    SL-8 R/B steady
    12443 81 041B   0433 G 20100405175337400 56 15 0809167+382354 39  +050 05
    SL-14 R/B variable
    22652 93 030G   0433 G 20100405180126300 56 15 1147133-215218 39  +080 05
    GONETS D1M1 steady
    28909 05 048B   0433 G 20100405181405600 56 15 0854129+243413 39  +070 05
    COSMOS 2160 variable
    21731 91 068D   0433 G 20100405181407800 56 15 0902234+240721 39  +080 05
    RESURS 01-N4
    25394 98 043A   0433 G 20100405182749000 56 10 0608070+161216 39  +055 05
    NADEZHDA 5 variable
    25567 98 072A   0433 G 20100405182749000 56 10 0609296+162040 39  +080 05
    DELTA 2 R/B(1) steady
    22097 92 057B   0433 G 20100405183818800 56 10 0621152+012416 39  +065 05
    IRS 1D variable to invisible
    24971 97 057A   0433 G 20100405184850600 56 10 0621388+300300 39  +070 05
    IUS R/B(1) range 11385 kms
    25868 99 040C   0433 G 20100405201632600 56 10 0821071-162951 39  +075 05
    
    NOTES:
    ------
    (1) Above observations made with the video system. Really a good night-
    could see stars down to mag +13 with 2 second integrations- oh for a dark
    sky and good seeing - both impossible from my site!
    
    (2) All above processed manually.
    
    (3) Elements for 90070 virtually spot-on - very good :-))
    
    Cheers
    Greg 
    
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