Optical 24 August 2009-video

From: Greg Roberts (grr@telkomsa.net)
Date: Wed Aug 26 2009 - 12:27:58 UTC

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    Observations 24 Aug 2009:
    ------------------------------------
    
    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 135mm focal length f/3.5 lens,integrating for 96 frames
    which is equivalent to an exposure of 1.92 seconds per image.
    
    Site 0433 : Longitude 18.51294 deg East, Latitude  33.94058 deg S,
    Elevation 10 metres - situated in Pinelands (Cape Town), South Africa
    
    FOR CLASSIFIED.TLE
    -------------------------------
    25991 99 067A   0433 G 20090824172808600 56 15 1005200-791636 39  +065 05
    25991 99 067A   0433 G 20090824172803000 56 15 0939172-793842 39  +065 05
    25991 99 067A   0433 G 20090824172814300 56 15 1030122-784522 39  +065 05
    25991 99 067A   0433 G 20090824173037200 56 15 1400456-344320 39  +065 05
    23533 95 015A   0433 G 20090824173953300 56 15 1545456+130830 39  +075 05
    
    Strays seen:
    ----------------
    LEASAT 3 PKM  range 4015 kms
    16229 85 028E   0433 G 20090824174953000 56 15 2106100-083724 39  +070 05
    ATLAS 3A Centaur, range 3610 kms
    28185 04 007B   0433 G 20090824184741800 56 15 1653404-022706 39  +045 05
    
    
    Unknown:
    -----------
    00000 00 000A   0433 G 20090824193844300 56 15 2105121-134901 39  +075 05
    00000 00 000A   0433 G 20090824193846200 56 15 2103251-132829 39  +085 05
    
    Notes:
    ---------
    (1) The above were obtained from the video DVD recording.
    
    (2) The first three positions for 25991 are accurate as satellite steady
        so ends of satellite trails clearly defined. By the time of the 4th
        position the satellite was flashing every 1.98 seconds and satellite
        trail ends not well defined.
    
    (3) #23533 difficult as trail faint so ends of satellite trail not well
        defined.
    
    (4) The unknown ?  may have been a meteor and I caught it in the middle
        of two exposures so duration not really 2 seconds. First exposure
        was quite bright, second exposure much fainter and faded out.
        Nothing seen before or after these exposures. Not the first meteor
        recorded tonight.
    
    ERRATA:
    --------------
    
    Report for 24 August 2009 #2 :
    
    The SL-12 R/B(2) in "Strays seen" was given the wrong identification
    (#27691). It should be 08033D  #33111
    
    Report for 23 August 2009:
    
    Mike queried one of the three positions of 90077. APEX remeasured the
    four images obtained and here are the results - essentially the same as 
    before.
    
    90077 07 757A   0433 G 20090823185120000 16 15 1619093-262400 28  +126 01
    90077 07 757A   0433 G 20090823185352000 16 15 1620375-262011 19  +119 03
    90077 07 757A   0433 G 20090823185511000 16 15 1621233-261806 98  +124 03
    90077 07 757A   0433 G 20090823185633000 16 15 1622289-261717 49  +121 08
    
    Cheers
    Greg 
    
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