Optical 15 Dec 2008 Part 1

From: Greg Roberts (grr@telkomsa.net)
Date: Tue Dec 16 2008 - 16:21:19 UTC

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    Observations 15 Dec 2008 Part 1
    -----------------------------------------
    
    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.
    
    (2)Meade DSI Pro II Monochrome CCD camera without filters.
    using integration times of 20 sec min to 60 seconds maximum
    depending on brightness of sky in particular area.No image
    processing done but dark field applied.
    Used with 200mm focal length f/2.8 Nikkon telephoto lens,
    field of view 1.88 x 1.40 degrees. Can get to magnitude 13
    or so in less than 20 seconds exposure.
    Exposure time to nearest second inserted into image FITS header
    from PC clock which is automatically checked every minute against
    GPS 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:
    ----------------------- 
    25336 98 029A   0433 G 20081215184101000 56 15 0330074+104442 39  +080 05
    25336 98 029A   0433 G 20081215184422000 56 15 0333270+105021 39  +080 05
    12046 80 087A   0433 G 20081215185007000 56 15 0210472+124835 39  +120 05
    12046 80 087A   0433 G 20081215185534000 56 15 0216008+130841 39  +120 05
    23223 94 054A   0433 G 20081215185728000 56 15 2231010-002954 39  +105 05
    23223 94 054A   0433 G 20081215185955000 56 15 2233298-002918 39  +105 05
    23855 96 026A   0433 G 20081215190156000 56 15 0133176+062802 39  +100 05
    23855 96 026A   0433 G 20081215190423000 56 15 0135278+063252 39  +100 05
    90030 05 544A   0433 G 20081215192152000 56 15 0621432+111253 39  +115 05
    90030 05 544A   0433 G 20081215192524000 56 15 0625113+111832 39  +115 05
    96012 96 512A   0433 G 20081215194029000 56 15 0402283+015538 39  +120 05
    96012 96 512A   0433 G 20081215194256000 56 15 0405020+015617 39  +120 05
    96029 96 529A   0433 G 20081215194613000 56 15 0341178+102428 39  +115 05
    96029 96 529A   0433 G 20081215194925000 56 15 0344306+103429 39  +115 05
    96049 96 549A   0433 G 20081215201916000 56 15 0130041+164147 39  +125 05
    96049 96 549A   0433 G 20081215202039000 56 15 0131247+164519 39  +125 05
    05851 72 010A   0433 G 20081215214709000 56 15 0850164+105910 39  +120 05
    05851 72 010A   0433 G 20081215215050000 56 15 0853548+104749 39  +120 05
    32287 07 054A   0433 G 20081215215503000 56 15 0427015+063618 39  +115 05
    32287 07 054A   0433 G 20081215215730000 56 15 0429283+063419 39  +120 05
    27168 02 001A   0433 G 20081215222225000 56 15 0607516+072858 39  +075 05
    27168 02 001A   0433 G 20081215222407000 56 15 0609332+072931 39  +075 05
    27691 03 008A   0433 G 20081215222741000 56 15 0827065+051944 39  +110 05
    27691 03 008A   0433 G 20081215223606000 56 15 0835352+052001 39  +110 05
    
    Unknown
    ----------
    91129 08 350GEO 0433 G 20081215222741000 56 15 0826457+045653 39  +105 05
    91129 08 350GEO 0433 G 20081215223606000 56 15 0835155+053014 39  +105 05
    91129 08 350GEO 0433 G 20081215223235000 56 15 0831424+051614 39  +105 05
    
    
    Notes:
    --------
    (1) Warm night 27 deg C - seeing quite good
    
    (2) Unknown probably a rocket near apogee in eccentric low inclination
        orbit. No match to anything in my database of 12000 odd satellites.
    
    (3) Still to report observations made by video - these include
    
        SDS-3F4, MILSTAR 3, USA 32, NOSS 0(E) and NOSS 0(D) , 90081 and MSX
    
        plus the strays seen.
    
    Cheers
    Greg 
    
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