Optical 20 Sept 2008

From: Greg Roberts (grr@telkomsa.net)
Date: Mon Sep 22 2008 - 15:03:04 UTC

  • Next message: Ted Molczan: "TJM obs of 2008 Sep 23 UTC"

    Observations 20 Sept 2008
    -------------------------------------
    
    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 sesnitivity
    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 135mm focal length f/2.8 lens,integrating for 128 frames
    which is equivalent to a max exposure of 2.56 seconds maximum
    per image. Field of view 2.7 x 2.1 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 S,
    Elevation 10 metres-situated in Pinelands (Cape Town),South Africa
    
    
    For CLASSFD.TLE:
    -----------------------------
    
    90082 08 731A   0433 F 20080920173845000 56 15 1625207+332123 39  +110 05
    90082 08 731A   0433 F 20080920180007200 56 15 1709558+073936 39  +095 05
    90082 08 731A   0433 F 20080920180324700 56 15 1720247-000933 39  +085 05
    90082 08 731A   0433 F 20080920180601500 56 15 1730504-080925 39  +080 05
    32378 07 060A   0433 F 20080920175052300 56 15 1608455+114618 39  +075 05
    32378 07 060A   0433 F 20080920175253900 56 15 1627052+154603 39  +075 05
    32378 07 060A   0433 F 20080920175532300 56 15 1646346+200635 39  +080 05
    32378 07 060A   0433 F 20080920175901800 56 15 1707079+244218 39  +080 05
    25336 98 029A   0433 F 20080920171329000 56 15 2027378-023230 39  +075 05
    25336 98 029A   0433 F 20080920171748000 56 15 2031594-022825 39  +075 05
    19976 89 035A   0433 F 20080920181019000 56 15 2149034+004000 39  +085 05
    19976 89 035A   0433 F 20080920181250000 56 15 2151329+004228 39  +085 05
    14675 84 009A   0433 F 20080920181640000 56 15 1716524-023358 39  +085 05
    14675 84 009A   0433 F 20080920181917000 56 15 1720151-023419 39  +085 05
    29240 06 024A   0433 F 20080920182256000 56 15 1831013+045400 39  +115 05
    29240 06 024A   0433 F 20080920182448000 56 15 1832584+045256 39  +100 05
    27938 03 041B   0433 F 20080920182933000 56 15 1619183+093642 39  +115 05
    27938 03 041B   0433 F 20080920183312000 56 15 1622595+093716 39  +110 05
    08916 76 059A   0433 F 20080920183923000 56 15 2027182-032030 39  +065 05
    08916 76 059A   0433 F 20080920184222000 56 15 2030155-031059 39  +065 05
    12339 81 025A   0433 F 20080920184528000 56 15 2300237-015804 39  +115 05
    12339 81 025A   0433 F 20080920184853000 56 15 2303416-014622 39  +110 05
    13086 82 019A   0433 F 20080920185603000 56 15 1954132-104344 39  +115 05
    13086 82 019A   0433 F 20080920190055000 56 15 1959072-103616 39  +110 05
    32287 07 054A   0433 F 20080920190918000 56 15 1934184+070514 39  +105 05
    32287 07 054A   0433 F 20080920191410000 56 15 1939110+070919 39  +110 05
    22787 93 056A   0433 F 20080920200127000 56 15 2201414-010905 39  +100 05
    22787 93 056A   0433 F 20080920200448000 56 15 2205039-010743 39  +100 05
    23967 96 042A   0433 F 20080920201611000 56 15 1823581+015642 39  +125 05
    23967 96 042A   0433 F 20080920202403000 56 15 1831522+015140 39  +125 05
    25967 99 063A   0433 F 20080920202902000 56 15 0141533+044554 39  +100 05
    25967 99 063A   0433 F 20080920203418000 56 15 0147089+044829 39  +100 05
    25967 99 063A   0433 F 20080920204100000 56 15 0153506+045159 39  +100 05
    15543 85 010B   0433 F 20080920203418000 56 15 0147582+035015 39  +080 05
    15543 85 010B   0433 F 20080920204100000 56 15 0154220+041914 39  +080 05
    28117 03 057A   0433 F 20080920204335000 56 15 0153117+064451 39  +110 05
    28117 03 057A   0433 F 20080920204646000 56 15 0156236+064541 39  +110 05
    14930 84 037A   0433 F 20080920210614000 56 15 0156160+065223 39  +125 05
    14930 84 037A   0433 F 20080920211356000 56 15 0203374+072210 39  +125 05
    96132 96 632A   0433 F 20080920213924000 56 15 2101109-034314 39  +120 05
    96132 96 632A   0433 F 20080920214151000 56 15 2104200-034041 39  +120 05
    96103 96 603A   0433 F 20080920215343000 56 15 2234136+031705 39  +120 05
    96103 96 603A   0433 F 20080920215833000 56 15 2239221+034812 39  +120 05
    26880 01 033A   0433 F 20080920220504000 56 15 0310436+032104 39  +125 05
    26880 01 033A   0433 F 20080920221603000 56 15 0321462+033058 39  +125 05
    
    Strays seen:
    ---------------
    ARIANE 5 R/B  range 10660 kms variable
    30795 07 007C   0433 F 20080920175532300 56 15 1648180+200545 39  +080 05
    ATLAS CENTAUR ROCKET range 21970 kms regular flashing,invisible at min
    12363 81 018B   0433 F 20080920180324700 56 15 1719185-005531 39  +060 05
    GLOBALSTAR M041 steady
    25650 99 012B   0433 F 20080920180601500 56 15 1727026-090809 39  +055 05
    SL-8 R/B steady
    32284 07 053B   0433 F 20080920175253900 56 15 1632050+153556 39  +050 05
    SL-14 R/B variable
    12786 81 082B   0433 F 20080920173458100 56 15 1620340+355735 39  +060 05
    IRIDIUM 38  very variable, + 5 max to invisible
    25043 97 069E   0433 F 20080920173758600 56 15 1620210+341144 39  +050 05
    IRIDIUM 15
    24869 97 034A   0433 F 20080920173930400 56 15 1620390+324437 39  +070 05
    RADUGA 1-6   geostationary variable +11/+13
    26936 01 045A   0433 F 20080920181019000 56 15 2151068+000029 39  +110 05
    EUROBIRD 4 geostationary
    24931 97 049A   0433 F 20080920182211000 56 15 1829285+052705 39  +095 05
    INTELSAT 4 geostationary
    23636 95 040A   0433 F 20080920202902000 56 15 0141277+050532 39  +105 05
    SL-12 R/B(2) geostationary
    15181 84 078F   0433 F 20080920210614000 56 15 0154493+072401 39  +115 05
    INTELSAT 502 geostationary
    12089 80 098A   0433 F 20080920211840000 56 15 2128508-073838 39  +115 05
    12089 80 098A   0433 F 20080920212322000 56 15 2133338-072940 39  +115 05
    SL-12 R/B(2) geostationary
    28119 03 053E   0433 F 20080920220504000 56 15 0310111+021940 39  +125 05
    RADUGA 32 geostationary
    23448 94 087A   0433 F 20080920220504000 56 15 0311078+024052 39  +120 05
    SUPERBIRD 6 geostationary
    28218 04 011A   0433 F 20080920220504000 56 15 0312082+025315 39  +115 05
    
    Notes:
    ------
    (1) Another evening messed up by cloud and cirrus eventually forcing me
        to stop. Ive had one GOOD night  since April 2008!
    
    (2) ESA objects 96103 and 96132 probably several magnitudes fainter than
        that reported. I had to track on them with relatively long exposures
        so perhaps as much as 4 magnitudes fainter than magnitude given above.
    
    Cheers
    Greg
    
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