Optical 19 Oct 2011

From: Greg Roberts (grr@telkomsa.net)
Date: Thu Oct 20 2011 - 12:02:35 UTC

  • Next message: Peter Wakelin: "SATOBS 2011 October 20"

    Observations 19 Oct 2011
    ----------------------------
    
    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 135mm focal length f/2.5 lens,integrating for 128 fields
    which is equivalent to a max exposure of 2.56 seconds maximum
    per image, but dependent on sky brightness. Field of view
    2.4 x 1.8 degrees.
    Individual frames are video time stamped with GPS derived signal.
    Images processed and measured manually.
    
    (2)Meade DSI Pro II Monochrome CCD camera without filters.
    using integration times of 05 sec min to 30 seconds maximum
    depending on brightness of sky in particular area.No image
    processing done but dark field applied.
    Used with 102mm aperture f/2.56 refractor ,field of view 84 x 63
    arc minutes. 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 checked against GPS signal.
    Images processed and automatically reduced using APEX.
    
    Site 0433 : Longitude 18.51294 deg East, Latitude -33.94058 deg,
    Elevation 10 metres-situated in Pinelands (Cape Town),South Africa
    
    
    
    FOR CLASSIFIED.TLE:
    --------------------------------------
    19460 88 078A   0433 G 20111019183658900 16 15 0537273-585630 28 +070 05
    19460 88 078A   0433 G 20111019183725100 16 15 0506146-572019 28 +065 05
    19460 88 078A   0433 G 20111019183756800 16 15 0428559-541650 28 +060 05
    19460 88 078A   0433 G 20111019183822100 16 15 0400479-505301 28 +055 05
    19976 89 035A   0433 G 20111019190305000 16 15 0035522+035250 28
    19976 89 035A   0433 G 20111019190420000 16 15 0036595+035448 28
    19976 89 035A   0433 G 20111019190516000 16 15 0037520+035632 28
    23855 96 026A   0433 G 20111019195326500 16 15 2259204+003744 28
    23855 96 026A   0433 G 20111019195425500 16 15 2300136+003944 28
    23855 96 026A   0433 G 20111019195509500 16 15 2300537+004113 28  +112 01
    23893 96 029A   0433 G 20111019201646500 16 15 2340402-675026 88
    23893 96 029A   0433 G 20111019201843000 16 35 0033036-565801 29
    23893 96 029A   0433 G 20111019202046000 16 15 0102104-442901 29
    24680 96 072A   0433 G 20111019192352000 16 15 0639073-552247 28  +065 05
    24680 96 072A   0433 G 20111019192416600 16 15 0619420-552252 28  +060 05
    24680 96 072A   0433 G 20111019192444800 16 15 0555121-550050 28  +050 05
    24680 96 072A   0433 G 20111019192515500 16 15 0525588-540148 28  +045 05
    24680 96 072A   0433 G 20111019192543300 16 15 0458105-522912 28  +045 05
    25669 99 017A   0433 G 20111019195745500 16 15 1953177-004542 48
    25669 99 017A   0433 G 20111019195849500 16 15 1954460-010007 38
    25669 99 017A   0433 G 20111019195938500 16 15 1955542-011112 38
    25669 99 017A   0433 G 20111019200115500 16 15 1958042-013223 38
    29249 06 027A   0433 G 20111019203725000 16 15 2156494+384518 28
    29249 06 027A   0433 G 20111019204103000 16 15 2201116+371230 38
    29249 06 027A   0433 G 20111019204230000 16 15 2202584+363327 28
    33490 09 001A   0433 G 20111019174203500 16 15 2242472+034210 28
    33490 09 001A   0433 G 20111019174315000 16 15 2243594+034303 38
    33490 09 001A   0433 G 20111019174436000 16 15 2245195+034403 28
    35815 09 047A   0433 G 20111019191103500 16 15 2349365+052238 28
    35815 09 047A   0433 G 20111019191144500 16 15 2350180+052237 28
    35815 09 047A   0433 G 20111019191220500 16 15 2350541+052238 28
    37228 10 062G   0433 G 20111019180952600 16 15 1920043+272324 28  +070 05
    37228 10 062G   0433 G 20111019181039200 16 15 1927572+175022 28  +065 05
    37228 10 062G   0433 G 20111019181153000 16 15 1944041-080400 28  +060 05
    
    STRAYS SEEN:
    ------------------
    10062 77 048B   0433 G 20111019174336500 16 15 2242030+043648 28  +035 05
    10490 77 108B   0433 G 20111019195023000 16 15 2204210+025952 28  +041 05
    15821 85 047A   0433 G 20111019204548500 16 15 1309402-760721 28  +070 05
    24809 97 025B   0433 G 20111019195007300 16 15 2212359+031814 28  +045 05
    24870 97 034B   0433 G 20111019192320300 16 15 0640394-561152 28  +070 05
    25638 99 009A   0433 G 20111019212645000 16 15 0226359+032614 77
    25638 99 009A   0433 G 20111019212818000 16 15 0228085+032713 28
    25638 99 009A   0433 G 20111019212924000 16 15 0229154+032754 28
    25638 99 009A   0433 G 20111019213028000 16 15 0230191+032835 18
    25964 99 062D   0433 G 20111019193912200 16 15 2126371+135606 28  +055 05
    27825 03 026A   0433 G 20111019174203500 16 15 2243184+033716 28
    27825 03 026A   0433 G 20111019174315000 16 15 2244307+033812 38
    27825 03 026A   0433 G 20111019174436000 16 15 2245507+033913 28
    27811 03 020A   0433 G 20111019191103500 16 15 2349392+052045 28
    27811 03 020A   0433 G 20111019191144500 16 15 2350208+052044 19
    27811 03 020A   0433 G 20111019191220500 16 15 2350567+052045 28
    36103 09 065C   0433 G 20111019193928500 16 15 2124333+121040 48
    36103 09 065C   0433 G 20111019194017500 16 15 2127480+110223 38
    36103 09 065C   0433 G 20111019194104500 16 15 2130468+095922 38
    36103 09 065C   0433 G 20111019194233500 16 15 2136190+080123 48
    36103 09 065C   0433 G 20111019194326500 16 15 2139297+065316 48
    37266 10 070C   0433 G 20111019212645000 16 15 0228492+032116 57
    37266 10 070C   0433 G 20111019212818000 16 15 0230179+032422 28
    37266 10 070C   0433 G 20111019212924000 16 35 0231364+034428 19
    37266 10 070C   0433 G 20111019213028000 16 15 0232252+032855 18
    
    NOTES:
    --------------
    
    (1) Much cloud at start of session - reminded me why I dont like
        observing leo sats - at least with high altitude satellites you
        can wait for the cloud to drift by and give a gap.
    
    (2) DSP-F19  nice flashing.
    
    (3) As expected Lacrosse 3 not seen so probably deorbited....
    
    Cheers
    Greg 
    
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