Optical 25 Nov 2006

From: Greg Roberts (grr@telkomsa.net)
Date: Mon Nov 27 2006 - 02:08:54 EST

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    Observations 25 Nov 2006:
    -------------------------------------
    
    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 50mm focal length f/1.8 lens,integrating for 128 frames
    which is equivalent to an exposure of 2.56 seconds per image.
    
    Field of view 6.83 x 5.38 degrees
    
    Site 0433 : Longitude 18.51294 deg East, Latitude  33.94058 deg S,
    Elevation 10 metres - situated in Pinelands (Cape Town), South Africa
    
    Strays seen:
    ----------------
    
    SL-3 R/B
    08294 75 087B   0433 G 20061125185738400 56 15 2124410+031843 39  +070 05
    Noaa 9
    15427 84 123A   0433 G 20061125192352900 56 15 2154160+044009 39  +065 05
    Delta 2 R/B
    29512 06 047C   0433 G 20061125192722800 56 15 2144130+013855 39  +065 05
    SL-14 R/B
    20466 90 010B   0433 G 20061125194208600 56 15 2207200+034607 39  +040 05
    Globalstar M050
    25908 99 049B   0433 G 20061125194825100 56 15 2213460+035538 39  +070 05
    SL-14 R/B
    16496 86 006B   0433 G 20061125195035500 56 15 2208380+050252 39  +045 05
    Ariane 1 deb
    17130 86 019Z   0433 G 20061125195111400 56 15 2204220+024703 39  +070 05
    SL-8 R/B
    09510 76 108B   0433 G 20061125195730200 56 15 2223290+035004 39  +065 05
    Iridium 41
    25040 97 069B   0433 G 20061125200308200 56 15 2232120+021739 39  +055 05
    SL-8 R/B variable
    24773 97 017B   0433 G 20061125181812000 56 15 2045260+023130 39  +055 05
    SL-8 R/B variable
    14451 83 108B   0433 G 20061125182640700 56 15 2101210+040544 39  +060 05
    Thor Ablestar rocket
    00059 60 013B   0433 G 20061125183554700 56 15 2056480+015614 39  +062 05
    Cosmos 2098 variable
    20774 90 078A   0433 G 20061125184128200 56 15 2114380+053813 39  +065 05
    SL-8 R/B  variable
    10011 77 036B   0433 G 20061125202035200 56 15 0622156-520759 39  +070 05
    Sicral 1 geostationary
    26694 01 005A   0433 G 20061125202624100 56 15 0152006+052034 39  +095 05
    Molniya 3-39 variable
    20813 90 084A   0433 G 20061125204754100 56 15 0624082-401637 39  +075 05
    SL-8 R/B
    06826 73 064B   0433 G 20061125205857300 56 15 0601357-450636 39  +075 05
    
    Notes:
    -----------
    
    (1) For nights when I dont do "routine" tracking Im considering putting
        up an "optical fence" to monitor a specific part of the sky and
        looking for unknown satellites. Currently the system consists of a
        MINTRON using a 50mm f/1.8 lens. I am hoping to get a faster 50mm
        lens as this will extend the magnitude gain, and add another camera
        so I can cover a larger area. For this time I was mainly sitting at
        azimuth 300, elevation 32 degrees - not a good part of the sky but
        choosen at random. This produced two unknowns.
    
    (2) I repeated this "experiment" on the 26th November on the same area
        and recorded at least 30 satellites in a 150 minute spell- will
        measure today and hopefully an unknown or two amongst them.
    
    (3) Anyone can do this kind of capture as the camera is stationary the
        entire time.
    
    
    Cheers
    Greg
    
    
    
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