91086-28 Nov 2006

From: Greg Roberts (grr@telkomsa.net)
Date: Wed Nov 29 2006 - 03:12:38 EST

  • Next message: Greg Roberts: "Optical 28 Nov 2006"

    Observations 28 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.
    
    Site 0433 : Longitude 18.51294 deg East, Latitude  33.94058 deg S,
    Elevation 10 metres - situated in Pinelands (Cape Town), South Africa
    
    
    Unknown  #91086
    --------------------
    
    91086 06 829A   0433 G 20061128181309100 56 15 2139340+014812 39  +040 05
    91086 06 829A   0433 G 20061128181358200 56 15 2228350+043848 39  +035 05
    91086 06 829A   0433 G 20061128181458300 56 15 2349180+092510 39  +030 05
    91086 06 829A   0433 G 20061128181534300 56 15 0046300+122740 39  +025 05
    91086 06 829A   0433 G 20061128181602900 56 15 0132200+142924 39  +025 05
    91086 06 829A   0433 G 20061128181629000 56 15 0212220+155626 39  +030 05
    91086 06 829A   0433 G 20061128181655900 56 15 0249310+170043 39  +035 05
    91086 06 829A   0433 G 20061128181733600 56 15 0333390+175239 39  +040 05
    
    
    Notes:
    -------
    (1) Thanks to an excellant orbit from Ted tracking this last night was
        a piece of cake. Satellite was within 1 second and geometry virtually
        spot on. Teds orbit shows the object to be in an orbit 240 x 12462kms,
        period 238.11 mins and inclination 27.46 degrees. I observe the
        satellite going towards perigee but it disappears over the horizon
        before it actually goes through perigee a minute or two later (very
        approx!)
    
    (2) Note magnitudes are very approximate - sky very bright.
    
    (3) I will try it again tonight but its now moved into my bright twilight
        so that whilst I will probably see the satellite I will probably not
        have any reference stars.  Its now up to other observers to observe it
        otherwise it will become lost.
    
    -------------------------------------------------------------------------
    
    Thanks Kevin for your input about using a radio link - Ill have to look
    into this before spending any money. Maybe Im lucky in this part of the
    world ( huh huh!!!) that the 2.4 Ghz band is clear of interference!
    
    
    Cheers
    Greg
    
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