Optical 30 June 2009

From: Greg Roberts (grr@telkomsa.net)
Date: Wed Jul 01 2009 - 11:07:29 UTC

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    Observations 30 June 2009
    --------------------------------
    
    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.
    
    Meade DSI Pro II Monochrome CCD camera without filters.
    using integration times of 5 sec min to 25 seconds maximum
    depending on brightness of sky in particular area.No image
    processing done, but some done automatically in the auto reduction
    software.
    
    Used with 4 inch SKYWATCHER refractor- model 1025 - fitted with home
    made focal reducur to give an f/2.56 system. Image scale is 6.56 arc
    sec/pixel and field of view 84.8 x 63.2 arc minutes. Shows 15th
    magnitude stars in real time with reasonably good conditions.
    
    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:
    ----------------------------
    
    14675 84 009A   0433 F 20090630205344000 16 15 1349281+003459 28  +106 01
    14675 84 009A   0433 F 20090630205503000 16 15 1350535+003233 28  +106 01
    14675 84 009A   0433 F 20090630205623000 16 15 1352193+003010 87  +106 01
    22519 92 086C   0433 F 20090630213858000 16 25 1253671-461967 19  +099 42
    22519 92 086C   0433 F 20090630214137000 16 15 1305241-502819 48  +097 01
    22519 92 086C   0433 F 20090630214209000 16 15 1307552-511758 28  +091 01
    22519 92 086C   0433 F 20090630214357000 16 15 1317083-540939 28  +103 01
    22519 92 086C   0433 F 20090630214413000 16 15 1318349-543456 48  +101 01
    23223 94 054A   0433 F 20090630214853000 16 15 1410302+080609 28  +106 01
    23223 94 054A   0433 F 20090630214951500 16 15 1411282+080445 28  +108 01
    23223 94 054A   0433 F 20090630215113500 16 15 1412506+080247 37  +110 01
    28546 04 050B   0433 F 20090630215343000 16 15 1605136+191518 38  +119 02
    28546 04 050B   0433 F 20090630215508000 16 15 1606408+191516 38  +122 01
    28546 04 050B   0433 F 20090630215654000 16 15 1608291+191511 28  +120 00
    33490 09 001A   0433 F 20090630213401000 16 15 1921315+024534 28  +080 00
    33490 09 001A   0433 F 20090630213459000 16 15 1922298+024601 28  +079 00
    33490 09 001A   0433 F 20090630213543000 16 15 1923135+024622 38  +079 00
    96098 96 598A   0433 F 20090630212215000 16 15 1513288-085318 48  +143 05
    96098 96 598A   0433 F 20090630212246000 16 15 1514004-085432 28  +151 05
    96098 96 598A   0433 F 20090630212355000 16 15 1515113-085643 19  +142 07
    96098 96 598A   0433 F 20090630212458000 16 15 1516141-085853 98  +134 05
    96098 96 598A   0433 F 20090630212530000 16 15 1516465-090002 58  +145 05
    
    STRAYS SEEN:
    --------------------
    THURAYA 2  GEOSTATIONARY - very close to USA 202
    27825 03 026A   0433 F 20090630213401000 16 15 1920014+024123 28  +104 00
    27825 03 026A   0433 F 20090630213543000 16 15 1921436+024209 38  +103 00
    
    Notes:
    ------
    (1) Main purpose was to search for unknown seen 27th June 2009-no luck
        so far
    
    (2) Treat observations of 96098 with care - if in any way suspect delete
        them - object very faint - had to use image as a "negative"  and also
        appeared variable. On limit of system because of waxing moon
    
    (3) Not seen - DEL4DEM - too low in sky and too faint for conditions
    
    (4) MITEX1 now attempted two times recently - not seen - almost certainly
        has done a major orbit change since last observed by amateurs-probably
        now lost to us.
    
    (5) Unable to locate INTELSAT-3F7- must be too faint for the 4inch
        refractor-could see it with the 6 inch reflector- does this mean I have
        to go back to the 6inch ?
    
    (6) In future, unless stated otherwise, all measuring is done automatically
         by the APEX-II software package.
    Cheers
    Greg
    
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