Optical 18 November 2008

From: Greg Roberts (grr@telkomsa.net)
Date: Wed Nov 19 2008 - 14:47:26 UTC

  • Next message: David Brierley: "DMB Obs November 19 a.m."

    Observations 18 November 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 50mm focal length f/1.8 lens,integrating for 128 frames
    which is equivalent to a max exposure of 2.56 seconds maximum
    per image. Field of view 6.8 x 5.4 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:
    --------------------------
    32379 07 060B   0433 G 20081118181111000 56 15 2117045-334703 39  +080 05
    32379 07 060B   0433 G 20081118181431000 56 15 2134326-445521 39  +080 05
    32379 07 060B   0433 G 20081118181541700 56 15 2143240-493458 39  +077 05
    32379 07 060B   0433 G 20081118181750700 56 15 2208440-591707 39  +075 05
    32379 07 060B   0433 G 20081118181955400 56 15 2258550-693510 39  +070 05
    32379 07 060B   0433 G 20081118182116000 56 15 0014060-755304 39  +070 05
    90046 05 864A   0433 G 20081118182558000 56 15 2054035+342129 39  +105 05
    90046 05 864A   0433 G 20081118183859000 56 15 2109172+270817 39  +090 05
    90046 05 864A   0433 G 20081118185952100 56 15 2141500+054649 39  +075 05
    90046 05 864A   0433 G 20081118190141800 56 15 2145520+023249 39  +070 05
    90046 05 864A   0433 G 20081118192433300 56 15 0800500-685344 39  +065 05
    22787 93 056A   0433 G 20081118192903000 56 15 0121494+020800 39  +105 05
    22787 93 056A   0433 G 20081118193129000 56 15 0124154+021206 39  +105 05
    90075 05 605D   0433 G 20081118200244000 56 15 0244041+115922 39  +115 05
    90075 05 605D   0433 G 20081118200636000 56 15 0249110+120551 39  +115 05
    22915 93 074A   0433 G 20081118200921000 56 15 0408524+035250 39  +110 05
    22915 93 074A   0433 G 20081118201313000 56 15 0412443+035733 39  +110 05
    90066 05 667A   0433 G 20081118201453000 56 15 0404261+044630 39  +100 05
    90066 05 667A   0433 G 20081118201635000 56 15 0406095+044906 39  +100 05
    90022 04 764A   0433 G 20081118204107000 56 15 0552015+111818 39  +120 05
    90022 04 764A   0433 G 20081118204357000 56 15 0554455+112722 39  +115 05
    25336 98 029A   0433 G 20081118210404000 56 15 0406415+114349 39  +075 05
    25336 98 029A   0433 G 20081118210450000 56 15 0407254+114431 39  +075 05
    96020 96 520A   0433 G 20081118213948000 56 15 0528536+110153 39  +125 05
    96020 96 520A   0433 G 20081118214526000 56 15 0533321+110442 39  +125 05
    06691 73 040A   0433 G 20081118214800000 56 15 0107520+154901 39  +100 05
    06691 73 040A   0433 G 20081118215531000 56 15 0115215+160628 39  +100 05
    24680 96 072A   0433 G 20081118195548600 56 15 0929350-663442 39  +055 05
    24680 96 072A   0433 G 20081118195627100 56 15 0831380-682818 39  +050 05
    24680 96 072A   0433 G 20081118195700700 56 15 0717310-684656 39  +045 05
    24680 96 072A   0433 G 20081118195748600 56 15 0507320-630611 39  +035 05
    22639 93 026B   0433 G 20081118205033500 56 15 0554350-762133 39  +075 05
    22639 93 026B   0433 G 20081118205141400 56 15 0928410-722830 39  +080 05
    22639 93 026B   0433 G 20081118205219600 56 15 1016550-682442 39  +085 05
    28384 04 034A   0433 G 20081118211517700 56 15 0105140+261521 39  +070 05
    28384 04 034A   0433 G 20081118211650700 56 15 0114320+282210 39  +070 05
    
    Strays seen:
    =============
    SL-12 R/B(2) geostationary
    22624 93 013D   0433 G 20081118185414000 56 15 0129152-005719 39  +120 05
    SL-12 R/B(2) geostationary
    23270 94 060D   0433 G 20081118185414000 56 15 0132020-004831 39  +120 05
    SL-3 R/B variable
    09662 77 002B   0433 G 20081118192247700 56 15 0802590-680326 39  +055 05
    SL-8 R/B steady
    13649 82 109B   0433 G 20081118192903000 56 15 0122292+020528 39  +035 05
    SL-12 R/B(2) geostationary
    15581 85 016F   0433 G 20081118200636000 56 15 0251258+114243 39  +120 05
    METEOSAT 7 geostationary, variable
    24932 97 049B   0433 G 20081118200921000 56 15 0411490+040202 39  +125 05
    INTELSAT 702 geostationary
    23124 94 034A   0433 G 20081118201453000 56 15 0405432+051909 39  +105 05
    INSAT 3E geostationary
    27951 03 043E   0433 G 20081118201453000 56 15 0406325+051943 39  +105 05
    ARIANE 5 R/B range 33600 kms
    27832 03 028C   0433 G 20081118222344000 56 15 0458090+121651 39  +110 05
    SKYNET 4E geostationary , steady
    25639 99 009B   0433 G 20081118222828000 56 15 0452172+070857 39  +120 05
    EXPRESS AM1 geostationary, steady
    28463 04 043A   0433 G 20081118222947000 56 15 0514311+052444 39  +105 05
    HELLAS-SAT 2 geostationary
    27811 03 020A   0433 G 20081118222947000 56 15 0509561+052511 39  +105 05
    BLOCK DM-SL R/B
    29521 06 049B   0433 G 20081118222828000 56 15 0452568+071520 39  +110 05
    GALS 1 geostationary, variable
    22963 94 002A   0433 G 20081118222828000 56 15 0454132+074520 39  +125 05
    COSMOS 44
    00876 64 053A   0433 G 20081118181411700 56 15 2142130-430845 39  +035 05
    ICESAT steady
    27642 03 002A   0433 G 20081118185537500 56 15 0138060+010127 39  +055 05
    IRIDIUM 8 steady
    24792 97 020A   0433 G 20081118192642500 56 15 0110030+024254 39  +050 05
    SL-8 R/B variable
    16766 86 042J   0433 G 20081118192951300 56 15 0117070+004232 39  +065 05
    COSMOS 860 steady
    09486 76 103A   0433 G 20081118193435500 56 15 0058490+034841 39  +045 05
    SL-14 R/B
    14033 83 037B   0433 G 20081118205219600 56 15 1001330-651040 39  +050 05
    ATLAS 2AS Centaur, range 8900 kms
    26072 00 007B   0433 G 20081118214629500 56 15 0101570+144002 39  +075 05
    ARIANE 5 R/B, range 9830 kms, steady
    29275 06 033D   0433 G 20081118215412000 56 15 0105140+123244 39  +065 05
    BREEZE M DEBRI, range 13800 kms
    28870 05 036C   0433 G 20081118221032900 56 15 0527100+231007 39  +085 05
    
    Notes:
    -------
    
    (1) Another good night mainly spent in trying to observe the more
        difficult objects. Changed the "finder" camera to a more wide angle
        lens which means more strays seen.
    
    (2) Did a fairly intensive search for VORTEX 6 but not seen so has changed
        its orbit. I have not yet given up on this object.
    
    (3) MERCURY 1 also not found so this means both MERCURY 1 and MERCURY 2
        are "lost" for the moment.
    
    (4) Could not find DSP-F12. I doubt this is operational so unlikely an
        orbit change
    
    (5) DSCS 3-08 found where it usually is so reason for not seeing it
        previous observing session was probaly phase angle
    
    (6) Observed 90075 again under better phase angle and no moonlight -
        now easy.
    
    (7) Searched for some ESA objects with following results
    
        96036  - not found
        96041  - not found - should have been right next to HIMAWARI 2
                      but both not seen
        96044  - not found
        96085  - not found
    
        The above objects are probably too faint for my normal system,
        ie fainter than magnitude +14. One of the above has a period of
        1.0027 revs/day so is probably still operational and may have
        changed location.
    
    (8) Found 96020. Quite a difficult object - invisible for up to several
        minutes at a time then visible for a few minutes so appears to
        have a long slow variation.
    
    (9) 90022 is variable. This is probably MAGNUM-2 rocket, #20357,
        89090D
    
    Cheers
    Greg
    
    
     
    
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