Obs 11 April 2006-all

From: Greg Roberts (grr@iafrica.com)
Date: Wed Apr 12 2006 - 11:07:45 EDT

  • Next message: Russell Eberst: "2006APR12.OBS"

    Observations 11 Apr 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 15 - 150mm focal length f/2.8 telephoto 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
    
    Conditions poor because of bright full moon.
    
    FOR CLASSFD.TLE:
    ==================
    
    28646 05 016A   0433 P 20060411170428600 56 15 0714269+250007 39  +050 05
    28646 05 016A   0433 P 20060411170533300 56 15 0814066+105624 39  +040 05
    28646 05 016A   0433 P 20060411170642100 56 15 0939446-102808 39  +020 05
    23533 95 015A   0433 P 20060411171336400 56 15 1141541-380822 39  +052 05
    23533 95 015A   0433 P 20060411171422600 56 15 1055452-241228 39  +051 05
    23533 95 015A   0433 P 20060411171523900 56 15 1008206-032434 39  +054 05
    21798 91 082A   0433 P 20060411171606100 56 15 0859356-252057 39  +050 05
    21798 91 082A   0433 P 20060411171718100 56 15 0817569+034635 39  +060 05
    21798 91 082A   0433 P 20060411171804500 56 15 0800206+171049 39  +060 05
    13172 82 041C   0433 P 20060411172500500 56 15 1526198-680536 39  +075 05
    13172 82 041C   0433 P 20060411172610200 56 15 1229189-632600 39  +050 05
    13172 82 041C   0433 P 20060411172854400 56 15 0854199+115054 39  +050 05
    28096 03 054B   0433 P 20060411173305400 56 15 0800209+274951 39  +045 05
    28096 03 054B   0433 P 20060411173434500 56 15 0841523+135519 39  +040 05
    28096 03 054B   0433 P 20060411173619400 56 15 0948455-094139 39  +035 05
    90047 06 521A   0433 P 20060411175753500 56 15 1228593-175347 39  +100 05
    90047 06 521A   0433 P 20060411175923300 56 15 1233392-175204 39  +100 05
    90047 06 521A   0433 P 20060411175429300 56 15 1218452-175615 39  +105 05
    23947 96 038C   0433 P 20060411181309500 56 15 0505508-492003 39  +090 05
    23947 96 038C   0433 P 20060411181530300 56 15 0606141-454517 39  +085 05
    23947 96 038C   0433 P 20060411181842300 56 15 0707311-390223 39  +080 05
    25017 97 064A   0433 P 20060411182336500 56 15 2046531-720431 39  +043 05
    25017 97 064A   0433 P 20060411182405100 56 15 1926032-725629 39  +040 05
    25017 97 064A   0433 P 20060411182418400 56 15 1844236-723026 39  +040 05
    14180 83 056G   0433 P 20060411182653100 56 15 0552209+012603 39  +085 05
    14180 83 056G   0433 P 20060411182734000 56 15 0556488-035459 39  +080 05
    14180 83 056G   0433 P 20060411182845700 56 15 0605155-145446 39  +020 05
    14144 83 056D   0433 P 20060411183038400 56 15 0539487-004153 39  +090 05
    14144 83 056D   0433 P 20060411183124400 56 15 0543570-064014 39  +088 05
    14144 83 056D   0433 P 20060411183254100 56 15 0552002-202801 39  +085 05
    28095 03 054A   0433 P 20060411183337600 56 15 0306419-421121 39  +055 05
    28095 03 054A   0433 P 20060411183439000 56 15 0237594-523241 39  +053 05
    28095 03 054A   0433 P 20060411183521100 56 15 0208520-590013 39  +053 05
    28097 03 054C   0433 P 20060411183337600 56 15 0309025-410932 39  +055 05
    28097 03 054C   0433 P 20060411183439000 56 15 0242514-513543 39  +053 05
    28097 03 054C   0433 P 20060411183521100 56 15 0215062-581324 39  +053 05
    14112 83 056A   0433 P 20060411183752200 56 15 0510018-221933 39  +090 05
    14112 83 056A   0433 P 20060411183822900 56 15 0510148-271133 39  +085 05
    14112 83 056A   0433 P 20060411183942300 56 15 0508313-410405 39  +080 05
    90020 04 539A   0433 P 20060411185102900 56 15 0420491-202228 39  +080 05
    90020 04 539A   0433 P 20060411185356800 56 15 0414258-322146 39  +080 05
    90020 04 539A   0433 P 20060411185638100 56 15 0359275-462416 39  +078 05
    90020 04 539A   0433 P 20060411185914300 56 15 0320306-620230 39  +075 05
    90020 04 539A   0433 P 20060411190226000 56 15 2358326-765853 39  +080 05
    22519 92 086C   0433 P 20060411194621100 56 15 0533356-385410 39  +090 05
    22519 92 086C   0433 P 20060411194834200 56 15 0539319-432745 39  +090 05
    22519 92 086C   0433 P 20060411195052600 56 15 0546204-483807 39  +080 05
    28385 04 034B   0433 P 20060411195557100 56 15 1219001-525108 39  +085 05
    28385 04 034B   0433 P 20060411195815400 56 15 1228234-512707 39  +080 05
    28385 04 034B   0433 P 20060411200150400 56 15 1242412-490412 39  +080 05
    90027 04 841A   0433 P 20060411201134500 56 15 0608307-273538 39  +080 05
    90027 04 841A   0433 P 20060411201334900 56 15 0654477-205147 39  +075 05
    90027 04 841A   0433 P 20060411201527500 56 15 0730065-141854 39  +073 05
    90027 04 841A   0433 P 20060411201930700 56 15 0825175-014416 39  +070 05
    90027 04 841A   0433 P 20060411202313400 56 15 0859086+070520 39  +075 05
    90033 05 558A   0433 P 20060411204757900 56 15 1033044+080635 39  +095 05
    90033 05 558A   0433 P 20060411204940300 56 15 1034492+080644 39  +095 05
    90037 05 638A   0433 P 20060411205346800 56 15 1521449+021537 39  +075 05
    90038 05 638B   0433 P 20060411205346800 56 15 1522517+013348 39  +080 05
    90035 05 625A   0433 P 20060411205538100 56 15 1435481+051645 39  +085 05
    
    
    Strays seen:
    ================
    
    Cosmos 2315 rocket
    23604 95 032B   0433 P 20060411175532300 56 15 1225174-185316 39  +050 05
    Cosmos 272 rocket
    03819 69 024B   0433 P 20060411180812500 56 15 1250220-553431 39  +070 05
    Cosmos 1356 rocket
    13154 82 039B   0433 P 20060411181233600 56 15 0445034-502407 39  +040 05
    Iridium 64
    25287 98 021C   0433 P 20060411181558500 56 15 0614132-451813 39  +075 05
    Surfsat rocket
    23711 95 059B   0433 P 20060411182220800 56 15 2007290-724243 39  +060 05
    Intelsat 904 geostationary
    27380 02 007A   0433 P 20060411205538100 56 15 1436275+051753 39  +085 05
    
    Notes:
    ======
    
    (1) For all satellites,other than the geostationary satellites, I used
        the telephoto lens at 75mm focal length. This gave a field of view
        of about 4.1 by 3.3 degrees and stars down to magnitude 10.5-11.0
        could be seen in real time on the monitor. LEO satellite limit about
        magnitude 8 in non track mode. Some vignetting as well as pronounced
        field curvature at edge of field but being able to vary the focal
        length from 15 to 150mm makes this a useful lens. Originally came
        from a commercial broadcasting TV camera and manufactured in France
        several decades ago.
    
    (2) For the geostationary satellites I used the lens at 150mm focal
        length. This gave a field of view of 2.34 x 1.84 degrees and could
        see stars in real time on the video monitor down to magnitude 12.
        Despite the full moon the geostationary satellites were quite easy.
    
    (3) No luck with trying to see #90006 - I reckon it aint there any more
        as I have now done two plane searches down to about magnitude +9
        as well as trying to track on predictions with different time
    off-sets.
        I am now at a loss what to try next :-))
    
    Cheers
    Greg
    
    
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