Optical 23 April 2011

From: Greg Roberts (grr@telkomsa.net)
Date: Mon Apr 25 2011 - 07:24:50 UTC

  • Next message: Pradeep Mohandas: "Re: Updated Resourcesat 2 elements"

    Observations 23 April 2011
    -------------------------------
    
    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 sensitivity
    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.
    
    Meade DSI Pro II Monochrome CCD camera without filters.
    using integration times of 05 sec min to 30 seconds maximum
    depending on brightness of sky in particular area.No image
    processing done but dark field applied.
    Used with 102mm aperture f/2.56 refractor ,field of view 84 x 63
    arc minutes. 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 checked against GPS signal.
    Images processed and automatically reduced using APEX.
    
    Site 0433 : Longitude 18.51294 deg East, Latitude -33.94058 deg,
    Elevation 10 metres-situated in Pinelands (Cape Town),South Africa
    
    
    FOR CLASSFD.TLE:
    ======================
    10941 78 058A   0433 P 20110423171842000 16 15 1235027+071709 38  +108 20
    10941 78 058A   0433 P 20110423172009000 16 15 1236147+071558 28  +105 05
    10941 78 058A   0433 P 20110423172054000 16 15 1236301+071540 18
    10941 78 058A   0433 P 20110423172136000 16 15 1237194+071505 38
    11558 79 086A   0433 P 20110423165851000 16 15 1053361+064406 97
    11558 79 086A   0433 P 20110423165931000 16 15 1054063+064313 18
    11558 79 086A   0433 P 20110423170007000 16 15 1052531+064257 18
    11558 79 086A   0433 P 20110423170043000 16 15 1055021+064129 97
    14675 84 009A   0433 P 20110423183934000 16 15 0754068+114959 28  +095 05
    14675 84 009A   0433 P 20110423184011500 16 15 0754310+114853 18  +115 01
    14675 84 009A   0433 P 20110423184054500 16 15 0755063+114807 38
    14675 84 009A   0433 P 20110423184139500 16 15 0755422+114719 38
    14930 84 037A   0433 P 20110423193514000 16 15 1326044+024551 28  +120 05
    14930 84 037A   0433 P 20110423193555000 16 15 1326439+024419 89  +129 16
    14930 84 037A   0433 P 20110423193636000 16 15 1327216+023957 29
    14930 84 037A   0433 P 20110423193740000 16 15 1328225+023538 58
    15543 85 010B   0433 P 20110423173954000 16 15 1307461+063428 28  +085 05
    15543 85 010B   0433 P 20110423174040000 16 15 1308305+063051 28  +085 05
    15543 85 010B   0433 P 20110423174114000 16 15 1309018_062817 28  +085 05
    15543 85 010B   0433 P 20110423174152500 16 15 1309398+062528 38
    19976 89 035A   0433 P 20110423170838000 16 15 0914150+113529 38
    19976 89 035A   0433 P 20110423170919000 16 15 0914544+113455 28  +108 01
    19976 89 035A   0433 P 20110423170958000 16 15 0915314+113423 18
    19976 89 035A   0433 P 20110423171036000 16 15 0916079+113351 28
    20963 90 097B   0433 P 20110423175159000 16 15 1326458+090354 28  +125 05
    20963 90 097B   0433 P 20110423175255500 16 15 1327421+090035 28
    20963 90 097B   0433 P 20110423175457000 16 15 1329424+085157 28  +125 05
    20963 90 097B   0433 P 20110423175530000 16 15 1330157+085014 18
    20963 90 097B   0433 P 20110423175623000 16 15 1331080+084627 28
    20963 90 097B   0433 P 20110423175658000 16 15 1331431+084411 28  +125 05
    24737 97 008A   0433 P 20110423182823000 16 15 0958549+155438 97  +133 02
    24737 97 008A   0433 P 20110423183012000 16 15 1000446+155419 28
    24737 97 008A   0433 P 20110423183144000 16 15 1002186+155402 28  +134 02
    24737 97 008A   0433 P 20110423183237500 16 25 1003213+155384 88  +128 31
    25336 98 029A   0433 P 20110423182222500 16 15 0635449+142028 97
    25336 98 029A   0433 P 20110423182310500 16 15 0636337+142019 28
    25336 98 029A   0433 P 20110423182400500 16 15 0637248+142009 28
    25336 98 029A   0433 P 20110423182500000 16 15 0638250+141954 38  +120 01
    25967 99 063A   0433 P 20110423174309000 16 15 1303160+072323 28  +105 05
    25967 99 063A   0433 P 20110423174505000 16 15 1305106+072135 28  +105 05
    25967 99 063A   0433 P 20110423174540000 16 15 1305451+072058 28  +105 05
    25967 99 063A   0433 P 20110423174612000 16 15 1306192+072045 28  +105 05
    26635 00 080A   0433 P 20110423184442000 16 15 0754195+100531 28  +110 05
    26635 00 080A   0433 P 20110423184549000 16 15 0755271+100546 28  +110 05
    26635 00 080A   0433 P 20110423184623500 16 15 0756024+100619 28  +127 03
    26635 00 080A   0433 P 20110423184716500 16 15 0756549+100638 28
    26880 01 033A   0433 P 20110423174736000 16 15 1259219+100314 18  +121 05
    26880 01 033A   0433 P 20110423174837000 16 15 1300233+100212 77  +116 04
    26880 01 033A   0433 P 20110423174920000 16 15 1301058+100123 28  +115 05
    26880 01 033A   0433 P 20110423174954000 16 15 1301396+100053 28
    27168 02 001A   0433 P 20110423171159000 16 15 0923277+100226 28
    27168 02 001A   0433 P 20110423171304000 16 15 0924328+100225 18
    27168 02 001A   0433 P 20110423171345000 16 15 0925135+100224 28
    27168 02 001A   0433 P 20110423171424000 16 15 0925527+100223 18
    27169 02 001B   0433 P 20110423183504500 16 15 0944222+081022 28
    27169 02 001B   0433 P 20110423183604500 16 15 0945229+081006 18
    27169 02 001B   0433 P 20110423183649500 16 15 0946078+080949 97  +118 01
    27169 02 001B   0433 P 20110423183735500 16 15 0946547+080935 97
    28117 03 057A   0433 P 20110423172243000 16 15 1240399+055245 88
    28117 03 057A   0433 P 20110423172620000 16 15 1242202+054809 28  +105 05
    28117 03 057A   0433 P 20110423172826000 16 15 1244266+054651 28
    28117 03 057A   0433 P 20110423172928000 16 15 1245274+054606 28  +105 05
    28117 03 057A   0433 P 20110423173010000 16 15 1246027+054422 47  +106 03
    32287 07 054A   0433 P 20110423170242000 16 15 0930338+043159 38
    32287 07 054A   0433 P 20110423170348000 16 15 0931383+043100 28
    32287 07 054A   0433 P 20110423170444000 16 15 0932359+043154 48
    32287 07 054A   0433 P 20110423170552000 16 15 0933433+043154 28  +137 02
    32287 07 054A   0433 P 20110423170636000 16 15 0934274+043151 28
    32378 07 060A   0433 P 20110423192620500 16 15 0852310+152557 28
    32378 07 060A   0433 P 20110423192748000 16 15 0901519+175408 28
    32378 07 060A   0433 P 20110423192905000 16 15 0909161+195232 38
    33490 09 001A   0433 P 20110423165310500 16 15 1009051+071221 28
    33490 09 001A   0433 P 20110423165427500 16 15 1010220+071127 38
    33490 09 001A   0433 P 20110423165529000 16 15 1011225+071024 28  +080 05
    33490 09 001A   0433 P 20110423165611000 16 15 1012058+071016 57
    33490 09 001A   0433 P 20110423165656000 16 15 1012506+070944 77
    37377 11 011A   0433 P 20110423181408000 16 15 0554117+100757 28  +110 05
    37377 11 011A   0433 P 20110423181531500 16 15 0555357+100714 28  +126 02
    37377 11 011A   0433 P 20110423181646500 16 15 0556513+100635 38
    37377 11 011A   0433 P 20110423181745000 16 15 0557514+100614 28  +110 05
    
    STRAYS SEEN:
    =====================
    32770 08 018D   0433 P 20110423184623500 16 25 0758060+095574 19  +108 43
    26694 01 005A   0433 P 20110423183504500 16 15 0944040+084739 28  +121 02
    26694 01 005A   0433 P 20110423183604500 16 15 0945050+084752 18
    26694 01 005A   0433 P 20110423183649500 16 15 0945499+084804 97  +124 01
    26694 01 005A   0433 P 20110423183735500 16 15 0946365+084813 18
    23571 95 023A   0433 P 20110423172826000 16 15 1246552+051258 28
    23571 95 023A   0433 P 20110423173010000 16 15 1248386+051256 25
    25484 98 053K   0433 P 20110423170636000 16 35 0935722+042797 29
    27825 03 026A   0433 P 20110423165310500 16 15 1008357+071800 28
    27825 03 026A   0433 P 20110423165427500 16 15 1009527+071706 38
    27825 03 026A   0433 P 20110423165611000 16 15 1011363+071554 57
    27825 03 026A   0433 P 20110423165656000 16 15 1012211+071522 77
    26863 01 029A   0433 P 20110423183012000 16 15 1002589+153925 28
    26863 01 029A   0433 P 20110423183144000 16 25 1004580+153957 78
    26863 01 029A   0433 P 20110423183237500 16 15 1005275+153920 28  +132 01
    23571 95 023A   0433 P 20110423172620000 16 15 1244477+051326 28  +105 05
    23571 95 023A   0433 P 20110423172928000 16 15 1247564+051301 28  +105 05
    32770 08 018D   0433 P 20110423184442000 16 15 0753510+100529 28  +130 05
    27508 02 040A   0433 P 20110423200239000 16 15 0902463+052501 28
    27508 02 040A   0433 P 20110423200450000 16 15 0904580+052502 18  +135 02
    27508 02 040A   0433 P 20110423200549000 16 15 0905574+052504 38  +134 01
    27508 02 040A   0433 P 20110423200710000 16 15 0907179+052504 28  +134 02
    27525 02 043A   0433 P 20110423173954000 16 15 1306082+070005 28  +130 05
    
    Notes:
    -----------
    
    (1) My winter has arrived ! Had a difficult observing session as the dew
        cap heaters on the telescope objectives could not cope with the very
        heavy dew which misted everything over and caused about a two
        magnitude drop. Since the images were slightly out of focus as a
        result of this the seeing was calculated as about 24 arc seconds!
        APEX could only process about half the images- the rest I had to
        do manually.
    
    (2) Did a search for AEHF1 which took at least an hour and saw ZERO.
    
    Cheers
    Greg
    
    
    _______________________________________________
    Seesat-l mailing list
    http://mailman.satobs.org/mailman/listinfo/seesat-l
    



    This archive was generated by hypermail 2b29 : Mon Apr 25 2011 - 07:44:50 UTC