Optical 10 May 2012 Part 2

From: Greg Roberts (grr@telkomsa.net)
Date: Sun May 13 2012 - 14:56:46 UTC

  • Next message: Scott Tilley: "ST obs May 13, 2012"

    Observations 10 MAY 2012 PART2
    ----------------------------
    
    Cosatrak 1 (Computerised satellite Tracking System).
    
    FLI ML8300M CCD camera with mechanical shutter + Trimble GPS
    
    Used with NIKON ED AF NIKKOR 80-200mm f/2.8 telephoto lens
    set at 146 mm focal length. Field of view 6.9 x 5.3 degrees,
    image scale 7.60 arc sec/pixel.
    Time is accurate to within 50 milliseconds.
    
    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 E 20120510201141000 16 15 1016279+073640 38
    14675 84 009A   0433 E 20120510201355000 16 15 1018380+073545 38
    14675 84 009A   0433 E 20120510201650000 16 15 1020443+072752 38
    14675 84 009A   0433 E 20120510201911000 16 15 1022380+072314 38
    19976 89 035A   0433 E 20120510204147000 16 15 1426469+031534 38
    19976 89 035A   0433 E 20120510204453000 16 15 1430299+030925 38
    19976 89 035A   0433 E 20120510204718000 16 15 1433248+030348 38
    19976 89 035A   0433 E 20120510204855000 16 15 1435201+025958 38
    22787 93 056A   0433 E 20120510212430000 16 15 1441570+053147 38
    22787 93 056A   0433 E 20120510212737000 16 15 1445027+052324 38
    23132 94 035A   0433 E 20120510193328000 16 15 1433210+065750 78  +132 03
    23855 96 026A   0433 E 20120510213924000 16 15 1343269+031343 38
    23855 96 026A   0433 E 20120510214154000 16 15 1346159+030636 38
    23855 96 026A   0433 E 20120510213535000 16 15 1339128+032431 38
    23855 96 026A   0433 E 20120510213707000 16 15 1340560+032006 38
    25967 99 063A   0433 E 20120510195225000 16 15 1622277+040511 48  +113 02
    25967 99 063A   0433 E 20120510195753000 16 15 1627536+035832 48
    25967 99 063A   0433 E 20120510200448000 16 15 1634511+035100 48
    27168 02 001A   0433 E 20120510212430000 16 15 1446278+060851 38
    27168 02 001A   0433 E 20120510212737000 16 15 1449349+060510 38
    27168 02 001A   0433 E 20120510213049000 16 15 1452440+060015 38
    28117 03 057A   0433 E 20120510195225000 16 15 1617598+032900 38  +113 02
    28117 03 057A   0433 E 20120510195753000 16 15 1623262+032453 38
    28117 03 057A   0433 E 20120510200448000 16 15 1630229+032022 38
    28117 03 057A   0433 E 20120510200059000 16 15 1626338+032301 38
    28158 04 004A   0433 E 20120510195225000 16 15 1610161+053324 48  +110 03
    28158 04 004A   0433 E 20120510195753000 16 15 1615441+052633 48
    28158 04 004A   0433 E 20120510200448000 16 15 1622378+051726 48
    29241 06 024B   0433 E 20120510201141000 16 15 1014129+074834 38
    29241 06 024B   0433 E 20120510201355000 16 15 1016255+074829 38
    32287 07 054A   0433 E 20120510212430000 16 15 1432043+054938 38
    32287 07 054A   0433 E 20120510212737000 16 15 1435127+055012 38
    32287 07 054A   0433 E 20120510213049000 16 15 1438240+055000 38
    
    STRAYS SEEN:
    ----------------------------
    14318 83 089B   0433 E 20120510213924000 16 15 1345548+020523 38
    15385 84 114A   0433 E 20120510212430000 16 15 1448286+054558 38
    19919 89 027A   0433 E 20120510211212000 16 15 1355066+084242 38
    21789 91 079A   0433 E 20120510211650000 16 15 1400566+052930 38
    21964 92 027A   0433 E 20120510200059000 16 15 1621071+051049 38
    21989 92 032A   0433 E 20120510193602000 16 15 1437599+085522 19  +079 52
    22557 93 013A   0433 E 20120510211650000 16 15 1342245+074638 38
    22724 93 048B   0433 E 20120510193627000 16 15 1441344+081144 38
    22787 93 056A   0433 E 20120510213049000 16 15 1448098+051517 38
    22981 94 008A   0433 E 20120510193602000 16 15 1449405+051756 87  +122 53
    23571 95 023A   0433 E 20120510195225000 16 15 1620410+052424 38  +118 01
    23598 95 029A   0433 E 20120510194732000 16 15 1451460+065844 38
    23680 95 054A   0433 E 20120510195753000 16 15 1627272+025020 48
    23781 96 007A   0433 E 20120510212430000 16 15 1434233+080137 38
    23842 96 021A   0433 E 20120510193602000 16 15 1449581+051853 87  +114 53
    23847 96 022B   0433 E 20120510195225000 16 15 1614387+050556 29  +117 07
    23915 96 035A   0433 E 20120510195225000 16 15 1621064+051224 38  +114 01
    25237 98 013A   0433 E 20120510213535000 16 15 1353591+055953 38
    25473 98 052A   0433 E 20120510195225000 16 15 1606217+051214 38  +119 01
    25395 98 057A   0433 E 20120510212430000 16 15 1426056+052803 38
    25462 98 050A   0433 E 20120510212430000 16 15 1438294+053058 38
    25515 98 063A   0433 E 20120510211650000 16 15 1357587+053117 38
    25546 98 068A   0433 E 20120510193627000 16 15 1455244+054420 38
    25626 99 005A   0433 E 20120510193602000 16 15 1428168+052337 87  +114 54
    25673 99 018A   0433 E 20120510211650000 16 15 1400380+052922 38
    25785 99 033A   0433 E 20120510211650000 16 15 1349472+053421 38
    25967 99 063A   0433 E 20120510200059000 16 15 1631021+035449 38
    26108 00 016B   0433 E 20120510204453000 16 15 1441263+054813 38
    26243 00 019A   0433 E 20120510213924000 16 15 1350558+055529 38
    26369 00 028A   0433 E 20120510204453000 16 15 1434431+052434 38
    26394 00 036A   0433 E 20120510195225000 16 15 1617467+042046 48  +128 03
    26494 00 054A   0433 E 20120510212430000 16 15 1438197+052819 38
    26638 00 081A   0433 E 20120510212430000 16 15 1437250+053917 38
    26719 01 011A   0433 E 20120510212430000 16 15 1439516+052655 38
    26766 01 019A   0433 E 20120510195225000 16 15 1605412+051040 38  +133 03
    26853 01 025A   0433 E 20120510211650000 16 15 1349380+052905 38
    26892 01 037A   0433 E 20120510212737000 16 15 1438360+080632 38
    27299 02 002B   0433 E 20120510193602000 16 15 1443435+031812 19  +129 54
    27441 02 029A   0433 E 20120510201141000 16 15 1013580+080707 38
    27499 02 038A   0433 E 20120510213924000 16 15 1344062+053251 38
    27554 02 051A   0433 E 20120510195225000 16 15 1614210+050820 38  +116 01
    27780 03 015F   0433 E 20120510193627000 16 15 1432092+081600 38
    27811 03 020A   0433 E 20120510204453000 16 15 1447590+052645 38
    27951 03 043E   0433 E 20120510193602000 16 15 1450405+052113 77  +106 53
    28134 03 060A   0433 E 20120510193602000 16 15 1441349+052137 77  +110 53
    28137 04 001A   0433 E 20120510193602000 16 15 1449318+054814 18  +132 52
    28240 04 015D   0433 E 20120510195225000 16 15 1628056+045222 19  +127 08
    28542 05 005A   0433 E 20120510212430000 16 15 1442118+053102 38
    28899 05 044A   0433 E 20120510212430000 16 15 1424084+032650 38
    28936 06 003B   0433 E 20120510195225000 16 15 1608225+054759 39  +111 08
    29055 06 012A   0433 E 20120510211650000 16 15 1349471+052656 38
    29158 04 004A   0433 E 20120510200059000 16 15 1618496+052216 38
    29270 06 032A   0433 E 20120510213924000 16 15 1343566+052843 38
    29526 06 051A   0433 E 20120510212430000 16 15 1428247+052639 38
    31306 07 016A   0433 E 20120510211650000 16 15 1349420+052548 38
    32294 07 056B   0433 E 20120510193602000 16 15 1440376+051845 77  +104 53
    32373 07 058A   0433 E 20120510195225000 16 15 1612143+051225 38  +100 02
    33436 08 057A   0433 E 20120510211650000 16 15 1349421+053128 38
    34811 09 020B   0433 E 20120510211650000 16 15 1345475+061937 38
    35815 09 047A   0433 E 20120510193627000 16 15 1442011+052119 38
    36101 09 065A   0433 E 20120510204453000 16 15 1433598+052450 38
    36398 10 006B   0433 E 20120510211650000 16 15 1349565+061854 38
    36582 10 021B   0433 E 20120510213924000 16 15 1344486+053406 38
    36592 10 025A   0433 E 20120510212430000 16 15 1428255+053121 38
    33154 08 034B   0433 E 20120510212430000 16 15 1428243+053008 38
    33459 08 065A   0433 E 20120510213924000 16 15 1343561+052919 38
    34710 09 016A   0433 E 20120510213924000 16 15 1330186+052757 38
    34810 09 020A   0433 E 20120510213924000 16 15 1339040+053446 38
    34779 09 018A   0433 E 20120510212430000 16 15 1447188+063110 38
    36745 10 032B   0433 E 20120510212430000 16 15 1449066+052640 38
    37393 11 016B   0433 E 20120510193602000 16 15 1439245+052147 77  +110 53
    37605 11 022A   0433 E 20120510193602000 16 15 1450149+052031 87  +102 53
    37775 11 041A   0433 E 20120510212430000 16 15 1438413+053235 38
    37777 11 041C   0433 E 20120510204453000 16 15 1435526+055727 38
    37779 11 042A   0433 E 20120510204453000 16 15 1443132+052950 38
    37810 11 049B   0433 E 20120510211650000 16 15 1353194+052944 38
    37836 11 057A   0433 E 20120510213535000 16 15 1352586+055945 38
    37934 11 069B   0433 E 20120510211212000 16 15 1335566+060334 38
    37950 11 074A   0433 E 20120510211650000 16 15 1339374+053133 38
    37952 11 074C   0433 E 20120510204147000 16 15 1455123+040914 38
    38098 12 011A   0433 E 20120510195225000 16 15 1621186+051038 38
    38104 12 012D   0433 E 20120510195225000 16 15 1619525+032642 38  +114 01
    
    NOTES:
    ----------
    (1) Trying a new way of doing things - at the moment a painful
        process as I have not yet got APEX to work every time so most of
        the above involved manual measuring. With such a large field
        of view there are MANY geosats and other high objects in  the
        field of view - the record this time was 18 satellites - might
        even have missed one or two. This way is ideal for searching for
        new geosats/moved geosats etc but still needs some refining.
    
        Something appears to go wrong in APEX if exposure is longer than
        99 secs so suspect its a program only reading two fields for
        exposure instead of three-the program computes the length of a star
        trail in pixels and this is based on exposure so if exposure read
        incorrectly the program cannot match a star field to the image as the
        star trail length is wrong, so it looks like an error in software I
        wrote but so far the location is not obvious as I am now mentally
        exhausted! Ive probably done something stupid.
    
    (2) Looks like PAN has moved again. Not seen where it last was.
    
    (3) Vortex 6 appears to have done an orbit change.
    
    (4) When APEX works it gives RMS error in RA as 3.18 arc sec or
        0.421 pixel.
    
    (5) Thank goodness its cloudy tonight - Ive had enough of
        measuring for a while!!!
    
    Cheers
    Greg
    
    
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    This archive was generated by hypermail 2b29 : Sun May 13 2012 - 15:00:05 UTC