Observations 30 April 2015 ------------------------------------------ Cosatrak 1 (Computerised satellite Tracking System). FLI ML8300M CCD camera with mechanical shutter + Trimble GPS Used with 55mm focal length f/1.8 lens. Field of view 18.5 x 13.9 degrees. Images processed and measured manually. Site 0433 : Longitude 18.51294 deg East, Latitude -33.94058 deg, Elevation 10 metres-situated in Pinelands (Cape Town),South Africa FOR CLASSIFIED.TLE: ---------------------------- 23533 95 015A 0433 F 20150430175943264 56 15 0316166-434218 39 23533 95 015A 0433 F 20150430180052070 56 15 0400179-310331 39 23533 95 015A 0433 F 20150430180210045 56 15 0433297-153326 39 23533 95 015A 0433 F 20150430180249068 56 15 0445163-080648 39 25746 99 028C 0433 F 20150430182426357 56 15 0947582+392656 39 25746 99 028C 0433 F 20150430182825910 56 15 1022118+270133 39 25746 99 028C 0433 F 20150430182920884 56 15 1030372+233903 39 25746 99 028C 0433 F 20150430183004899 56 15 1037279+204729 39 26906 01 040B 0433 F 20150430190833400 56 15 0515587-251540 39 26906 01 040B 0433 F 20150430190917931 56 15 0543406-200707 39 26906 01 040B 0433 F 20150430191008018 56 15 0615399-125023 39 28095 03 054A 0433 F 20150430172531824 56 15 0532349+093338 39 28095 03 054A 0433 F 20150430172605852 56 15 0550184+151830 39 28095 03 054A 0433 F 20150430172704580 56 15 0619031+243108 39 28637 05 011B 0433 F 20150430171826182 56 15 1317070-213147 39 28637 05 011B 0433 F 20150430171912927 56 15 1244084-091854 39 28637 05 011B 0433 F 20150430172044339 56 15 1153029+134022 39 28637 05 011B 0433 F 20150430172130620 56 15 1132428+230412 39 28647 05 016B 0433 F 20150430173105326 56 15 0636235+070419 39 28647 05 016B 0433 F 20150430173247915 56 15 0750411-330218 39 28647 05 016B 0433 F 20150430173506044 56 15 1452332-660612 39 29522 06 050A 0433 F 20150430181419568 56 15 0417274-453011 39 29522 06 050A 0433 F 20150430181504064 56 15 0448340-351500 39 29522 06 050A 0433 F 20150430181610921 56 15 0520237-184226 39 29522 06 050A 0433 F 20150430181649927 56 15 0533038-093137 39 35938 09 052B 0433 F 20150430184235597 56 15 1023427+375344 39 35938 09 052B 0433 F 20150430184257879 56 15 1031595+360855 39 35938 09 052B 0433 F 20150430184320145 56 15 1040323+341706 39 35938 09 052B 0433 F 20150430184347994 56 15 1051364+314402 39 39462 13 072A 0433 F 20150430174940188 56 15 1440012-465428 39 39462 13 072A 0433 F 20150430175036166 56 15 1450516-603825 39 39462 13 072A 0433 F 20150430175135447 56 15 1529392-745428 39 39630 14 015A 0433 F 20150430183449775 56 15 0429238-502722 39 39630 14 015A 0433 F 20150430183600737 56 15 0523158-333414 39 39630 14 015A 0433 F 20150430183711242 56 15 0554389-151036 39 39630 14 015A 0433 F 20150430183811669 56 15 0611248-011348 39 STRAYS SEEN: --------------------- 10856 78 044B 0433 F 20150430173105326 56 15 0636292-002133 39 15945 85 069B 0433 F 20150430175716940 56 15 0346200-424045 39 28479 04 046A 0433 F 20150430181229895 56 15 0316349-531507 39 39210 13 037C 0433 F 20150430181014712 56 15 0323196-551459 39 37828 11 054C 0433 F 20150430175716940 56 15 0353315-325806 39 NOTES: -------------- (1) Testing out a 55mm focal length f/1.8 lens from an old MINOLTA camera for use as a wide angle system for leo satellites. However full moon is not the best time to test any optical system so need a "dark of moon" session- probably will only use it when looking for misplaced brightish objects. The f/1.8 is actually too fast for my light polluted skies and I am limited to exposures of about 4 seconds max when using 2 bin on the CCD camera in bright moonlight. The field of view is 18.5 x 13.9 degrees and a 4 second exposure at 2 BIN gives a star magnitude of about magnitude 11 which translates roughly to about magnitude +7 to mag +8 for a leo satellite with camera in non-tracking mode. Hopefully with no full moon I should be able at get at least a magnitude or two fainter. Cheers Greg _______________________________________________ Seesat-l mailing list http://mailman.satobs.org/mailman/listinfo/seesat-lReceived on Fri May 01 2015 - 10:15:16 UTC
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