Observations 21 July 2005: -------------------------------- 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 150mm focal length f/2.8 lens. This is a telephoto lens with variable focal length 15 to 150 mms, manufactured in France by ANGENIEUX with model type number 10x15B and at least 15 years old with a healthy growth of lens fungus. Field of view 2.4 x 1.9 degrees at 150mm and about 22 x 19 degrees at 15mm focal length. Site 0433 : Longitude 18.51294 deg East, Latitude 33.94058 deg S, Elevation 10 metres - situated in Pinelands (Cape Town), South Africa 28385 04 034B 0433 P 20050721170955600 56 15 2027250-510245 39 28385 04 034B 0433 P 20050721171100900 56 15 2038439-504553 39 28385 04 034B 0433 P 20050721171157500 56 15 2048439-502635 39 28385 04 034B 0433 P 20050721171314300 56 15 2102066-495538 39 19460 88 078A 0433 P 20050721172424400 56 15 0140465-860547 39 19460 88 078A 0433 P 20050721172509600 56 15 1553139-824402 39 19460 88 078A 0433 P 20050721172553700 56 15 1523053-681751 39 19460 88 078A 0433 P 20050721172753700 56 15 1512210-095041 39 26473 00 047A 0433 P 20050721172424400 56 15 0248560-851728 39 90016 03 766A 0433 P 20050721174051400 56 15 1510223+013012 39 90038 05 638B 0433 P 20050721174418500 56 15 1852378+024709 39 90037 05 638A 0433 P 20050721174704900 56 15 1848509-080454 39 23533 95 015A 0433 P 20050721172940300 56 15 2339144-661515 39 23533 95 015A 0433 P 20050721173111500 56 15 2127467-714613 39 23533 95 015A 0433 P 20050721173225400 56 15 1813452-664902 39 25725 99 023B 0433 P 20050721175502900 56 15 1736236+260514 39 25725 99 023B 0433 P 20050721175615800 56 15 1746525+241420 39 25725 99 023B 0433 P 20050721175724000 56 15 1756238+223307 39 23862 96 029D 0433 P 20050721175005300 56 15 1030131-104018 39 23862 96 029D 0433 P 20050721175134600 56 15 1026301-251406 39 23862 96 029D 0433 P 20050721175257100 56 15 1016205-410622 39 23908 96 029C 0433 P 20050721175005300 56 15 1029043-094646 39 23908 96 029C 0433 P 20050721175134600 56 15 1025353-240627 39 23908 96 029C 0433 P 20050721175257100 56 15 1015285-395059 39 23936 96 029E 0433 P 20050721175005300 56 15 1031027-092252 39 23936 96 029E 0433 P 20050721175134600 56 15 1027591-234151 39 23936 96 029E 0433 P 20050721175257100 56 15 1018368-392610 39 09415 76 091A 0433 P 20050721180122100 56 15 1006233-340008 39 09415 76 091A 0433 P 20050721180221600 56 15 0912008-430549 39 09415 76 091A 0433 P 20050721180251400 56 15 0844484-460326 39 07816 75 043A 0433 P 20050721180757600 56 15 1051106-093150 39 07816 75 043A 0433 P 20050721180926900 56 15 0957053-264435 39 07816 75 043A 0433 P 20050721181017800 56 15 0922445-341424 39 28096 03 054B 0433 P 20050721181230200 56 15 1036474-272431 39 28096 03 054B 0433 P 20050721181342200 56 15 1123116-175722 39 28096 03 054B 0433 P 20050721181453300 56 15 1206455-061639 39 21147 91 017A 0433 P 20050721181814900 56 15 0952333-105225 39 21147 91 017A 0433 P 20050721181843700 56 15 1008286-062328 39 21147 91 017A 0433 P 20050721181916400 56 15 1026208-005219 39 25744 99 028A 0433 P 20050721182238900 56 15 0645423-723059 39 25744 99 028A 0433 P 20050721182433100 56 15 0620022-804924 39 25744 99 028A 0433 P 20050721182931700 56 15 2007170-713617 39 25157 98 007A 0433 P 20050721182528800 56 15 1013053-420853 39 25157 98 007A 0433 P 20050721182621700 56 15 1038503-272611 39 25157 98 007A 0433 P 20050721182705800 56 15 1052037-155853 39 Notes: ------ (1) Herewith balance of observations secured 21 July 2005. (2) Many thanks to Scott Campbell and Ted Molczan for their contributions re the unknown observed (#91036). This one will probably remain unknown as the observed arc was far too short to do anything worthwhile with the positions - a situation that happens far too frequently. Unfortunately I do not have an easy solution as one needs to know instantly that the object is an unknown so that one can then follow it and get more observations. Predicting all objects beforehand is not a practical solution unless the CoSaTrak program could be re-written to show all predicted satellites in the field of view at any instant. At present this cannot be done as CoSaTrak does not have a prediction routine in it although this should not be too difficult to add - I must try and twist my colleague's (Willie Koorts) arm as he is the author of CoSaTrak. ( CoSaTrak is in Pascal and I program on the PC in BASIC.) Cheers Greg Cheers Greg ------------------------------------------------------------------------- Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive: http://www.satobs.org/seesat/seesatindex.html
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