Observations 09 JUNE 2010 ---------------------------- 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. Meade DSI Pro II Monochrome CCD camera without filters. using integration times of 5 sec min to 25 seconds maximum depending on brightness of sky in particular area.No image processing done, but some done automatically in the auto reduction software. Used with 80MM focal length f/2.8 Nikkon telephoto lens. Image scale is 20.393 arc sec/pixel and field of view 264 x 192 arc minutes.( 4.39 x 3.21 degrees). Shows 13th magnitude stars with about 5-7 second exposure. Maximum exposure is ~35 sec because of city lit sky, decreasing to 15 seconds at elevations of 20 degrees or less. Exposure time is recorded in the FITS header and is derived from the PC clock which is accurate to within about 1 second. Site 0433 : Longitude 18.51294 deg East, Latitude -33.94058 deg, Elevation 10 metres-situated in Pinelands (Cape Town),South Africa FOR CLASSIFIED.TLE: ====================== 25337 98 029B 0433 F 20100609190636500 16 15 1414099+012756 58 +101 02 25337 98 029B 0433 F 20100609190216500 16 15 1409563+013931 48 25337 98 029B 0433 F 20100609190347500 16 15 1411188+013420 48 25337 98 029B 0433 F 20100609190505500 16 15 1412329+013342 78 VORTEX 6 19976 89 035A 0433 F 20100609184937500 16 15 1417113+034636 48 19976 89 035A 0433 F 20100609185139500 16 15 1419397+034223 48 19976 89 035A 0433 F 20100609185615500 16 15 1425188+033257 38 19976 89 035A 0433 F 20100609185726500 16 15 1426462+033030 38 +102 01 19976 89 035A 0433 F 20100609185337500 16 15 1422053+033823 68 19976 89 035A 0433 F 20100609190050500 16 15 1430564+032336 58 19976 89 035A 0433 F 20100609202311000 16 15 1613361+005048 78 +097 04 19976 89 035A 0433 F 20100609202448500 16 15 1615398+004754 48 +099 01 19976 89 035A 0433 F 20100609202734500 16 15 1619082+004334 38 +095 01 19976 89 035A 0433 F 20100609202856500 16 15 1620510+004127 58 +104 01 19976 89 035A 0433 F 20100609202951500 16 15 1622001+004001 58 +103 01 19976 89 035A 0433 F 20100609203055500 16 15 1623209+003822 38 STRAYS SEEN: ============== ARIANE 42L R/B range 19090 kms steady 25586 98 075B 0433 F 20100609191042500 16 15 1406531+010245 58 +104 01 25586 98 075B 0433 F 20100609191146500 16 15 1408404+010530 38 +102 01 SL-6 R/B range 8230 kms 09850 77 010E 0433 F 20100609191146500 16 15 1403483+020737 19 +133 07 INTELSAT 802 24846 97 031A 0433 F 20100609185726500 16 15 1428549+052801 38 24846 97 031A 0433 F 20100609195432500 16 15 1526089+052713 68 24846 97 031A 0433 F 20100609200412500 16 15 1535499+052700 68 24846 97 031A 0433 F 20100609201420000 16 15 1545587+052651 48 +117 06 EUTELSAT W7 36101 09 065A 0433 F 20100609201420000 16 15 1559520+052036 48 +097 05 EUTELSAT W4 26369 00 028A 0433 F 20100609201420000 16 15 1600362+052205 48 +114 05 ASTRA 2C 26853 01 025A 0433 F 20100609185615500 16 15 1421267+052917 38 26853 01 025A 0433 F 20100609185726500 16 15 1422385+052911 48 +126 03 26853 01 025A 0433 F 20100609195432500 16 15 1519536+052825 68 26853 01 025A 0433 F 20100609200412500 16 15 1529342+052811 78 INMARSAT 4F2 28899 95 044A 0433 F 20100609190636500 16 15 1402219+031140 38 28899 95 044A 0433 F 20100609191042500 16 15 1406298+031035 48 +114 01 28899 95 044A 0433 F 20100609191146500 16 15 1407330+031018 28 +112 03 GALAXY 11 26038 99 071A 0433 F 20100609185615500 16 15 1427440+052800 48 26038 99 071A 0433 F 20100609185726500 16 15 1428193+052923 38 +097 01 26038 99 071A 0433 F 20100609195432500 16 15 1525349+052856 68 26038 99 071A 0433 F 20100609200412500 16 15 1535162+052851 68 26038 99 071A 0433 F 20100609201420000 16 15 1545238+052649 48 +060 00 NOTES: ======= (1) Main purpose was to find VORTEX 6 which has been lost for several weeks as a result of an orbit re-boost. Whenever the mean motion becomes greater than about 1.0031 - 1.0032 revs/day the old 1989 satellite does a burn to change the mean motion to about 1.0022 revs/day - this seems to occur roughly every 200 days. (2) Still a LOT to measure as I took over 80 images along the eastern half of the Clarke belt ( dec about +5.3 degrees for me) to an approximate declination of zero degrees. LOTS of satellites seen .. Cheers Greg _______________________________________________ Seesat-l mailing list http://mailman.satobs.org/mailman/listinfo/seesat-l
This archive was generated by hypermail 2b29 : Thu Jun 10 2010 - 14:24:34 UTC