I put the listed position and TLE into my program and came up with the following tracks for a Venus crossing. Draw lines on a map to see if the numbers match. According to the results, ISS passed a few arc minutes from Venus at the position given. This would match your description of the event. BTY, I set the results to miles versus kilometers as you are in the US. Denis. Venus Transit Produced: August 22, 2004 6:38:14 PM Location: (HOME) Lat: 42.6144 Lon: -92.3863 Start: (UTC)20/08/2004 22:33:55 Stop: (UTC)27/08/2004 22:33:55 Min Sat El: 5 Times: UTC ---------------------------------------------------------------------- Satellite: ISS TLE CelesT TLE Date:2004-08-21 12:36:17Z TLE Age: -0.58 days Apoge: 226.0 mi. Perige: 219.5 mi. Date Lat Lon Path Dist Az Rng Alt Slt 22/08 09:49:19 42.4797 -92.6511 0.03 16.38 243.0 536.6 21.3 True 22/08 09:49:20 42.5252 -92.5578 0.03 10.68 242.5 535.2 21.3 True 22/08 09:49:21 42.5707 -92.4646 0.03 5.00 240.8 533.8 21.3 True 22/08 09:49:22 42.6160 -92.3713 0.03 0.77 83.9 532.5 21.3 True 22/08 09:49:23 42.6612 -92.2781 0.03 6.38 66.6 531.2 21.3 True 22/08 09:49:24 42.7064 -92.1850 0.03 12.04 65.4 529.8 21.3 True 22/08 09:49:25 42.7514 -92.0919 0.03 17.70 65.0 528.5 21.4 True End of track ---------------------------------------------------------------------- Satellite: ISS TLE H-A TLE Date:2004-08-21 21:46:35Z TLE Age: -0.97 days Apoge: 226.1 mi. Perige: 219.4 mi. Date Lat Lon Path Dist Az Rng Alt Slt 22/08 09:49:18 42.4606 -92.6852 0.03 18.56 242.8 536.9 21.3 True 22/08 09:49:19 42.5062 -92.5919 0.03 12.86 242.2 535.6 21.3 True 22/08 09:49:20 42.5517 -92.4987 0.03 7.17 240.8 534.2 21.3 True 22/08 09:49:21 42.5971 -92.4054 0.03 1.54 227.9 532.9 21.3 True 22/08 09:49:22 42.6424 -92.3122 0.03 4.23 69.3 531.5 21.3 True 22/08 09:49:23 42.6875 -92.2191 0.03 9.89 66.4 530.2 21.3 True 22/08 09:49:24 42.7326 -92.1259 0.03 15.55 65.6 528.9 21.4 True End of track Tom Wagner wrote: > > My GPSr read position was 42 degrees 36.864 minutes (42.6144 d) by 92 d > 23.179 m (-92.3863 d). The altitude was 926 feet according to topozone.com. > See > http://www.topozone.com/map.asp?lat=42.6144&lon=-92.3863&datum=nad83&u=5). I > used http://www.cosports.com/tools/gps_coords.htm to convert the coordinate > units back and forth. > > If anybody needs clarification about any of the numbers Ive included or > inadvertently left out, feel free to ask. > > Clear skies! [Mine was this morning.] > > Tom Iowa USA > + + + > > ------------------------------------------------------------------------- > Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive: > http://www.satobs.org/seesat/seesatindex.html > > ------------------------------------------------------------------------- Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive: http://www.satobs.org/seesat/seesatindex.html
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