Re: An ISS encounter with Venus and Saturn

From: Denis (denis.boucher@telus.net)
Date: Sun Aug 22 2004 - 20:59:06 EDT

  • Next message: Thomas Fly: "Re: An ISS encounter with Venus and Saturn"

    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
    > +   +   +
    > 
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