ISS Lunar Transit Tonight

From: Matson, Robert (ROBERT.D.MATSON@saic.com)
Date: Thu Apr 10 2003 - 16:21:11 EDT

  • Next message: Bjorn Gimle: "Re: ISS Lunar Transit Tonight"

    Hi Thomas and List,
    
    I sent Thomas Laskowski transit centerline predictions based on an ISS
    TLE I have from yesterday evening.  Coordinates at 5-second intervals
    around the time of closest approach to South Bend were:
    
      Date     UTC Time   Latitude   Longitude
    ---------- --------  ---------  ----------
    2003/04/11  1:30:45   42.3136    -87.1961
    2003/04/11  1:30:50   42.1138    -86.8367
    2003/04/11  1:30:55   41.9129    -86.4796
    2003/04/11  1:31:00   41.7107    -86.1248
    2003/04/11  1:31:05   41.5075    -85.7724
    2003/04/11  1:31:10   41.3031    -85.4222
    2003/04/11  1:31:15   41.0976    -85.0743
    
    These do not agree at all with Thomas Fly's predictions, so either we are
    using very different two-line elements, or there's a bug in Tom's code.
    I used the following TLE:
    
    ISS
    1 25544U 98067A   03099.77720405  .00020500  00000-0  26546-3 0  8748
    2 25544  51.6352   3.8139 0004312  42.1567  60.1039 15.58858219250337
    
    Cheers,
    Rob
    
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