RE: ISS solar transit on 4-15-03

From: McConahy, Ralph (RMcConahy@jgld.gdscc.nasa.gov)
Date: Mon Apr 14 2003 - 18:09:49 EDT

  • Next message: Matson, Robert: "RE: ISS solar transit on 4-15-03"

    Tom Wagner [mailto:sciteach@mchsi.com] wrote:
    
    I am planning on observing a solar transit by the ISS beginning at 12:36:05
    PM Central Daylight Time (17:36:05 UTC) on April 15, 2003. The coordinates
    of the spot on the college grounds where I am going to be set up is 92d 19m
    44s W (-92.3288890 Longitude) and 42d 25m 47s N (42.4297220) Latitude.  The
    altitude is about 900 feet above sea level.
    
    I would appreciate having someone else verify my predictions using the
    latest TLEs which I would like to see listed in any response.
    
    ================
    
    Tom,
    
    Using this TLE from the NASA ISS web site:
    
    ISS
    1 25544U 98067A   03105.53106156  .00041100  00000-0  34010-3 0  9050
    2 25544  51.6352 334.9570 0006812  21.4703 338.6736 15.58205811 11238
    
    The ISS will indeed cross the Sun's disk, but about 9-seconds earlier than
    you predict (17:35:57 UT).
    
    Note that from your proposed location, the transit will not be through the
    exact middle of the sun--for that you will need to move 0.67 miles to the
    south.
    
      Ralph McConahy
      34.5489N  117.2205W  912m
    
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