RE: Shuttle seen from home in Quebec !

From: Daniel Deak (dan.deak@sympatico.ca)
Date: Tue Mar 11 2008 - 07:35:32 UTC

  • Next message: Daniel Deak: "RE: Shuttle seen from home in Quebec !"

    Hi again,
    
    The TLE I used to prepare for my observation proved to be very reliable. It
    can be used by anyone for the final moments of powered flight. I just don't
    understand why NASA keeps on publishing incorrect MECO TLE every time.
    
    Here is the TLE published by NASA before launch (MM 18.151 !!!) :
    SHUTTLE
    1 00123U          08071.32561054  .00020000  00000-0  70000-3 0  9002
    2 00123  51.6370 161.2897 0408284 168.8587 192.2088 18.15107113    23
    
    And here's the one I created using state vector and VEC2TLE :
    STS-123 MECO 
    1 00123U 08009A    8071.27686343  .01000000  88387-3  95600-4 0    15
    2 00123  51.6370 161.6017 0132607 348.6512  69.1979 16.48649198    18
    
    Of course, for most of the ascent we have to use the Ted's Excel spreadsheet
    since the TLE is only good for the portion of flight just before MECO.
    
    From my place the shuttle reached a 4 degree elevation. So it can be seen
    from more deeply inland or farther north if you have an unobstructed view
    and clear weather. 
    
    
    Daniel Deak
    Webmestre, site Obsat
    Pompier, municipalite de L'Avenir, Quebec
     
    COSPAR site 1747 : 45.7275N, 72.3526W, 191 m., UTC-4:00
     
    Site en francais sur les satellites:
    French-language satellite web site : http://www.obsat.com
    
    
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