Predicted tle difference compared to real position of Milstar 1, Apr 4 obs of it.

From: Kevin Fetter (kfetter@yahoo.com)
Date: Tue Apr 15 2008 - 02:27:24 UTC

  • Next message: Russell Eberst: "2008APR14.OBS"

    Nice to see Milstar 1 on the tv again, after a few days of cloudy sky.
    
    I comparing what the following tle's give, to where the sat really appears.
    
    From The integrated tles elements zip file, on Mike's site
    http://www.io.com/~mmccants/tles/index.html
    
    90023
    1 90023U 04776A   08105.93724389 0.00000000  00000-0  00000-0 0    00
    2 90023   5.6875 141.9104 0009315 272.2246  87.6752  1.00270000    05
    
    Closest to position of sat on tv. Very close I say. 
    
    The 96xxx integrated tles for 96xxx objects, Mike's site 
    
    Rougly 1/2 degree of more off compared to where the sat really is.
    
    96142
    1 96142U          08104.94021133 0.00000000  00000-0  00000-0 0    01
    2 96142   5.7193 141.3808 0002911 110.7851 249.2644  1.00270000    01
    
    From Scott Campbell's site
    
    http://www.coastalbend.edu/acdem/math/sats/
    
    Look for the GEO.ZIP file
    
    MILSTAR 1 (DFS-1) USA 99
    1 22988U 94009A   08090.97959539 0.00000000  00000-0  00000+0 0    06
    2 22988   5.6760 142.1835 0002542 283.5348  76.6310  1.00255300    04
    
    Rougly 1 degree off, compared to where the sat really is, weird.
    
    I last observed Milstar 1 in my scope, on Apr 4. I sent Mike some obs, but seems they got lost,
    happened before. 
    
    So I'll post them here, to be safe.
    
    90023 04 776A   1775 G 20080404014109547 15 25 1211226-025200 37 S
    90023 04 776A   1775 G 20080404014234298 15 25 1212583-024975 37 S
    90023 04 776A   1775 G 20080404015901973 15 25 1229042-022892 37 S
    90023 04 776A   1775 G 20080404021303203 15 25 1243060-021320 37 S
    
    Kevin
    
    44.6062 N
    75.6910 W
    
    
    
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