Elements of 05042A & B and 96072A

From: Ted Molczan (seesat@rogers.com)
Date: Fri Nov 04 2005 - 19:41:49 EST

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    Greg Roberts' latest observations have helped bring the elements of these
    objects into sharper focus.
    
    USA 129's orbit seems to have been altered to more closely match that of the
    newly launched USA 186, but the number of points remains small, so further
    tracking is required to be certain:
    
    USA 129         15.0  3.0  0.0  5.3 v                   256 X 1037 km
    1 24680U 96072A   05307.77837336  .00008438  00000-0  77001-4 0    08
    2 24680  97.8767   9.3357 0556007  67.9506 297.9786 14.73771726    02
    Arc 2005 Oct 28.86 - Nov 03.84, WRMS residuals = 0.040 deg
    
    
    USA 186's elements are based on many accurate points over a long arc, so they
    are very reliable:
    
    USA 186         15.0  3.0  0.0  5.3 v                   263 X 1044 km
    1 28888U 05042A   05307.80659240  .00012592  00000-0  13256-3 0    06
    2 28888  97.8767   9.4719 0555520 135.1636 229.5877 14.71390417    04
    Arc 2005 Oct 25.82 - Nov 03.87, WRMS residuals = 0.013 deg
    
    
    The observational arc of the rocket body is still fairly short, so I am not
    completely confident in the elements. In particular, I expected its argument of
    perigee to be closer to that of its payload, but let's see what additional
    tracking may reveal.
    
    USA 186 r        9.8  3.0  0.0  3.0 v                    150 X 868 km
    1 28889U 05042B   05307.85151874  .01086034  00000-0  35123-3 0    02
    2 28889  97.7748  10.2671 0520843 124.5215 240.6342 15.17980449    07
    Arc 2005 Oct 30.87 - Nov 03.91, WRMS residuals = 0.013 deg
    
    Ted Molczan
    
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