Updated elements

From: Ted Molczan (ssl3molcz@rogers.com)
Date: Mon May 11 2009 - 14:02:04 UTC

  • Next message: David Brierley: "DMB Obs May 11 a.m."

    Russell Eberst, Alberto Rango, Greg Roberts and Viktor Voropaev contributed
    observations used to determine one or more of the following element sets.
    
    USA 202                                              35735 X 35839 km
    1 33490U 09001A   09130.18270924  .00000000  00000-0  00000-0 0    08
    2 33490   2.8718 340.0723 0012429 173.5116 186.1184  1.00273800    08
    Arc 20090510.7-0510.88 WRMS resid 0.002 totl 0.001 xtrk
    
    Greg and Viktor reported USA 202 nearly 1.4 deg east of its location 8 days ago.
    Yesterday, it was near 45.8 E; the above elements are based on the assumption
    that it has stopped its eastward drift; additional observations will settle the
    question.
    
    STSS-ATRR r                                              163 X 862 km
    1 34904U 09023B   09131.17586299  .00417504  00000-0  27934-3 0    07
    2 34904 112.5366 231.1354 0506842 302.8239  52.5069 15.17129846    08
    Arc 20090509.93-0511.19 WRMS resid 0.019 totl 0.011 xtrk
    
    The above elements replace the set I posted earlier, benefiting from
    observations subsequently reported by Alberto and Russell.
    
    Prediction time uncertainty tonight should be well within 10 s.
    
    Using Satevo 0.51, I estimate the object will decay within about 10 days of 2009
    July 22.
    
    Ted Molczan
    
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