USA 186 post-manoeuvre observation and elements

From: Ted Molczan (ssl3molcz@rogers.com)
Date: Sat May 21 2011 - 03:54:10 UTC

  • Next message: Ted Molczan: "TJM obs of 2011 May 21 UTC; NOSS 3-5 elements"

    I received a heads-up from Pierre Neirinck, of a manoeuvre by 05042A / 28888. I was fortunate to pick it up low in the
    north, and obtained a couple of mediocre points:
    
    28888 05 042A   2701 G 20110521015906520 17 25 2139699+513032 28 S
    28888 05 042A   2701 G 20110521015928140 17 25 2223530+521970 38 S
    
    Combined with Mike Waterman's point of May 19 near 20:49 UTC, and a synthetic one at the apparent perigee of the
    manoeuvre - 14:17:26 UTC on the same day, I obtain the following approximate elements:
    
    USA 186                                                  254 X 988 km
    1 28888U 05042A   11141.07401788  .00023466  00000-0  19914-3 0    09
    2 28888  97.8490 204.1470 0524493  34.6755 328.7501 14.81829277    03
    Arc 20110519.6-0521.08 WRMS resid 0.064 totl 0.055 xtrk
    
    Ted Molczan
    
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