Further to Ted Molczan USA 186 search TLE,
here are elements of my observations made on 20th July in ROME (site 4542)
and on 21st July in BARI
(site 4641):
28888 05 042A 4542 F 20120720195243480 17 24 2343750+460813 38
28888 05 042A 4641 F 20120721201801600 17 24 1005480+641187 38
4542 41.9683N 012.4545E 80 mt.
4641 41°.1067N 016.9008E 35 mt.
> Oggetto: Updated elements; USA 186 search TLE
> 1. USA 186 re-boosted
> Alberto Rango's observations of 2012 Jul 19 UTC revealed USA 186 running
late and considerably off-> > track - indicative of
> a re-boost coordinated with that of USA 224.
> This was its last observed pre-manoeuvre orbit:
251 X 1006 km
> 1 28888U 05042A 12198.82821034 .00029922 00000-0 24691-3 0 06
> 2 28888 97.8982 260.7918 0538552 95.7725 270.5119 14.79258237 08
> I was unable to identify a manoeuvre perigee that accounted for both the
time and track of Alberto's > observation. It
> appears that the manoeuvre may have been a perigee-raising, at the apogee
passage of 2012 Jul 19 at > 17:13:47 UTC. If so,
> then it should be in approximately the following orbit, which closely fits
Alberto's observations:
261 X 1006 km
> 1 70000U 12201.87211139 .00024871 00000-0 24691-3 0 05
> 2 70000 97.8982 263.8130 0531088 85.8560 280.3142 14.77688529 09
> Allow at least one minute prediction time uncertainty, for every 15 revs
after epoch.
> Ted Molczan
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