Kevin Fetter observed an UNID on 2010 Sep 20, near 09:11 UTC, which correlates with the orbit of
XSS-11.
375 X 698 km
1 70000U 10263.37564263 .00004032 00000-0 13380-3 0 05
2 70000 98.5400 69.3906 0233500 258.9760 98.5124 15.08880000 07
The argument of perigee is somewhat uncertain, and may be 10 or more degrees low, in which case
track errors could be large, especially at high elevation. At 50 deg elevation, predictions could
easily be off by 1 or 2 degrees.
Time uncertainty is at least 5 s per day since epoch.
XSS-11's standard magnitude is 7.5 (1000 km, 90 deg phase angle).
Kevin reported two positions here:
http://satobs.org/seesat/Sep-2010/0213.html
And the video here:
http://satobs.org/seesat/Sep-2010/0292.html
I reduced two more positions:
70000 99 999A 1775 G 20100920091128125 17 25 0432828-050787 18 S
70000 99 999A 1775 G 20100920091133830 17 25 0431017-031839 78 S
Ted Molczan
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