Upated elements of USA 161; new UNID

From: Ted Molczan (ssl3molcz@rogers.com)
Date: Mon Mar 31 2008 - 17:11:59 UTC

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Russell Eberst observed USA 161 overnight, enabling improvement of its elements:

USA 161         15.0  4.0  0.0  5.2 v
1 26934U 01044A   08090.95538332  .00001420  00000-0  30000-4 0    05
2 26934  97.9355 203.6170 0469924 348.7990  10.3035 14.75627569    01
Arc 2008 Mar 27.92 - 30.97, WRMS residuals = 0.008 deg

The longer arc confirmed my hunch that the inclination and RAAN are be a bit
greater than in my earlier solution.

Peter Wakelin observed a bright UNID last night over a short arc; here are some
possible orbits:

                                                       483 X 14206 km
1 91001U          08090.99231000  .00000000  00000-0  00000-0 0    05
2 91001  63.3267 182.8225 5000000 293.6704  22.4634  5.40000000    04

                                                       319 X 13713 km
1 91002U          08090.99224653  .00000000  00000-0  00000-0 0    02
2 91002  63.3710 182.8352 5000000 291.5382  23.4406  5.60000000    08

Ted Molczan

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