David Brierley has reported new observations: http://satobs.org/seesat/Feb-2008/0006.html The data format of David's report is defined here: http://www.satobs.org/position/UKformat.html The object was about 0.3 s late relative the elements I posted yesterday. Here are updated elements: USA 193 5.0 2.5 0.0 4.3 v 267 X 275 km 1 29651U 06057A 08032.26673860 .00108121 00000-0 19426-3 0 03 2 29651 58.4892 115.4602 0006491 79.8395 280.3436 16.01043930 04 Arc 2008 Jan 30.29 - Feb 01.29, WRMS residuals = 0.029 deg Definition of 2-line elements format: http://spaceflight.nasa.gov/realdata/sightings/SSapplications/Post/JavaSSOP/SSOP_Help/tle_def.html Using Satevo v0.51 with a 10.7 cm solar flux of 71, results in a decay prediction for 2008 March 29, in line with earlier estimates. The uncertainty is at least one week. I have updated the standard visual magnitude calculation: http://satobs.org/seesat_ref/06057A/06057A_stdmag_6.jpg Results are unchanged: mag 4.3 +/- 2, at range 1000 km, phase angle 90 deg. Co-efficient of phase = 1.26 mag/rad (0.0220 mag/deg). Ted Molczan ------------------------------------------------------------------------- Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive: http://www.satobs.org/seesat/seesatindex.html
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