Alberto Rango has reported a new observation, which I used to update the orbital elements: USA 193 5.0 2.5 0.0 4.3 v 260 X 268 km 1 29651U 06057A 08040.19031987 .00154186 00000-0 23822-3 0 09 2 29651 58.4879 79.7345 0006557 83.6022 276.5824 16.03599602 00 Arc 2008 Feb 04.28 - 09.21, WRMS residuals = 0.039 deg Mean rate of altitude decrease over the past five days was about 850 m/d (metres per day). Definition of 2-line elements format: http://spaceflight.nasa.gov/realdata/sightings/SSapplications/Post/JavaSSOP/SSOP _Help/tle_def.html Using the above elements and a 10.7 cm solar flux of 71, Satevo v0.51 estimates decay from orbit on 2008 March 19, in reasonable agreement with earlier estimates. The uncertainty is at least one week. Ted Molczan ------------------------------------------------------------------------- Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive: http://www.satobs.org/seesat/seesatindex.html
This archive was generated by hypermail 2b29 : Sat Feb 09 2008 - 15:21:47 UTC