Alberto Rango and I have made new observations. Alberto's are here: http://satobs.org/seesat/Feb-2008/0168.html I awoke to a clearing sky, but with considerable haze and thin cloud, and frequent strong wind gusts. Wind chill was about -20 C. I was not out very long, so the cold was not a problem. My 25x100 binoculars enabled me to just see the fainter of the two reference stars of my first position, which was about magnitude 8.3. In clear conditions, I can easily see to about mag 9.5. 29651 06 057A 2701 P 20080210110228330 17 25 1425518-243357 18 S 29651 06 057A 2701 F 20080210110323370 17 25 1550959-333763 37 S IOD format: http://www.satobs.org/position/IODformat.html Site 2701: 43.68764 N, 79.39243 W, 230 m Here are updated elements: USA 193 5.0 2.5 0.0 4.3 v 256 X 269 km 1 29651U 06057A 08041.43702418 .00160759 00000-0 24166-3 0 06 2 29651 58.4822 74.1062 0009451 64.5704 295.6373 16.04004208 09 Arc 2008 Feb 06.22 - 10.46, WRMS residuals = 0.013 deg Mean rate of altitude decrease over the past four days was about 890 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's estimate of the date of decay from orbit remains 2008 March 19. 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
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