Daniel Deak has made the observation that confirms his discovery of 07027B: http://satobs.org/seesat/Jul-2007/0211.html The observation arc now consists of the two points that I extracted from Babak A. Tafreshi's images of the blow-down, and Daniel's two points: 31702 07 027B 9981 G 20070615173140000 17 25 1044583+052875 58 S 31702 07 027B 9981 G 20070615173210000 17 25 1109227-012000 37 S 31702 07 027B 1747 E 20070722055905000 38 25 0013240+151101 19 +040 07 31702 07 027B 1747 F 20070724052728100 37 25 0347880+333600 38 R+065 07 The following fits with RMS residuals of 0.069 deg, with most of the residual manifested as a nearly 0.1 deg cross-track difference relative the Tafreshi points: 1 31702U 07027B 07205.21211236 -.00006518 00000-0 -16034-2 0 02 2 31702 62.2751 298.8740 0657908 219.7582 135.3443 13.68047608 01 The large magnitude of the rate of decay may be an indication of out-gassing over the 39 days since launch. The magnitude is similar to that observed during the first month in orbit of 05004B / 28538 - the Centaur of the previous NOSS launch. Assuming that the out-gassing has already ceased, then setting decay to a nominal low value, and adjusting RAAN, mean anomaly and mean motion to closely fit only Daniel's points, yields: 1 31702U 07027B 07205.21211258 .00000041 00000-0 10000-4 0 08 2 31702 62.2751 298.8744 0657908 219.7582 135.3443 13.68060327 08 Predictions over the next few days should be accurate to within a few seconds of time, and a small fraction of a degree in track. Congratulations Daniel, for spotting the object while doing something other than observing, as you related in your earlier post: http://satobs.org/seesat/Jul-2007/0201.html The mark of a true observer: always looking up! Ted Molczan ------------------------------------------------------------------------- Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive: http://www.satobs.org/seesat/seesatindex.html
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