Lacrosse 5 continues to exhibit a negative rate of decay. I have some doubt about the magnitude of the decay of the elsets below, due to their short observational arcs. Extending the arc of the epoch 06047.74369365 elset back to Jan 15 reduced the magnitude of the decay by half, but the analysis implied that observations by two skilled observers on a total of three passes during Jan 29-31, were more than 0.5 s late, which seems unlikely. It will be interesting to follow the further evolution of this orbit. Lacrosse 5 15.0 4.0 0.0 2.5 v 1 28646U 05016A 06047.74369365 -.00000108 00000-0 -25753-4 0 08 2 28646 57.0140 117.5418 0004049 10.4037 349.7060 14.53342813 07 Arc 2006 Jan 29.25 - Feb 16.80, WRMS residuals = 0.020 deg 1 28646U 05016A 06046.23041922 -.00000112 00000-0 -26821-4 0 09 2 28646 57.0140 123.2020 0004007 9.1612 350.9474 14.53343044 08 Arc 2006 Jan 29.25 - Feb 14.81, WRMS residuals = 0.015 deg Brief Introduction To TLEs And Satellite IDs: http://www.satobs.org/element.html Ted Molczan ------------------------------------------------------------------------- Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive: http://www.satobs.org/seesat/seesatindex.html
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