What standard magnitude has Lacrosse 5? -----Mensaje original----- De: Ted Molczan [mailto:molczan@rogers.com] Enviado el: martes 3 de mayo de 2005 14:42 Para: SeeSat-L@satobs.org Asunto: TJM Lacrosse 5 obs and elements, 2005 May 03 UTC The payload still has not circularised its orbit. Its apogee has just about precessed out of range of Diego Garcia, so I now doubt that the manoeuvre will occur in that area. Lacrosses 2, 3 and 4 circularized their orbits about 48 h after launch, while within range of Diego Garcia. Lacrosse 1 was deployed by a shuttle into a 450 km circular orbit; 7 days later, it manoeuvred to its final orbit. So my guess is that Lacrosse 5 will manoeuvre in the next few days. Lacrosse 5 has been exhibiting an unusually high rate of orbital decay, considering the altitude of its orbit. I produced elements for two arcs, which suggest that the rate of decay has declined somewhat over the past couple of days. Could it have made a small manoeuvre lower that looks like decay? Lacrosse 5 0.0 0.0 0.0 3.4 v 1 28646U 05016A 05123.31646144 .00006596 00000-0 49713-3 0 04 2 28646 57.0053 120.1365 0167432 20.4841 340.2799 14.91496301 00 Arc 2005 May 01.86 - 03.34, WRMS residuals = 0.030 deg 1 28646U 05016A 05123.31645974 .00011663 00000-0 87885-3 0 07 2 28646 57.0042 120.1361 0167440 20.3093 340.4493 14.91503681 04 Arc 2005 Apr 30.04 - May 03.34, WRMS residuals = 0.033 deg Lacrosse 5 r 9.8 3.0 0.0 4.8 v 1 28647U 05016B 05122.84606040 .00000997 00000-0 74925-4 0 06 2 28647 57.0009 121.9902 0162928 19.4104 341.3035 14.92109594 04 Arc 2005 Apr 30.04 - May 02.86, WRMS residuals = 0.031 deg 28646 05 016A 2701 G 20050503080920160 17 25 1808951+200385 28 S 28646 05 016A 2701 G 20050503080957520 17 25 1858426+061477 96 S 28646 05 016A 2701 G 20050503081027770 17 25 1925570-020423 37 S 28646 05 016A 2701 G 20050503081254160 17 25 2032868-221161 97 S IOD format: http://www.satobs.org/position/IODformat.html Site 2701: 43.68764 N, 79.39243 W, 230 m Ted Molczan ------------------------------------------------------------------------- Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive: http://www.satobs.org/seesat/seesatindex.html ------------------------------------------------------------------------- Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive: http://www.satobs.org/seesat/seesatindex.html
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