Op 3-3-2016 om 7:19 schreef Greg Roberts via Seesat-l: > If Marco is correct with his date as to when the drift had stopped- > towards end of Feb- > then the satellite is probably at 75 degrees east. I will check next time I > observe as I have > no reason to doubt Marco's deductions. > Cheers > Greg Hi Greg, others, The value of 75 E is the intended operational position for MUOS 4 listed in a document here: http://www.jhuapl.edu/techdigest/TD/td3002/Oetting.pdf The MUOS 1 to 3 operational positions in that document agree well with the observed operational positions for these satellites, so I expect 75 E to be correct too. Using the drift rate of -3.06105 deg/day deduced from two early and mid February elsets for MUOS 4 received off-line, suggests that 75 E was reached near 29.0 Feb 2016 It also suggests a start of the drift at 23.0 Jan 2016 (two days later than I initially deduced using a different (apparently too) quick assessment). Unfortunately 75 E is out of reach for both Leiden and Warrumbungle. - Marco ----- Dr Marco Langbroek - SatTrackCam Leiden, the Netherlands. e-mail: sattrackcam_at_langbroek.org Cospar 4353 (Leiden): 52.15412 N, 4.49081 E (WGS84), +0 m ASL Cospar 4355 (Cronesteyn): 52.13878 N, 4.49937 E (WGS84), -2 m ASL Station (b)log: http://sattrackcam.blogspot.com Twitter: _at_Marco_Langbroek ----- _______________________________________________ Seesat-l mailing list http://mailman.satobs.org/mailman/listinfo/seesat-lReceived on Thu Mar 03 2016 - 03:49:05 UTC
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