MUOS 4 is scheduled for launch from CCAFS on an Atlas V-551 on 2015 Sep 02; the launch window is from 09:59 to 10:43 UTC. Spaceflight Now will provide live coverage: http://spaceflightnow.com/2015/09/01/av-056-journal/ The following *rough* TLEs are based on launch at window-open. MECO 1 167 X 624 km 1 79601U 15245.42454861 .00000000 00000-0 00000-0 0 07 2 79601 28.0000 311.9527 0337670 130.0000 3.3000 15.58830000 09 MECO 2 193 X 34447 km 1 79602U 15245.43460767 .00000000 00000-0 00000-0 0 01 2 79602 26.0000 314.3531 7227302 179.9293 1.5500 2.38040000 05 MECO 3 3829 X 35758 km 1 79603U 15245.53674770 .00000000 00000-0 00000-0 0 04 2 79603 19.1100 323.2525 6100000 179.0000 82.1800 2.05080000 09 The MECO 3 estimate is likely the most accurate of the three, and should be reasonably close. Spacecraft separation is planned to occur at T+2:53:55. Soon afterward, the Centaur will perform a Collision and Contamination Avoidance Maneuver (CCAM), followed by a blow-down of remaining Centaur propellants. The typical Centaur end of mission occurs 4400 s after spacecraft separation. Prospective observers should use the MECO 3 TLE to evaluate visibility. Eventually, the payload will enter an approximately 5 deg inclined GEO orbit in one of the existing UFO slots. Ted Molczan _______________________________________________ Seesat-l mailing list http://mailman.satobs.org/mailman/listinfo/seesat-lReceived on Tue Sep 01 2015 - 10:25:15 UTC
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