R: MUOS 1: pre-launch estimated orbital elements

From: satrack@libero.it
Date: Fri Feb 24 2012 - 20:56:39 UTC

  • Next message: Patrick Schmeer: "MUOS-1 launched"

    I've loaded these TLEs into the online tracking program at the following links:
    
    three objects, one for each TLE:
    
    http://www.satflare.com/track.php?q=TempMUOS
    
    One object. Program switches over the 3 TLE:
    
    http://www.satflare.com/track.php?q=TempMUOSauto
    
    
    Regards,
    Simone
    
    
    >----Messaggio originale----
    >Da: ssl3molcz@rogers.com
    >Data: 24-feb-2012 15.35
    >A: <seesat-l@satobs.org>
    >Ogg: MUOS 1: pre-launch estimated orbital elements
    >
    >MUOS 1 is scheduled for launch from CCAFS on an Atlas V-551, today, 2012 Feb 
    24; the launch window is from 22:15 to
    >22:59 UTC. Launch coverage is available at Spaceflight Now:
    >
    >http://www.spaceflightnow.com/atlas/av030/status.html
    >
    >The following *rough* TLEs are based on launch at window-open.
    >
    >MECO 1                                                   167 X 624 km
    >1 79601U          12055.93565972  .00000000  00000-0  00000-0 0    05
    >2 79601  28.0000 308.9140 0337670 130.0000   3.3000 15.58830000    06
    >
    >MECO 2                                                 193 X 34447 km
    >1 79602U          12055.94571759  .00000000  00000-0  00000-0 0    07
    >2 79602  26.0000 311.3140 7227302 179.9293   1.5500  2.38040000    08
    >
    >MECO 3                                                3463 X 35786 km
    >1 79603U          12056.05051156  .00000000  00000-0  00000-0 0    05
    >2 79603  19.0000 326.8140 6215271 179.0000  74.6500  2.07084000    05
    >
    >Spacecraft separation is planned to occur at T+3:01:23. Soon afterward, the 
    Centaur will conduct 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.
    >
    >I have not evaluated visibility windows, but based on a quick look, it 
    appears that the CCAM and blow-down will occur
    >within range of Western Australia, but well after sunrise. 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. Space.com
    >recently reported that it will be located over the Pacific Ocean. The slot in 
    that region is at 177 W. The article also
    >stated that there will be a 6 month check-out period; it is unclear whether 
    check-out will occur at the initial
    >operating location or elsewhere over the Pacific.
    >
    >http://www.space.com/14587-navy-military-satellite-muos-launch-thursday.html
    >
    >Ted Molczan
    >
    >
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