RE: Updated NOSS 3-3 elements

From: Ted Molczan (molczan@rogers.com)
Date: Thu Feb 10 2005 - 15:45:54 EST

  • Next message: Ted Molczan: "USA 129 post-manoeuvre elements"

    Both payloads have manoeuvred to slightly lower orbits, and approximately
    matched their orbital periods. The timing and magnitude of the manoeuvres
    appears roughly the same as the first manoeuvres of the NOSS 3-2 pair. If they
    can be taken as a guide, then a manoeuvre to a mean motion near 13.406 rev/d may
    occur in the next day or two. When all manoeuvres have been completed, their
    mean motion will nearly match that of other operational NOSS, about 13.40464
    rev/d.
    
    The Centaur rocket body's altitude has been decreasing at the same time that
    rate of spin has been increasing, which suggests a more or less continuous
    escape of propellant, despite the deliberate venting shortly after payload
    separation. The NOSS 3-2 Centaur's (03054B / 28096) altitude also was observed
    to change a couple of times in the days after launch, but not as dramatically.
    
    NOSS 3-3 (A)     0.0  0.0  0.0  4.0 v
    1 28537U 05004A   05041.25490854  .00000011  00000-0  20000-4 0    02
    2 28537  63.4420 144.7667 0107863 182.7037 177.3418 13.39825552    08
    Arc 2005 Feb 09.15 - 10.27, WRMS residuals = 0.023 deg
    
    NOSS 3-3 r       0.0  0.0  0.0  4.7 v
    1 28538U 05004B   05041.24052273  .00009738  00000-0  16363-1 0    00
    2 28538  63.8363 145.3123 0124389 178.6600 181.4787 13.42687893    08
    Arc 2005 Feb 05.19 - 10.26, WRMS residuals = 0.012 deg
    
    NOSS 3-3 (C)     0.0  0.0  0.0  4.0 v
    1 28541U 05004C   05041.25519593  .00000011  00000-0  20000-4 0    09
    2 28541  63.4499 144.7760 0109265 183.3488 176.6817 13.39819295    00
    Arc 2005 Feb 10.20 - 10.27, WRMS residuals = 0.025 deg
    
    Description of 2-line elements: http://www.satobs.org/element.html
    
    Ted Molczan
    
    
    
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