Updated elements

From: Ted Molczan (ssl3molcz@rogers.com)
Date: Sat Sep 15 2012 - 17:43:47 UTC

  • Next message: Robert Holdsworth: "Re: NROL-36"

    Peter Wakelin observed USA 237 overnight. Adding his observations to his and Greg Roberts' earlier ones yields:
    
    USA 237                                              35625 X 35953 km
    1 38528U 12034A   12258.71379113  .00000000  00000-0  00000-0 0    09
    2 38528   3.4072 299.2842 0038852 311.9232  47.5375  1.00266495    01
    Arc 20120904.84-0914.89 WRMS resid 0.002 totl 0.001 xtrk
    
    The object was at 47.7 E, drifting west 0.026 deg/d. It appears to be gradually easing into its initial operational
    location.
    
    Turning to the NOSS launch, Russell Eberst observed the Centaur, as did Scott Tilley, who also observed both payloads.
    In the meantime, USSTRATCOM published its catalogue entries for most of the objects. Bob Christy has a nice listing
    (bottom of page):
    
    http://www.zarya.info/Diaries/Launches/Launches.php?year=2012
    
    As Bob points out, the Outsat payload deployer and the second NOSS have yet to be catalogued. For 3rd generation NOSS
    launches, it has been standard operating procedure to misrepresent the second NOSS as a piece of debris. Apparently this
    futile game is to continue, in which case the second NOSS will be designated P or Q. I have gone with P, for now.
    
    NOSS 3-6 (A)                                           1011 X 1202 km
    1 38758U 12048A   12259.51349376  .00000000  00000-0  00000-0 0    06
    2 38758  63.4386  37.6467 0127783 180.8342 179.2489 13.40427114    07
    Arc 20120914.4-0915.52 WRMS resid 0.013 totl 0.009 xtrk
    
    NOSS 3-6 (P)                                           1011 X 1202 km
    1 79603U 12048P   12259.51341618  .00000000  00000-0  00000-0 0    01
    2 79603  63.4386  37.6469 0127783 180.8342 179.2489 13.40427114    03
    Arc 20120915.52-0915.52 WRMS resid 0.007 totl 0.006 xtrk
    
    Initially, "A" is the trailer, but it could eventually become the leader, as I recall was the case with NOSS 3-5. If
    there is preference to assign "A" to the leader, I am supportive, but let's wait until any significant initial
    manoeuvres have been made.
    
    NOSS 3-6 r                                               473 X 760 km
    1 38770U 12048N   12259.50065756  .00061826  00000-0  51277-2 0    03
    2 38770  64.7188  35.7196 0205050 294.1350  63.8435 14.83582098    05
    Arc 20120914.16-0915.51 WRMS resid 0.024 totl 0.014 xtrk
    
    The decay term of the Centaur seems far too high; perhaps due to outgassing or observational/analytical error. The
    situation will become clear as additional observations are made.
    
    Ted Molczan
    
    
    _______________________________________________
    Seesat-l mailing list
    http://mailman.satobs.org/mailman/listinfo/seesat-l
    



    This archive was generated by hypermail 2b29 : Sat Sep 15 2012 - 17:44:31 UTC