Updated elements

From: Ted Molczan (ssl3molcz@rogers.com)
Date: Sun Apr 19 2009 - 16:11:51 UTC

  • Next message: FONTAINE Marcel: "Satellites (?) to identify"

    Derek Breit, David Brierley, Scott Campbell, Russell Eberst, Kevin Fetter, Peter
    Gertson, Bruce MacDonald, Pierre Neirinck, Alberto Rango, Greg Roberts, Peter
    Wakelin, Mike Waterman, Brad Young, and I, contributed observations used to
    determine one or more of the following element sets.
    
    Peter Wakelin observed USA 202 (09001A / 33490) on Apr 18/19 UTC, running about
    60 s late relative the epoch 09105 elements.
    
    If it had already manoeuvred as of the previous observations, on Apr 15 UTC,
    then the following elements apply:
    
    1 70001U          09108.23755306  .00000000  00000-0  00000-0 0    00
    2 70001   2.8886 339.2506 0018843  94.6308 265.2748  1.00191386    07
    
    The following apply for manoeuvres subsequent to Apr 15, assuming they occurred
    near perigee:
    
    Manoeuvre Apr 16 11:47:30 UTC
    1 70002U          09108.23758203  .00000000  00000-0  00000-0 0    00
    2 70002   2.8883 339.2970 0018220  98.2436 261.6533  1.00177227    01
    
    Manoeuvre Apr 17 11:44:40 UTC
    1 70003U          09108.23740629  .00000000  00000-0  00000-0 0    04
    2 70003   2.8886 339.2968 0017212  98.7175 261.1677  1.00158167    03
    
    Manoeuvre Apr 18 11:41:40 UTC
    1 70004U          09108.23653195  .00000000  00000-0  00000-0 0    06
    2 70004   2.8901 339.2955 0012232 101.9777 257.8495  1.00063803    02
    
    I note that the object's previous drift rates were near 0.25, 0.5, and 1.0
    deg/d, and that 70004 drifts west ~0.75 deg/d, which might fit a pattern, in
    terms of rounding to the nearest quarter degree. This can only be confirmed
    through subsequent observations.
    
    USA 89 r                                                338 X 6730 km
    1 22519U 92086C   09108.87174308  .00001505  00000-0  18908-3 0    03
    2 22519  56.9072 109.3325 3224448   8.0333 356.1385  8.79680749    06
    Arc 20090412.97-0418.88 WRMS resid 0.02 deg
    
    USA 129                                                  292 X 940 km
    1 24680U 96072A   09109.09722627  .00003619  00000-0  57315-4 0    05
    2 24680  97.8405 162.8676 0462574 276.0795  78.7914 14.83286757    02
    Arc 20090418.09-0419.11 WRMS resid 0.02 deg
    
    USA 186                                                 258 X 1012 km
    1 28888U 05042A   09108.87791264  .00008708  00000-0  81619-4 0    02
    2 28888  97.8900 172.7030 0537632 356.1352   3.5780 14.77283455    09
    Arc 20090411.85-0418.89 WRMS resid 0.043 deg
    
    06667A                                                 247 X 28915 km
    1 90061U 06667A   09108.90909242  .00006591  00000-0  11758-2 0    02
    2 90061  27.4016 119.2918 6839035 288.5341  12.3283  2.86196229    08
    Arc 20090401.79-0418.98 WRMS resid 0.01 deg
    
    96632A                                               30485 X 35669 km
    1 96132U 96632A   09108.48480284  .00000000  00000-0  00000-0 0    06
    2 96132   9.4189  28.6994 0657040 259.2485  93.2768  1.10781014    07
    Arc 20090103.89-0419.03 WRMS resid 0.006 deg
    
    Ted Molczan
    
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    This archive was generated by hypermail 2b29 : Sun Apr 19 2009 - 16:12:38 UTC