Updated elements

From: Ted Molczan (ssl3molcz@rogers.com)
Date: Sun Mar 15 2009 - 15:44:07 UTC

  • Next message: Derek C Breit: "New Flare Predictions for NOSS 3-2 (A) / (C)"

    The line following each element set states the duration of the underlying
    observational period, or "arc", and the WRMS (weighted average root mean square)
    residuals between the orbit and the observations; the smaller the value, the
    better. 
    
    Intelsat 3F7                                         35728 X 35836 km
    1 04376U 70032A   09072.41301237  .00000000  00000-0  00000-0 0    04
    2 04376  10.3394 321.1019 0012762 285.0078  74.7958  1.00292358    07
    Arc 2009 Feb 25.80 - Mar 13.75, WRMS residuals = 0.003 deg
    
    Vortex 6                                             31725 X 39851 km
    1 19976U 89035A   09072.41480000  .00000000  00000-0  00000-0 0    05
    2 19976   5.8185  11.9487 0963465 220.4434 132.0774  1.00270500    02
    Arc 2009 Mar 13.84
    
    USA 129                                                  284 X 942 km
    1 24680U 96072A   09073.84119567  .00005496  00000-0  77000-4 0    09
    2 24680  97.8534 128.1015 0470132  31.9386 330.9427 14.84184999    08
    Arc 2009 Mar 10.81 - 14.85, WRMS residuals = 0.028 deg
    
    IGS-O1                                                   484 X 486 km
    1 27698U 03009A   09073.86207685  .00000000  00000-0  00000-0 0    08
    2 27698  97.3969 148.6629 0002000 284.0513  76.0503 15.25960056    08
    Arc 2009 Mar 10.87 - 14.87
    
    Russell recovered 03009B / 27699 last night, but for now I have run out of time
    for analysis; will get to it later.
    
    SDS 3-4                                                591 X 39757 km
    1 28384U 04034A   09073.52256299  .00000901  00000-0  14423-1 0    03
    2 28384  63.5774   8.6217 7375211 273.0667  13.0733  2.00642097    07
    Arc 2009 Feb 20.21 - Mar 14.83, WRMS residuals = 0.006 deg
    
    USA 179 r                                              339 X 15098 km
    1 28385U 04034B   09071.71166787  .00001011  00000-0  31821-3 0    01
    2 28385  57.3949 264.9103 5234861   6.9139 358.1666  5.18694590    09
    Arc 2009 Feb 25.79 - Mar 12.80, WRMS residuals = 0.002 deg
    
    NOSS 3-3 (A)
    1 28537U 05004A   09073.02802785  .00000036  00000-0  65421-4 0    09
    2 28537  63.4344 307.9577 0004838  94.0288 266.1302 13.40537526    09
    
    I found 05004A and C considerably off-track when I observed them on Mar 14 UTC;
    the above seems realistic; if so, then 05004C should have similar eccentricity
    and argument of perigee. I may post an approximate elset for it later.
    
    USA 186                                                 259 X 1009 km
    
    1 28888U 05042A   09073.87120412  .00008475  00000-0  80392-4 0    02
    2 28888  97.8955 138.2362 0534910 109.9500 256.0176 14.77662759    01
    Arc 2009 Feb 25.88 - Mar 14.88, WRMS residuals = 0.035 deg
    
    DSP F23                                              35750 X 35785 km
    1 32287U 07054A   09071.18155070  .00000000  00000-0  00000-0 0    05
    2 32287   2.7404 265.7336 0004101 325.9356  33.4691  1.00342729    06
    Arc 2009 Jan 13.78 - Mar 12.84, WRMS residuals = 0.005 deg
    
    On the epoch date, DSP 23 passed through 29.94E, drifting east 0.248 deg/d, and
    slowly accelerating.
    
    USA 200                                               1060 X 39296 km
    1 70001U          09073.59834358  .00000000  00000-0  00000-0 0    05
    2 70001  63.8486 354.9275 7199521 269.6246  17.4135  2.00631346    05
    
    1 70002U          09073.59834358  .00000000  00000-0  00000-0 0    06
    2 70002  63.8450 354.7452 7194046 269.8507  16.7908  2.00650385    05
    
    I am bewildered by USA 200; the above are a couple of the solutions I found.
    
    USA 202 r                                            35940 X 38084 km
    1 33491U 09001B   09071.42460692  .00000000  00000-0  00000-0 0    03
    2 33491   2.9499 334.4319 0247069  13.9551 346.7162  0.96057930    02
    Arc 2009 Feb 01.17 - Mar 12.80, WRMS residuals = 0.009 deg
    
    08731A                                                2700 X 37656 km
    1 90082U 08731A   09073.78054426  .00000000  00000-0  00000-0 0    06
    2 90082  64.2390  68.3777 6581600 259.1588  25.7796  2.00601285    07
    Arc 2009 Feb 25.82 - Mar 14.84, WRMS residuals = 0.016 deg
    
    Ted Molczan
    
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