USA 144 and DMSP F16 elements

From: Ted Molczan (molczan@rogers.com)
Date: Tue Oct 21 2003 - 11:42:56 EDT

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Elements derived from observation arc 2003 Sep 30 - Oct 20 UTC:

USA 144          0.0  0.0  0.0  3.6 v
1 25744U 99028A   03294.17644420  .00000084  00000-0  12998-1 0    01
2 25744  63.4518 327.3339 0240889 292.4585  65.0895  9.69803482    09

WRMS residuals = 0.011 deg

Elements derived from observation arc 2003 Oct 18 - 20 UTC:

DMSP F16         0.0  0.0  0.0  6.2 v
1 28054U 03048A   03293.84783510  .00000188  00000-0  10000-3 0    01
2 28054  98.9267 327.4610 0005529 257.1208 102.9347 14.13369970    00

Decay term is a fixed estimate; all other elements were allowed to vary.

WRMS residuals = 0.010 deg

Similar result to USSTRATCOM's elset nearest in epoch:

1 28054U 03048A   03293.70620269 -.00003633  00000-0 -19124-2 0   114
2 28054  98.9252 327.3192 0006136 270.3918  89.4056 14.13362106   288

Orbital periods agree to within 0.034 s; inclinations agree to within 0.0015
deg; RAANs agree to within 0.0005 deg (allowing for precession between the
differing epoch); perigees agree to within 0.68 km.

Ted Molczan


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