I have produced yet another updated elset, this time trying for the best possible accuracy by using the best data: USA 129 15.0 3.0 0.0 5.1 v 1 24680U 96072 A 97 13.49044444 .00010862 00000-0 10596-3 0 01 2 24680 97.8682 79.0080 0557462 87.1210 244.5852 14.72308451 09 Obs 14 1997 jan 09 1130:57.00 -38.374400 144.8136 5 08.750000 -14.150000 1 Obs 19 1997 jan 11 1225:13.02 -31.125556 149.11444 390 21.566667 -82.683333 1 Obs 20 1997 jan 11 1226:58.07 -31.125556 149.11444 390 02.483333 -65.633333 1 Obs 21 1997 jan 11 2036:18.10 -33.942400 18.51320 10 08.155000 -52.566667 1 Obs 26 1997 jan 13 1143:26.58 -31.125556 149.11444 390 12.200000 -64.516667 1 Obs 27 1997 jan 13 1144:50.50 -31.125556 149.11444 390 10.270000 -59.883333 1 Obs 28 1997 jan 13 1320:41.30 -31.125556 149.11444 390 23.443333 -52.716667 1 Obs 29 1997 jan 13 1323:36.48 -31.125556 149.11444 390 01.150000 -25.900000 1 Residuals in radians Obs 14 0.0002 Obs 19 0.0001 Obs 20 0.0002 Obs 21 0.0003 Obs 26 0.0003 Obs 27 0.0003 Obs 28 0.0001 Obs 29 0.0003 old RMS 0.0001 radians new RMS 0.0001 radians BSTAR [1.0596e-004]: inclination [97.8682]: R.A. Asc. Node [79.0080]: eccentricity [0.0557462]: arg of perigee [87.1210]: quasi mean anomaly [331.7062]: mean motion [14.72308451]: mean anomaly 244.5852 Clear Skies! Ted