See http://www.wingar.demon.co.uk/satevo/dkwatch/ for more detailed predictions for the following... #603 = 63- 22 B = Transit 5A3 Scout X-3 r Current predictions for decay: SpaceCom: May 17 17:17 +-2d at 28.0 S, 106.3 W SatEvo : May 17 11:57 +-11h _________________________________________ #10135 = 77- 61 B = Cosmos 925 r Revised decay predictions are: SpaceCom: May 17 06:23 +-1d at 11.4 N, 66.7 E SatEvo : May 17 02:00 +-8h _________________________________________ #20338 = 89- 94 A = Molniya 3-36 After a gap of nine days, SpaceCom is predicting this decay again. Current decay predictions: SpaceCom: May 19 05:31 +-2d at 48.7 S, 7.3 W SatEvo : May 19 18:34 +-1.1d _________________________________________ #26085 = 00- 8 E = Globalstar 63 Delta 2 r Against the prediction I posted at May 14 15:15 UTC, this was running 4 sec early at the epoch of the final elset... Gbstr 63 Del r 7.0 2.0 0.0 5.5 d 15 170 x 123 km 1 26085U 00008E 00135.70079526 .35162449 12779-4 34459-3 0 2315 2 26085 49.5236 217.3666 0035452 312.8497 46.9322 16.47284308 14774 The final few elsets show little or no evidence of a fall in the drag coefficient as this fell through the expected level of the atmospheric flow transition region. My final analysis has this effect "turned off" and indicates decay while northbound over Zimbabwe at May 14 19:37 +-30m near 20.2 S, 31.4 E. SpaceCom final analysis gives an earlier decay time of May 14 19:14 +-1m near 29.8 S, 94.2 W, which is near the preceding eastwards crossing of the far S of South America. My prediction for the final orbit: Gbstr 63 Del r 7.0 2.0 0.0 5.5 d 15 155 x 119 km 1 26085U 00008E 00135.76140291 .47949029 23548+1 33131-3 0 92316 2 26085 49.5224 217.0039 0027183 313.1589 46.6141 16.50888995 14783 _________________________________________ #26114 = 00- 17 B = IMAGE Delta 2 r Updated predictions: SpaceCom: May 17 06:37 +-1d at 24.9 S, 137.9 W SatEvo : May 17 06:36 +-9h _________________________________________ Latest elsets for these objects: Transit 5A3 Scout X-3 r 244 x 229 km 1 00603U 63022B 00136.46501748 .02538538 10225-1 25307-2 0 6213 2 00603 89.8813 207.2180 0011441 252.9183 107.0823 16.13726271978875 Cosmos 925 r 3.8 2.6 0.0 5.1 v 11 200 x 184 km 1 10135U 77061B 00136.52534515 .03075331 -96431-6 68399-3 0 7562 2 10135 81.1937 221.0477 0012180 251.9748 108.0222 16.30138076259929 Molniya 3-36 8136 x 78 km 1 20338U 89094A 00136.33576609 .40816208 -59331-6 96928-3 0 8538 2 20338 63.4518 353.5824 3842542 247.1881 287.1007 8.08650739 77380 IMAGE Del r 7.0 2.0 0.0 5.5 d 7.8 304 x 154 km 1 26114U 00017B 00136.55714729 .04650823 -14128-6 71781-3 0 1341 2 26114 91.2728 194.6498 0113302 330.3733 29.1188 16.16483714 7768 There is a later elset for #20338 which has an unrealistic negative drag term and is ignored in my analysis. Alan -- Alan Pickup | COSPAR 2707: 55d53m48.7s N 3d11m51.2s W 156m asl Edinburgh | Tel: +44 (0)131 477 9144 Fax: +44 (0)870 0520750 Scotland | SatEvo page: http://www.wingar.demon.co.uk/satevo/ ----------------------------------------------------------------- Unsubscribe from SeeSat-L by sending a message with 'unsubscribe' in the SUBJECT to SeeSat-L-request@lists.satellite.eu.org http://www2.satellite.eu.org/seesat/seesatindex.html
This archive was generated by hypermail 2b29 : Mon May 15 2000 - 12:47:56 PDT