The latest elsets from OIG for these are: Telstar 5 Proton r 213 x 203 km 1 24813U 97026B 97146.42456868 .00744888 11965-4 26322-3 0 109 2 24813 51.5930 137.1128 0007996 291.6223 68.3666 16.24299832 283 Telstar 5 deb 188 x 183 km 1 24814U 97026C 97146.67016305 .06489180 12139-4 10711-2 0 177 2 24814 51.5898 135.7429 0003942 203.1720 156.9506 16.32589052 329 Thanks to Phillip Clark for the info: > Regarding the query concerning debris from the recent Proton-K launch, > object B is the third stage, mass about 4 tonnes, while I believe that > object C is a hollow cylinder, mass about 800 kg which surrounds the > Block DM class fourth stage until separation after LEO is reached. I'll stop calling object C a "platform" and instead call it "debris" on the understanding that it is as Phillip describes. The above elsets show the objects running 5.3 and 11.6 seconds late respectively against the SatEvo predictions I posted yesterday. New predictions for the rocket (decay June 1?): Telstar 5 Proton r 210 x 200 km 1 24813U 97026B 97147.03956282 .00897602 45279-3 28719-3 0 90100 2 24813 51.5927 133.7078 0007571 294.1702 65.7506 16.25385956 383 Telstar 5 Proton r 207 x 198 km 1 24813U 97026B 97147.53126883 .00970509 53930-3 28686-3 0 90105 2 24813 51.5924 130.9815 0007212 296.2103 63.7155 16.26303469 465 Telstar 5 Proton r 204 x 195 km 1 24813U 97026B 97148.02268583 .01058165 65447-3 28651-3 0 90108 2 24813 51.5921 128.2530 0006836 298.2520 61.6789 16.27299000 547 The C object may decay at about May 27.14. Predicted elsets to decay: Telstar 5 deb 184 x 179 km 1 24814U 97026C 97146.73131407 .09620416 64607-1 13616-2 0 90177 2 24814 51.5895 135.4000 0003676 203.4286 156.5551 16.34063079 337 Telstar 5 deb 181 x 176 km 1 24814U 97026C 97146.79244478 .10969457 86398-1 13596-2 0 90177 2 24814 51.5891 135.0568 0003390 203.6855 156.3008 16.35317730 348 Telstar 5 deb 177 x 172 km 1 24814U 97026C 97146.85352518 .12829231 12216+0 13570-2 0 90174 2 24814 51.5887 134.7131 0003078 203.9427 156.0429 16.36764692 355 Telstar 5 deb 172 x 168 km 1 24814U 97026C 97146.91454681 .15579294 18755+0 13537-2 0 90176 2 24814 51.5883 134.3690 0002731 204.2003 155.7869 16.38485951 361 Telstar 5 deb 166 x 163 km 1 24814U 97026C 97146.97549705 .20092580 32307+0 13471-2 0 90174 2 24814 51.5877 134.0243 0002332 204.4583 155.5306 16.40634720 375 Telstar 5 deb 158 x 155 km 1 24814U 97026C 97147.03635492 .29057681 72951+0 13156-2 0 90172 2 24814 51.5869 133.6790 0001851 204.7168 155.2743 16.43549711 386 Telstar 5 deb 144 x 143 km 1 24814U 97026C 97147.09707606 .59011383 33802+1 92863-3 0 90173 2 24814 51.5858 133.3326 0001190 204.9761 155.0181 16.48418961 395 Alan -- Alan Pickup | COSPAR site 2707: 55d53m48.7s N 3d11m51.2s W 156m asl Edinburgh | Home: alan@wingar.demon.co.uk +44 (0)131 477 9144 Scotland | Royal Observatory: A.Pickup@roe.ac.uk +44 (0)131 668 8224