The latest five elsets from OIG (sorted to time order) are : TSS 1 23805U 96012B 96079.02025515 .04199051 33236-1 59704-2 0 880 2 23805 28.4733 101.5000 0019786 87.7624 272.5276 16.08164420 3982 TSS 1 23805U 96012B 96079.20627344 .04783779 44766-1 57111-2 0 895 2 23805 28.4322 100.0230 0026924 64.0181 296.2558 16.10409589 4015 TSS 1 23805U 96012B 96079.51557779 .07009649 18658+0 71967-2 0 909 2 23805 28.4735 97.6907 0015109 102.0208 258.3082 16.15977743 4064 TSS 1 23805U 96012B 96079.57727881 .05865802 27522+0 72095-2 0 911 2 23805 28.4725 97.2081 0013649 103.1471 257.0944 16.17483952 4073 TSS 1 23805U 96012B 96079.63893078 .11809260 -74753-5 60710-2 0 920 2 23805 28.4650 96.7362 0011176 106.4936 253.7201 16.19069509 4081 With respect to the predicted SatEvo orbit evolution I posted yesterday, these yield residuals (OIG-SatEvo) increasing from -17 to -108 seconds. The corresponding SatEvo predicted decay times are Mar 20.3, 20.3, 20.2, 20.4 and 20.0 respectively, though the quoted first and second derivatives of the mean motion don't all appear too secure. The final element evolves to the following terminal orbits: TSS 1 23805U 96012B 96079.88487302 .26307805 47894+0 67687-2 0 90928 2 23805 28.4636 94.8141 0006815 109.6248 250.4486 16.27428253 4122 TSS 1 23805U 96012B 96079.94611308 .40872327 12436+1 72543-2 0 90924 2 23805 28.4630 94.3309 0005187 110.4119 249.6436 16.31395379 4138 TSS 1 23805U 96012B 96080.00714874 .99999999 10776+2 88186-2 0 90920 2 23805 28.4620 93.8456 0002722 111.2025 248.8262 16.39290333 4142 Alan -- Alan Pickup | Home lat. 55d53m48.7s N | Royal Observatory, Blackford Edinburgh | long. 3d11m51.2s W | Hill, Edinburgh EH9 3HJ Scotland | alan@wingar.demon.co.uk | A.Pickup@roe.ac.uk | +44 (0)131 477 9144 | +44 (0)131 668 8224