The Delta 2 which launched Iridiums 15,17-21 last July 9 is now within a week of re-entry; my latest analysis predicts decay for March 30.5 but the uncertainty is at least a day. Also, there is a tendency for the predicted decay time to edge later as the atmosphere settles down from its recently over-excited state. The latest elset from OIG is: Iridm 15 Delta r 5.9 2.4 0.0 5.6 d 277 x 206 km 1 24874U 97034F 98083.74215483 .01123859 -12768-5 84473-3 0 3105 2 24874 82.7012 281.1253 0053279 106.5613 254.1737 16.11942154 40251 Predictions for the next couple of days: Iridm 15 Delta r 5.9 2.4 0.0 5.6 d 274 x 205 km 1 24874U 97034F 98084.05246688 .01161331 58469-3 84191-3 0 93109 2 24874 82.7009 280.7804 0051813 105.3136 255.2596 16.12608174 40306 Iridm 15 Delta r 5.9 2.4 0.0 5.6 d 269 x 204 km 1 24874U 97034F 98084.54871600 .01256291 69671-3 85001-3 0 93109 2 24874 82.7005 280.2281 0049377 103.3156 257.2355 16.13806523 40380 Iridm 15 Delta r 5.9 2.4 0.0 5.6 d 264 x 202 km 1 24874U 97034F 98085.04458144 .01370678 84930-3 85847-3 0 93108 2 24874 82.7000 279.6753 0046818 101.3156 259.2107 16.15107290 40469 Iridm 15 Delta r 5.9 2.4 0.0 5.6 d 258 x 200 km 1 24874U 97034F 98085.54002915 .01511401 10555-2 86728-3 0 93105 2 24874 82.6995 279.1217 0044112 99.3133 261.1858 16.16532657 40541 Iridm 15 Delta r 5.9 2.4 0.0 5.6 d 252 x 198 km 1 24874U 97034F 98086.03501730 .01689165 13580-2 87647-3 0 93104 2 24874 82.6989 278.5675 0041232 97.3086 263.1601 16.18113242 40624 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 | SatEvo satellite page: http://www.wingar.demon.co.uk/satevo/