Jonathan McDowell wrote: > I obtained the following > Chandra orbit data from the Chandra control room folks - I > hope someone > can generate TLEs from these. > > Post IUS orbit (where we are now) > > Epoch 99204 13:48:51 > Alt 330.23 x 72030.56 x 28.4528 > SMA 42558.527 > Ecc 0.842373 > Inc 28.4528 > RAAN 196.2671 > AOP 270.0155 > True Anom 119.3190 > Mean Anom 14.5069 > Period 24.2710 hr Here is the Post IUS orbit: Chandra 15.0 4.0 0.0 4.2 d 1 25867U 99040 B 99204.57559028 .00000000 00000-0 00000-0 0 08 2 25867 28.4528 196.2671 8423730 270.0155 14.5069 0.98883441 08 > Planned post IPS 1 orbit (after 9.11pm EDT this evening) > > Alt 1200 x 72023 x 28.44 > > SMA 42990.1355 > ecc 0.823711 > Inc 28.4448 > RAAN 196.0098 > AOP 270.3411 > Mean Anom 180.5498 (no epoch given!) > Period 24.6412 hr > > Burn times currently planned: > > IPS-1 206/01:11:27 for 5min 00 sec The following elset is for the Post IPS burn. I set the epoch to immediately after the IPS 1 burn, i.e. day 206, 01:16:27 UTC, but that may not be correct. Chandra 15.0 4.0 0.0 4.2 d 1 25867U 99040 B 99206.05309028 .00000000 00000-0 00000-0 0 06 2 25867 28.4448 196.0098 8237110 270.3411 180.5498 0.97397854 00 Ted Molczan