NASA's MECO elset (the one with mean motion 17.57960599 rev/d) is erroneous. Here is an accurate version, derived from NASA's True of Day Rotating (TDR) [aka Earth-Fixed Greenwich (EFG)] Cartesian state vector: 1 99114U 5197.78515046 .00000000 00000-0 00000-0 0 16 2 99114 51.6437 109.9943 0133095 347.3330 70.4991 16.49319813 06 I used Ken Ernandes' VEC2TLE program. Our web site has a link to Ken's program: http://www.satobs.org/orbsoft.html#Other Use the above elset for the first pass over Europe and points east and south, minutes after orbit insertion. This orbit is correct, until the OMS-2 burn, 38 min after launch. I have added the times at which the subsequent first few elsets become effective: Jul 16 19:18:42.945 UTC (OMS-2) 1 99114U 05197.83635608 .00189937 00000-0 37621-3 0 9017 2 99114 51.6435 109.7077 0054966 341.4875 18.4317 16.30626083 24 Jul 16 23:43:19.843 UTC 1 99114U 05198.02036377 .00189937 00000-0 37621-3 0 9028 2 99114 51.6475 108.6866 0027177 331.2562 28.7128 16.23809676 56 Jul 17 10:48:21.168 UTC 1 99114U 05198.45113636 .00189937 00000-0 37621-3 0 9030 2 99114 51.6465 106.3098 0033540 337.3191 22.6514 16.22396717 129 Ted Molczan ------------------------------------------------------------------------- Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive: http://www.satobs.org/seesat/seesatindex.html
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