Revised Prelaunch Iridium Elsets

Ron Lee (ronlee@pcisys.net)
Thu, 06 Nov 1997 17:39:39 -0700

Iridium, Delta, 9 Nov 97, 01:34:26 UT
1 91234U 970XXA   97313.13893519  .00000027  00000-0  00000+0 0    19
2 91234  86.4020 133.9305 0014611 253.5528 277.4218 14.80129216    03
Iridium, Delta, 9 Nov 97, 01:34:26 UT
1 91235U 970YYA   97315.69870080 -.00080964  00000-0  00000-0 0   134
2 91235  86.6961 132.7212 0011997 226.7502 133.2825 15.05257662   000

Assume 01:34:26 UT launch on 9 Nov 97.   I have provided two mean motion
elsets due to the different parking orbits I have seen.   At about 11 hours
after launch, I get a 9 minute and 12 degree (elevation) difference
between these two elsets.  One can plot both and get reasonable look angles
and times.  Hopefully by that time, elsets will be available.  Alan's
SatEvo page typically will have the most current unless you go into the
OIG site.

Due to the differences in inclination and mean motion,  a little searching
is in order.  I was able to get close on one launch but on others have been
dismally incorrect.

Ron