Re: Orion 3 / Delta 3 elset

Ron Lee (ronlee@pcisys.net)
Wed, 05 May 1999 08:26:14 -0600

The official elset below:

ORION 3                                          1379 x 162 km
1 25727U 99024A   99125.44133944  .01633590 -38064-5  12225-2 0    39
2 25727  29.5324  48.2489 0850917 163.5568 199.4188 14.36332326    68

as compared to my prelaunch elset below:

Orion, Delta 3 01:00 UT, 5 May 99
1 99999U 99 0XX A 99125.09599537  .00000500  00000-0  00000-0 0    15
2 99999  27.5000  60.7749 6609930 174.2120  11.3680  3.22200000    13

indicates a serious failure of the second stage burn that should have
resulted in an apogee of at least 13000 miles.  We may not find out what
really happened but I wonder if the orientation was wrong.  The increased
inclination is the first reason for that.  The changed RAAN may just be
an error in my prelaunch elset. Those here with better contacts might
weigh in with more info as it becomes available.

Ron Lee