Re: Globalstar elsets 0300 04/25 UT

Craig Cholar (3432P@VM1.CC.NPS.NAVY.MIL)
Fri, 24 Apr 98 21:57:26 PDT

I just saw four more Globalstar objects, in addition to the 'E' object
I reported previously.  According to the OIG elsets I had, I was only
supposed to see three, and those three should have passed by the
star I had selected at these times (UT 04/25):

04:15:45  25309  ('D')
04:16:20  25307  ('B')
04:17:06  25308  ('C')

I picked up the first object within 2 seconds of the expected time, but
instead of seeing three objects separated by over a minute, I saw four,
about 1.5 degrees apart from each other.  I could just barely fit three
of the objects in my field of view at 40x.  The time separations
(approximately, counting in my head) were:

* ---- 2 sec ---- O ----- 3 sec ----- O ----- 3 sec ----- O

The varied in brightness somewhere between mag 9 and mag 7 (poor phase
angles), but the second object exhibited a mini-flare to mag 5 for about
10 seconds.   At one point in the pass, a rogue satellite caught
up with the four and overtook them.  It wasn't on the same course, but
close enough that I could track it with the other four for about 7
seconds before the separation became too great.  I tracked the four
for a little over nine minutes, total.

I'll leave the apparent elset confusion that's going on for our very
capable in-house experts to ponder.  I'll admit I'm more into this
hobby for the pure visual enjoyment, and this was certainly one of
those memorable passes that keeps me hooked.  Great fun!

Just as I was about to post this, I picked up this more recent
elset for the 'B' object.  The others haven't changed as I write this
at 0500 UT.

Globalstar 98023B
1 25307U 98023B   98115.08718806  .00000000  00000-0  10000-3 0    20
2 25307  52.0034  88.9069 0007393 252.6245 107.4299 13.02548438    12

 Craig Cholar    3432P@VM1.CC.NPS.NAVY.MIL
 Marina, California
 36 41 10.3N,  121 48 17.9W    (36.6862, -121.8050)      UTC -7