Re: New Iridium orbits

Ron Lee (ronlee@pcisys.net)
Fri, 15 May 1998 06:38:16 -0600

At 11:57 AM 5/15/98 +0200, you wrote:

>IRIDIUM xx, 15 May 98, 21:28:30 UT               641 x 626
>1 98765U 980xxA   98136.07113438  .00000026  00000-0  00000+0 0    17
>2 98765  86.5808 257.4270 0011126 223.7504 136.2836 14.78706595    26
>Iridium SV1 SEP                                  644 x 639
>1 90001U 98999A   98135.93791667  .00000600 +00000-0  60000-4 0 00007
>2 90001 086.583  265.2570 0003410 119.1820 253.8990 14.76260425000001
>
>Name added for Iridflar use, heights/checksums by Orbitel.exe,
>Ron Lee's first elset included, sorted on MM.

>-- bjorn@tt-tech.se (office)  b_gimle@algonet.se (home)      --


Thanks for the new elsets folks.  I ran MY elset (#98765) last night and
compared the SECO-2 position against what mine predicted and there is a BIG
difference.  Looking at the RAANs you see an eight degree difference.
That is unacceptable and would cause a person to miss the objects.

I would assume that the elsets that Jim/Bjorn posted are the ones to use
and ONLY if you dont see them with those...fall back to mine.  If someone
can ID the problem (probably a bad RAAN in mine elset), please advise.

Ron Lee