Re: NORAD model for geostationary satellites

Ron Lee (ronlee@pcisys.net)
Wed, 29 Oct 1997 06:42:18 -0700

At 07:48 AM 10/29/97 +0100, you wrote:
>...
>>somewhere else that the SDP4 algorithm had been corrected but [again] I
>>don't know where this was stated or if the updated model was described
>>anywhere).
>>
>I believe Rob Matson, after his corrections to the SDP4 in SkyMap, tested
>a geosynch elset several months old, and found excellent accuracy
(improvement)
>
>And that Ron Lee observed some high-eccentricity objects with the same
>good results. 
>
>I hope they will reply, when they are not overloaded with work, otherwise
>it should be possible to find their postings in the archives.
>

If someone can mention the age of the elset that is of interest, I can get one
of Mike McCants archived files and check a geosynch or Molniya.   Just let me
 know what you are interested in since I do use Rob's Skymap.   With the
recent
addition of relatively faint stars, it is even better for telescopic obs.

I need to look at some of these objects anyway so I will just pick a few
objects,
observe and get accurate time/position and then go back an run predictions
with
old elsets.  So unless there is another suggestion.....that is my plan.

Ron Lee