Re: TLE's from observations
Bjoern Gimle (b_gimle@algonet.se)
Wed, 4 Dec 1996 06:51:40 +0100 (MET)
>On 1 December Alphonse Pouplier wrote:
>
>>Hi all!
>
>>There are a lot of programs giving previsions and using TLEs.
>>But does a program exist which would give the TLEs using
>>observations?
>
>Since nobody has answered yet, it appears there are not many of such
>programs, perhaps none at all.
....... Conversely, it could be
>argued that using TLE's, constructed in the way outlined above, with a NORAD
>model such as SGP4 could lead to erroneous results.
>
>Comments are welcome!
I have tried a program called first, or firstfit, and used elcor (or
pelcor) to refine elements. They should be available on Neil's
ftp:// site, and Mike McCants'
Here is an (old) extract from Neil's index, with my comments :
[ http://www.algonet.se/~b_gimle/programs/ibmpc/index.htm ]
.ox.ac.uk 55156 Jun 5 19:18 <A
HREF="ftp://ftp.physics.ox.ac.uk/pub/sat/programs/ibmpc/firstelc.exe
">firstelc.exe</A> - elcor ; Paul Hirose
adjust TLE to observations?
.ox.ac.uk 46274 Jun 5 19:18 firstfit.exe
.ox.ac.uk 47496 May 28 12:50 <A
HREF="ftp://ftp.physics.ox.ac.uk/pub/sat/programs/ibmpc/firstorb.exe
">firstorb.exe</A> - appr.TLE from obs.
.ox.ac.uk 26309 Aug 8 1995 orbit23.zip
.ox.ac.uk 136192 Jan 3 1996 orbitu.zip
.ox.ac.uk 411633 Jan 3 1996 pc-orbit.exe
.ox.ac.uk 98426 Oct 3 1995 <A
HREF="ftp://ftp.physics.ox.ac.uk/pub/sat/programs/ibmpc/pelcor.zip
">pelcor.zip</A> - elcor ; Paul Hirose
adjust TLE to observations
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