Re: [find_orb] new Orbit Simulator View in Find Orbit

Bill Gray Feb 22, 2018

Hi Adam,

I've fallen behind in updating the Windows version of Find_Orb.
I just pushed an update onto my site for the 64-bit software. If
you go to the usual place, i.e.,

https://www.projectpluto.com/find_orb.htm

and click on "Downloads", then "Click here to download the
64-bit Windows version", you'll get the current software.

I have not, at least yet, updated the 32-bit Windows version.
I don't think anyone is using that anymore.

This update causes pseudo-MPECs to have a link to Tony Dunn's
Orbit Simulator. A tip of the hat is due to Tony here; he's done
some good work to get this to run with essentially any object.
1I/`Oumuamua and some artsats got us both thinking that an essentially
"general" solution would be a really good thing.

There are several (mostly minor) improvements in this version :

-- I've had occasional inquiries about the information on
pseudo-MPECs, mostly of a fairly basic nature from people who
don't deal with astrometry or orbits on a frequent basis. Each
pseudo-MPEC now has a link to an "overview", with further links
for most sections of the pseudo-MPEC.

-- The MOIDs between the orbit and that of various planets could
be slightly off in some low-eccentricity cases.

-- Display of alt/az data in ephemerides was sometimes mangled.
(Actually, quite frequently mangled.)

-- If all the positions are within a couple of arcsecs of each
other, you get a "this object may be a star" warning message.

-- The 'simplex' and 'superplex' methods are more likely to
converge now (I read an interesting paper on tweaking certain
parameters, gave it a try, and it helps with both speed and
accuracy).

-- As usual, lots of new MPC codes. (Plus a few new "rovers",
unofficial MPC codes, added to rovers.txt.)

-- Bill

On 2018-02-22 04:42, limax7@... [find_orb] wrote:
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> Hi,
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> how to add new Orbit Simulator View in Find Orbit ?
>
> When I generate Pseudo MPEC then I don't have this new Orbit view.
>
> Adam
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>