Andrea Pelloni Aug 25, 2000
----- Original Message -----
From: Bill J. Gray <pluto@...>
To: <guide-user@...>
Sent: Friday, August 25, 2000 5:10 PM
Subject: [guide-user] NEOCP, occultations, Almagest, etc.
> Hi Matt,
>
> "...By definition the NEOCP only has objects for which no elements
> are available." This is "sort of" true. They are objects with large
> uncertainties, yes. I believe what the MPC does is to fit
guesstimate
> orbits to them; these are then used to generate the ephemerides
> available on the NEOCP. I'm fairly certain they aren't magically
> generating ephemerides without first finding orbital elements.
>
> However... since you're willing to settle for even hour
intervals...
> that's _much_ easier to do, as a user-added dataset:
>
> http://www.projectpluto.com/extras.htm#neocp
>
> As you suggest, this "workaround" should work just fine. I rather
> prefer it myself; either the interpolation scheme or the idea of
> recovering the elements using Gauss' method would have taken time and
> have been more error-prone!
> -- Bill
Dear Bill, I have done what you say in order to show the NEOCP ephemeris
positions in the GUIDE chart, but when I open the "Extras" "Toggle user
datasets", there is neither "NEOCP Objects" nor any other dataset that
could be the right one.
I have tried even the "GO TO .TDF Object", with same results. Any other
friend has the same problem?
I have GUIDE on the Hard Disk, but I think this is not the cause of my
problem.
Thanks
Andrea