Thanks! I'll try it out and see what happens.

When I download http://www.projectpluto.com/guide8.zip , will this get my GUIDE 8 from CD updated to include all the changes from its release date up to today?

I guess the next question is....... when will GUIDE 9 on DVD by available that will include all these little changes since GUIDE 8's release?

Much thanks!
-Scott

-------------- Original message --------------
From: Bill J Gray <pluto@...>
Hi Scott, Alan,

Sounds as if there are two things going on here:

Scott, I had reports with the previous version that DSOs would
vanish with MPCORB turned on. I eventually tracked the problem down
and fixed it. You should be okay if you use the current version from
the Web site. (I just posted a mini-update to it that removes the
double-DSO bug mentioned by Wouter van Reeven. It also includes
the two small fixes discussed on-list: revised time zones for
Alaska, and no odd "indicators" around UCAC-2 and CMC-14 stars.)

Alan, the problem you mention (asteroids vanishing if MPCORB
isn't in use) is described at

http://www.projectpluto.com/faq_curr.htm#missing_asteroids

Essentially, the asteroids for the present era are on disk #2.
There's a reasonably straightforward way to get at that data. However,
there are also good reasons to just go ahead and use MPCORB; details
of the pros and cons of MPCORB vs. Guide's built-in elements are
given at the above URL.

-- Bill



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