Ahhh Man! Ever since that jerk hacked the MPC they've been struggling to set up a clean hack-proof mirror site. Some things are back up and running at
http://www.minorplanetcenter.org/iau/MPCORB.html
but options are limited.

To refresh/update the main MPCORB.DAT file, there's no longer the option to save vs open. It just opens. And it's impossibly large.

There is a compressed version that downloads, but it's in a linux friendly GZIP format. Has anyone running Win XP figured out how to deal with a .GZ format?

I've spent hours on GnuWin32, but in the end that turns out to be just a compression program, and doesn't seem to open anything.

Pretty much out of business for astrometric work right now.

Pete Peterson