The MPC Orbit (MPCORB) Database
The MPC Orbit (MPCORB) database contains orbital elements of minor planets
that have been published in the
Minor Planet Circulars
Minor Planet Orbit Supplement
Minor Planet Electronic Circulars
At present MPCORB is not available via anon-ftp on this site.
Information on the format of the elements is available via the
MPCORB.DAT is available in either uncompressed or gzip-compressed form.
The compressed file is about 30% the size of the uncompressed file.
We currently do not support the generation of the CR version of this (or any
other) file. This functionality may return in the future, but for the present
you may try this
third-party gzip file
Elements of special classes of objects
Elements of NEAs for current epochs
It is not possible to update the mirror sites at the present time.