• MPC Preparation (Info)

  • 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, the Minor Planet Orbit Supplement and the Minor Planet Electronic Circulars.

    At present MPCORB is not available via a non-ftp on this site.

    Information on the format of the elements is available via the Documentation page.

    Available Files


    This includes all minor planet orbits excluding comets.
    MPCORB.DAT is available in either uncompressed or gzip-compressed form. The compressed file is about 30% the size of the uncompressed file.


    This includes all comets and A/-objects for which the MPC has an orbit. Perturbed orbits are at the current standard epoch.


    Orbits from the latest DOU MPEC

    Elements of special classes of objects

    These are special classses of objects that are a subset of MPCORB.DAT.

    Elements of NEAs for current epochs

    Mirror Sites

    It is not possible to update the mirror sites at the present time.