This is a mirror site of Minor Planet Center Orbit Database (MPCORB), maintained by Lulin Sky Survey. It uses MPCORB-file Achiever (MOfA) to get the most recent MPCORB files. MOfA will run automatically each day, at 08:30 UT, and check if the MPCORB file had been updated. MOfA is developed by Quanzhi Ye, and the datasets are interchanged by the MPCORB mirror site of Czech Astronomical Society.
This http-access directory contains the latest version of MPCORB in a variety
of formats.
MPCORB.DAT
Uncompressed version (LF terminated)
MPCORB.ZIP
Compressed version (LF terminated)
MPCORBcr.DAT Uncompressed version
(CR-LF terminated)
MPCORBcr.ZIP Compressed
version (CR-LF terminated)
The MPCORBcr files are intended primarily for users of PCs.
These files are rebuilt each night, generally between 07:00 and 08:00 UT, except
during the short period each month when the next batch of Minor Planet Circulars
are being prepared.
Other files contain subsets of the above main file:
NEA.DAT
NEAs (LF terminated)
NEAcr.DAT
NEAs (CR-LF terminated)
PHA.DAT
PHAs (LF terminated)
PHAcr.DAT
PHAs (CR-LF terminated)
Unusuals.DAT
Unusual objects (LF terminated)
UnusualsCR.DAT
Unusual objects (CR-LF terminated)
DistantObjects.DAT Distant
objects (LF terminated)
DistantObjectsCR.DAT Distant objects (CR-LF terminated)
DAILY.DAT
Contains the orbits newly added to MPCORB.DAT (LF terminated)
DAILYcr.DAT
Contains the orbits newly added to MPCORB.DAT (CR-LF terminated)
Previous versions of DAILY.DAT and DAILYcr.DAT are stored in
DAILY-xx.DAT and DAILYcr-xx.DAT, where xx is "01" for the previous
version, "02" for the version before that, etc.
The directory also contains the elements for the (potentially)
observable comets.
COMET.DAT
Uncompressed version (LF terminated)
COMETcr.DAT Uncompressed
version (CR-LF terminated)
Since the COMET*.DAT files are so small, there is no compressed version.
Also included are elements of NEAs for non-standard epochs:
NEAtod.DAT
Elements for 0h UT today (LF terminated)
NEAtodCR.DAT Elements for 0h UT today
(CR-LF terminated)
NEAtom.DAT
Elements for 0h UT tomorrow (LF terminated)
NEAtomCR.DAT Elements for 0h UT tomorrow
(CR-LF termninated)
NEA+XX.DAT Elements for
0h UT today + XX (LF terminated)
NEA+XXCR.DAT Elements for 0h UT today + XX (CR-LF
terminated)
NEA-XX.DAT Elements
for 0h UT today - XX (LF terminated)
NEA-XXCR.DAT Elements for 0h UT today - XX (CR-LD
terminated)
The format of the files is described at:
http://cfa-www.harvard.edu/iau/info/OrbFormat.html
(c) Copyright 2006-2007 Lulin Sky Survey