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IAU Minor Planet Center

MPC Operations Status

Processing (Info)
ECS: Accessible

Observer Services (NEOs)

Observer Services

Orbital Elements

Astrometric Observations

Publications

Documentation

Lists and Plots

General Information

General

Links

MPC Index

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Amor Minor Planets
- Listing (in Order of Designation)
- Listing (in Order of Perihelion Distance)
- Orbit Diagrams
- The NEO Page
Apollo Minor Planets
- Listing (in Order of Designation)
- Listing (in Order of Perihelion Distance)
- Orbit Diagrams
- The NEO Page
Asteroids (see Minor Planets)
Astrometric Observations
- How to Report Astrometric Observations
- Guide to Minor Body Astrometry
- Observation Submission Format
  - Observatory Codes
Astronomical Glossary
Aten Minor Planets
- Listing (in Order of Designation)
- Listing (in Order of Perihelion Distance)
- Orbit Diagrams
- The NEO Page
Catalogues
- Catalogue of Cometary Orbits
- ICQ Comet Handbook
Centaur Objects
- Listing
- Plot of Outer Solar System
Comets
- Observable Comets
- Correspondence of Old- and New-Style Designations
- Dates of Last Observation Of Currently-Observable Comets
- Notes on the Comet Designation System
- Close Approaches to the Earth
- Closest Approaches to the Earth
- Designations Assigned in the Past Year
- Periodic Comet Codes
  - In Alphabetical Order
  - In Numerical Order
- Dual-status objects
Computer Service (CS)
- Subscribing to the CS
Links to documentation on MPC formats/procedures
Ephemerides
- Observable Comets
- Bright Minor Planets
  - For 2009
  - For 2008
- Minor Planet Ephemeris Service
- New Object Ephemeris Generator
- Observable Distant Minor Planets
- Observable Critical-List Numbered Minor Planets
Extended Computer Service (ECS)
- Subscribing to the ECS
Feedback Form
Glossary of some astronomical terms
International Astronomical Union (IAU)
- Commission 6 Homepage
Kuiper Belt Objects (see Transneptunian Objects)
Lists
Minor Planet Center (MPC)
- Observation Submission Format
- Services
- Subscribing to MPC Services
Minor Planet Circulars (MPCs)
- Subscribing to the MPCs
Minor Planet Electronic Circulars (MPECs)
- Subscribing to the MPECs
- 20 Most-Recent MPECs
- List of MPEC orbit computers
Minor Planets
- Close Approaches to the Earth
- Close Approaches to the Earth by PHAs
- Closest Approaches to the Earth
- Correspondence of Designations
- Discovery Statistics Of Numbered Minor Planets
- Distribution of minor-planet orbital elements
- Ephemerides of Bright Minor Planets
  - For 2008
- Last Observations of...
  - Critical-List Objects
  - Unusual Objects
- Lightcurve Parameters
  - References for lightcurve parameters
- Names
- Near-Earth Objects (NEOs)
- Provisional Designations
- Size: Converting Absolute Magnitudes to Diameters
- Unusual Minor Planets
- Dual-status objects
Near-Earth Objects (NEOs)
- Amors
- Apollos
- Atens
- Potentially-Dangerous NEOs
- Closest Approaches to the Earth
- The NEO Page
- Designations Assigned in the Past Year
- Breakdown of PHA and NEA discoveries by discovery team/individual
Observations (see Astrometric Observations)
Orbit Diagrams
- Comets
- The Outer Solar System
- Unusual Minor Planets
Orbital Elements
- Observable Comets
- Observable Distant Minor Planets
- Observable Critical-List Numbered Minor Planets
- Observable Unusual Minor Planets
- For software packages
- MPCORB (Complete MPC Orbit Database)
  - Links to mirror sites
Plots
- Distribution of minor-planet semimajor axes
Services
- CBAT
- MPC
Transneptunian Objects (TNOs)
- List of TNOs
- Plot of Outer Solar System
Trojan Minor Planets
- General Listing
- List of Jupiter Trojans
- List of Mars Trojans
Unusual Minor Planets
- Amor Minor Planets
- Apollo Minor Planets
- Aten Minor Planets
- Centaur Objects
- Dates of Last Observation Of Unusual Objects
- Transneptunian Objects
- Trojan Minor Planets
Various Lists and Plots
- Comet
- Minor Planet
- Miscellaneous
Video Observers
- Script for determining mini normal places from video observations
- Documentation (PDF, 660 KB) on using the Normal Places script.
What's New? A list of new or updated pages on this service.