The International Astronomical Union Minor Planet Center

MPC Preparation (Info)

MPC Index

This index is intended to help you find the information you need.

Please use this feedback form to alert us to any non-functioning links.

---

• 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

• 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
  • 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

• Links to documentation on MPC formats/procedures

• Ephemerides
  • Observable Comets
  • Bright Minor Planets
    • For 2018
  • Minor Planet Ephemeris Service
  • New Object Ephemeris Generator
  • Observable Distant Minor Planets
  • Observable Critical-List Numbered Minor Planets

• Extended Computer Service (ECS)

• Feedback Form

• International Astronomical Union (IAU)

• Kuiper Belt Objects (see Transneptunian Objects)

• Lists

• Minor Planet Center (MPC)
  • Observation Submission Format
  • Services
  • Subscribing to MPC Services

• Minor Planet Circulars (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
  • Discovery Statistics Of Numbered Minor Planets
    • Alphabetical Listing
    • By Number of Discoveries
    • By Site
    • By Year of Discovery
  • Distribution of minor-planet orbital elements
  • Ephemerides of Bright Minor Planets
    • For 2018
  • Last Observations of...
    • Critical-List Objects
    • Unusual Objects
  • Lightcurve Parameters
    • References for lightcurve parameters
  • Names
    • Alphabetic list of names
    • How minor planets are named
    • Rock & Roll Minor Planets
  • Near-Earth Objects (NEOs)
    • Amors
    • Apollos
    • Atens
    • Potentially Hazardous Asteroids (PHAs)
    • Closest Approaches to the Earth
    • The NEO Page
    • Designations Assigned in the Past Year
    • Breakdown of PHA and NEA discoveries by discovery teams/individuals
  • Provisional Designations
    • New-Style Provisional Designations
    • Old-Style Provisional Designations
    • Temporary Designations
  • Size: Converting Absolute Magnitudes to Diameters
  • Unusual Minor Planets
    • Amor Minor Planets
    • Apollo Minor Planets
    • Aten Minor Planets
    • Centaur Objects
    • Transneptunian Objects
    • Trojan 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.