Minor Planet Physical Properties Catalogue – Asteroid Database

The MP3C catalogue
  • Version: 3.1.1 (2022-03-29)
  • 1,169,632 minor bodies
  • 3,710,587 measured properties
  • 261 distinct bibliographic sources


The Minor Planet Physical Properties Catalogue (MP3C) collects and consolidates in a single database properties of asteroids and dwarf planets published by different sources.
It currently offers a web interface to different types of queries such as search for a body “ID card” with our best estimates of its properties, search for all measurements known for that body, or filtering on all minor bodies and all measurements by various criteria. Individual measurements are provided with their bibliographic reference. Most results can be exported as raw tabular text files easy to import in various software.

To query the database, simply choose a type of search in the top “Search” menu or enter an asteroid in the search bar.


If you use MP3C to prepare a publication, please add in the acknowledgments: “This work is based on data provided by the Minor Planet Physical Properties Catalogue (MP3C) of the Observatoire de la Côte d'Azur”.

Who uses MP3C?

We maintain here a list of references that have used MP3C.


MP3C is a service developed, hosted and maintained at the Observatoire de la Côte d'Azur, as part of the “Action Nationale d'Observation” INSU ANO5.

The MP3C team members are: Marco Delbo (PI, ), Nicolas Bruot (developer), Chrysa Avdellidou (post-doc), Eric Slezak (advisor) and Christophe Ordenovic (developer).

Credits and partners

MPC3 is supported by the Observatoire de la Côte d'Azur (OCA), through the DOMINO expertise center, and the Institut national des sciences de l'univers (INSU) of the Centre National de la Recherche Scientifique (CNRS) through the ASOV-France project (Action Spécifique Observatoire Virtuel), the Ministère de l'Enseignement Supérieur et de la Recherche, and the Agence Nationale de la Recherche (ANR, ORIGINS project).

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CNRS logo
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MP3C is based on tools and protocols, developed thanks to the efforts of the international astronomical community, through the International Virtual Observatory alliance (IVOA), which led to the construction of the Virtual Observatory (VO). We are thankful, in particular, for the technical and human assistance brought by the European Virtual Observatory (EURO-VO) project and the Centre de Centre de Données astronomiques de Strasbourg (CDS).

Old MP3C

The older MP3C website is still available here. Note, however, that we will take it down at some point.