The International Astronomical Union's Minor Planet Center (MPC) is responsible for the designation of minor bodies found within our solar system. This includes minor planets, comets, and natural satellites. The MPC is also responsible for collecting, computing, checking, and disseminating astrometric observations and orbital information for those minor bodies.
The Asterank MPC API enables users to apply constraints to the more than 600,000 asteroids documented in the MPC's MPCORB.DAT files. Because the Asterank database runs on MongoDB, queries must use Mongo's JSON format. Information in the Asterank MPC database is updated nightly.