Introduction The European Space Agency (herein the “Agency” or “ESA”) is an intergovernmental organisation established by its Convention opened for signature in Paris on 30 May 1975 having its...

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Last update: 2020-12-04 10:00 UTC On this page, the NEOCC provides problems (we call them 'riddles') related to the observation of NEOs, their dynamics and their characterisation. In irregular...

It is possible to visualise the orbits of all asteroids in our database by entering their name, provisional designation or catalogue number. The position along the orbit is computed at regular time...

Asteroid and Comet Trajectory Propagator (NEOPROP) In 2012, Astos Solutions developed for ESA a new orbital propagator algorithm in order to assess the potential risk of impact of an NEO. The...

The first part of the Discovery Statistics page

It is widely acknowledged that NEO science is intriguing and often goes against common sense. A clear understanding of the meaning and importance of any text concerning near-Earth objects, their...