It is based on a continually and (almost) automatically maintained database of near earth asteroid orbits.
The main service is an impact monitoring system (CLOMON2) of all near-Earth asteroids covering a period until the year 2100.
The database of orbits is continually and automatically maintained with the most recent Minor Planet Center observations.
SpaceDyS provides data and scientific consultancy to the European Space Agency NEO Coordination Centre based in ESRIN, Frascati, Italy.
of mathematics, University of Pisa, Italy), Steve Chesley (Jet Propulsion Laboratory, USA) and María Eugenia San Saturio Lapeña (E.T.S.