The ESA NEO Coordination Centre (NEOCC) is the operative centre of the SSA-NEO Segment. It is located at ESA's establishment ESRIN (Frascati, Italy). Its aim is to coordinate and contribute to the observation of small Solar System bodies in order to evaluate and monitor the NEO hazard.
This implies the availability of advanced systems for orbit computation and impact monitoring, as well as tools and data needed for performing risk assessment (e.g. follow-up priorities, physical properties database). The SSA-NEO segment operates a set of applications, called the NEO software system. The NEO software system provides information not only to scientific users, but also to other SSA customers and stakeholders, such as governmental institutions, insurance companies, the public at large and the media. The stepwise deployment of the NEO system began with a Precursor Services phase, presently on-going and called 'Phase 2'. The key components of the NEO Precursor Services accessible via the SSA-NEO web portal are:
· NEA search: displays dynamical and physical characteristics of any given object;
· NEA catalogues: retrieves complete or filtered NEA lists sorted by parameters (e.g. discovery date, semimajor axis etc.);
· Impact monitoring: displays lists of potentially dangerous objects and the associated parameters (e.g. impact probability, Palermo scale, orbit uncertainty);
· Observer's aid: provides priority criteria for planning follow-up observations;
· Orbit visualization: graphic display of the orbital motion of any NEA;
· Image archive: searchable catalogue of astronomical images provided by ESA's telescopes (or telescopes under agreement with the agency):
· Education and public outreach sections.
The NEO system services rely on the daily processing of NEO data performed by the NEODyS system and on regular updates of the physical properties database of EARN.
We kindly acknowledge Gerhard Hahn (DLR) for providing the EARN data and for keeping our physical properties database updated.
Access to the NEO system data is public; authentication is required for certain elements (sky images and other measurement data) and tools.