Recent evolutions in esa’s neo coordination centre system

ESA’s NEO Coordination Centre (NEOCC) located at ESRIN (Frascati, Italy) is a major element of the Planetary Defence Office of ESA’s Space Safety Programme [1]. One of its main goals is the generation, collection, integration and display of computed and existing NEO data in order to provide users with up-todate information on NEO hazard monitoring. This is done by operating and maintaining a software system interfacing with the users through a technical web portal publicly available at http://neo.ssa.esa.int. The NEO System is an evolving environment. Since when it was first established in 2012, its functionalities have been steadily growing in terms of available services and data. Several functions are executed at the NEOCC: Follow up of asteroids in need of more observations to improve the knowledge of their orbits. For this, the ESA Optical Ground Station (OGS) is used on a monthly basis, as well as some supporting telescopes like ESO’s VLT and others [2], The Orbit Determination System, which takes astrometric positional data of asteroids from the MPC and computes high-precision orbits from these data. Orbits are later propagated 100 years into the future and the impact risk of these objects is computed, The 'priority list', including a list of NEOs in need of observations. This list was developed by INAF/Rome. The complete code was migrated to ESRIN and is executed and maintained within the Centre, Inclusion of a physical properties database based on the EARN (European Asteroid Research Node) service, which is maintained by G. Hahn.