Final Activity Report Summary - ELSA (European Leadership in Space Astrometry)
Many of the results obtained in the network have an important and direct impact on the development of data processing methods for Gaia, including improved algorithms to solve extremely large systems of equations and detailed physical modelling of the damage caused by cosmic radiation on the optical detectors in Gaia. Other results will help to maximise the scientific return from the Gaia data, for example though improved modelling of stellar properties and the distribution of stars in our galaxy.