Application of time transfer functions to<i>Gaia</i>’s global astrometry
Application of time transfer functions to<i>Gaia</i>’s global astrometry
Context. A key objective of the ESA Gaia satellite is the realization of a quasi-inertial reference frame at visual wavelengths by means of global astrometric techniques. This requires accurate mathematical and numerical modeling of relativistic light propagation, as well as double-blind-like procedures for the internal validation of the results, before …