Analysis of the 3GM gravity experiment of ESA’s JUICE mission

The ESA’s JUICE mission will provide a thorough investigation of the Jupiter system and the Galilean moons through a suite of ten different scientific instruments. JUICE will perform flybys of Europa and Callisto, and will orbit around Ganymede in the last phase of the mission. The 3GM experiment will exploit accurate Doppler and range measurements to determine the moons’ orbits and gravity fields (both static and tidal) and to infer their interior structure. This paper presents the attainable accuracies from the 3GM geodesy experiment under the current mission scenario. Our analysis includes the use of a high-accuracy accelerometer to remove the dynamical noise induced by propellant sloshing.