Estimation of the Ephemerides and Gravity Fields of the Galilean Moons Through Orbit Determination of the JUICE Mission

Abstract Jupiter and its moons are a complex dynamical system that include several phenomena like tides interactions, moon’s librations resonances. One of the most interesting characteristics Jovian is presence Laplace resonance, where orbital periods Ganymede, Europa Io maintain 4:2:1 ratio, respectively. It to study role resonance in dynamic system, especially regarding dissipative nature tidal interaction between closest moon, Io. The secular evolution Galilean satellites, so strongly influenced by moons, with Numerous theories have been proposed this topic, but they disagree about amount dissipation therefore magnitude direction mainly because lack experimental data. future ESA JUICE space mission great opportunity solve dispute. data will be collect during an exceptional accuracy, allowing investigate aspects dynamics possibly Resonance moons. This work focus on gravity estimation orbit reconstruction satellites precise determination phase using radiometric