Interference prediction for deep space spacecraft from ground stations: interference to the Galileo deep space spacecraft from the GOMS geostationary network

A technique to predict the interference power spectral density from a ground station to a spacecraft in deep space is described. A computer simulation that performs the interference prediction throughout the complete mission is described. The distance between the ground station and the deep space spacecraft is computed. Off-axis antenna gains of the ground station and deep space spacecraft are used in the power spectral density computation. The simulation is used to predict the interference power spectral density from the Russian GOMS ground stations to the Galileo spacecraft. The time that the interference power spectral density is above the Galileo thermal noise density is predicted