Conclusions from the OTS data analysis at the Fucino station

Rain attenuation variations with the incidence angle of the space-ground communication beam, the long term statistical correlation between rain intensity and microwave attenuation, and the characterization of the rain depolarizing effects are considered. For each subject the theory, the results, the input data and the implementation algorithms are discussed. The probability distribution of the OTS and Sirio satellites transmission attenuation are presented. The prediction of the depolarization probability in linear polarization (TM beacon) starting from intrinsic parameters is examined and the results obtained using the implementation algorithms are included.