Massimo Zavagli, B-Open Solutions, Italy; Debora Pastina, Alejandro Testa, Fabrizio Santi, University of Rome “La Sapienza”, Italy; Elena Morando, Technische Universität Berlin, Italy; Chiara Pratola, e-GEOS, Italy; Michela Corvino, European Space Agency-ESRIN, Italy; Mario Costantini, B-Open Solutions, Italy