1. DIN and CIRI Aerospace, University of Bologna, Forlì, Italy
2. CIRI Aerospace, University of Bologna, Forlì, Italy
3. CNIT, DEI, University of Bologna, Cesena, Italy
4. European Space Research and Technology Centre, Noordwijk, AG, The Netherlands
5. Modis for ESA, European Space Research and Technology Centre, Noordwijk, AG, The Netherlands