1. Surface Micro & Nano Engineering Laboratory, Centre Spatial de Liège (CSL), Space Sciences, Technologies and Astrophysics Research (STAR) Institute, University of Liège, Avenue du Pré-Aily, Liege Science Park, B29 4031 Angleur, Belgium
2. Thales Research & Technology France, Campus Polytechnique, 1 avenue Augustin Fresnel, 91767 Palaiseau Cedex, France
3. Thales Alenia Space, 5 Allée des Gabins BP99, 06156 Cannes La Bocca Cedex, France