1. Space Research and Planetary Sciences, Physics Institute, University of Bern , Sidlerstrasse 5, CH-3012 Bern , Switzerland
2. Laboratoire Atmosphéres, Milieux, Observations Spatiales, Institut Pierre Simon Laplace , CNRS, Université Pierre et Marie Curie, 4 Avenue de Neptune, F-94100 Saint-Maur , France
3. Department of Climate and Space Sciences and Engineering, University of Michigan , 2455 Hayward, Ann Arbor, MI 48109 , USA
4. Royal Belgian Institute for Space Aeronomy , BIRA-IASB, Ringlaan 3, B-1180 Brussels , Belgium
5. Space Science Directorate, Southwest Research Institute , 6220 Culebra Rd., San Antonio, TX 78228 , USA
6. Department of Physics and Astronomy, The University of Texas at San Antonio , San Antonio, TX 78249 , USA
7. Science Division, Jet Propulsion Laboratory, California Institute of Technology , 4800 Oak Grove Drive, Pasadena, CA 91109 , USA
8. NCCR PlanetS , Gesellschaftsstrasse 6, CH-3012 Bern , Switzerland
9. Center for Space and Habitability, University of Bern , Gesellschaftsstrasse 6, CH-3012 Bern , Switzerland