1. Institute of Geophysics and Meteorology University of Cologne Cologne Germany
2. School of Electrical Engineering KTH, Royal Institute of Technology Stockholm Sweden
3. Johns Hopkins University Baltimore MD USA
4. Southwest Research Institute San Antonio TX USA
5. Department of Physics and Astronomy University of Texas at San Antonio San Antonio TX USA
6. University of Colorado Boulder CO USA
7. Université de Liège LPAP ‐ STAR Institute Liège Belgium
8. Applied Physics Laboratory Johns Hopkins University Laurel MD USA
9. Planetary Science Institute Tucson AZ USA
10. Department of Physics and Astronomy University of Iowa Iowa City IA USA
11. Jet Propulsion Laboratory California Institute of Technology Pasadena CA USA