1. Space Sciences Laboratory University of California Berkeley CA USA
2. Department of Physics and Astronomy West Virginia University Morgantown WV USA
3. Goddard Space Flight Center Greenbelt MD USA
4. Laboratory for Atmospheric and Space Physics University of Colorado Boulder CO USA
5. Department of Earth Planetary, and Space Sciences University of California Los Angeles CA USA
6. IRAP CNRS ‐ University of Toulouse ‐ UPS ‐ CNES Toulouse France