1. IRAP Universite de Toulouse CNES CNRS UPS, (Toulouse) Toulouse France
2. ISAE‐SUPAERO Universite de Toulouse Toulouse France
3. Laboratory for Atmospheric and Space Physics University of Colorado Boulder CO USA
4. Department of Astronomy University of Maryland College Park MD USA
5. NASA Goddard Space Flight Center Greenbelt MD USA
6. School of Physics and Astronomy University of Leicester Leicester UK
7. Department of Physics and Astronomy University of Iowa Iowa City IA USA