1. Department of Astrophysical and Planetary Sciences University of Colorado Boulder Boulder CO USA
2. Laboratory for Atmospheric and Space Physics University of Colorado Boulder Boulder CO USA
3. Space Sciences Laboratory University of California Berkeley CA USA
4. Department of Physics and Astronomy University of Iowa Iowa City IA USA
5. Physics Department University of California Berkeley CA USA
6. LPC2E, CNRS, and University of Orléans Orléans France
7. School of Physics and Astronomy University of Minnesota, Twin Cities Minneapolis MN USA
8. NASA Goddard Space Flight Center Greenbelt MD USA
9. Harvard‐Smithsonian Center for Astrophysics Cambridge MA USA
10. Climate and Space Sciences and Engineering University of Michigan Ann Arbor MI USA