1. Laboratory of Atmospheric and Space Physics; University of Colorado Boulder; Boulder Colorado USA
2. Department of Astrophysical and Planetary Sciences; University of Colorado Boulder; Boulder Colorado USA
3. Department of Physics; University of Colorado Boulder; Boulder Colorado USA
4. Department of Physics; Imperial College London; London UK
5. Southwest Research Institute; San Antonio Texas USA
6. Department of Physics; University of New Hampshire; Durham New Hampshire USA
7. NASA Goddard Space Flight Center; Greenbelt Maryland USA
8. Space Physics Research Group; University of California; Berkeley California USA
9. LPP, CNRS, Ecole Polytechnique, UPMC, Université Paris 06, Université Paris-Sud, Observatoire de Paris, Université Paris-Saclay, Sorbonne Universités, PSL Research University; Paris France
10. Swedish Institute of Space Physics; Uppsala Sweden
11. Department of Earth and Space Sciences; University of California; Los Angeles California USA
12. Space Research Institute; Austrian Academy of Sciences; Graz Austria
13. Space and Plasma Physics; Royal Institute of Technology; Stockholm Sweden