1. Max‐Planck‐Institut für extraterrestrische Physik Garching Germany
2. Thayer School of Engineering Dartmouth College Hanover NH USA
3. Birkeland Centre for Space Science University of Bergen Bergen Norway
4. Max‐Planck‐Institut für Sonnensystemforschung Göttingen Germany
5. Space Sciences Laboratory University of California Berkeley CA USA
6. Department of Physics and Astronomy Dartmouth College Hanover NH USA