1. Department of Climate and Space Sciences and EngineeringUniversity of Michigan Ann Arbor Michigan USA
2. Department of Physics and AstronomyUniversity of Leicester Leicester UK
3. Key Laboratory of Earth and Planetary Physics, Institute of Geology and GeophysicsChinese Academy of Sciences Beijing China
4. School of Earth and Space SciencesPeking University Beijing China
5. Heliophysics Science DivisionNASA Goddard Space Flight Center Greenbelt Maryland USA
6. Solar System Exploration DivisionNASA Goddard Space Flight Center Greenbelt Maryland USA
7. Department of Physics and AstronomyUniversity of Texas at San Antonio San Antonio Texas USA
8. Space Science and Engineering DivisionSouthwest Research Institute San Antonio Texas USA
9. Department of Physics and AstronomyUniversity of Southampton Southampton UK