1. Department of Mathematics and Statistics Memorial University of Newfoundland St. John's Newfoundland Canada
2. Department of Space Physics, School of Electronic Information Wuhan University Wuhan China
3. Center for Space Physics Boston University Boston MA USA
4. Department of Physics Augsburg College Minneapolis MN USA
5. Birkeland Centre for Space Science, Department of Physics and Technology University of Bergen Bergen Norway
6. The University Centre in Svalbard Longyearbyen Norway
7. Center for Space Science and Engineering Research Virginia Tech Blacksburg VA USA
8. Fundamental Technologies LLC Lawrence KS USA
9. Space Department The Johns Hopkins University Applied Physics Laboratory Laurel MD USA