1. School of Space and Environment; Beihang University; Beijing China
2. Laboratory for Atmospheric and Space Physics; University of Colorado Boulder; Boulder Colorado USA
3. Space Sciences and Applications Group; Los Alamos National Laboratory; Los Alamos New Mexico USA
4. Space Sciences Group; The New Mexico Consortium; Los Alamos New Mexico USA
5. Institue for the Study of Earth, Oceans, and Space; University of New Hampshire; Durham New Hampshire USA