1. Laboratory for Atmospheric and Space Physics; University of Colorado Boulder; Boulder Colorado USA
2. Space Sciences Laboratory; University of California; Berkeley, California USA
3. Department of Physics and Astronomy; University of Iowa; Iowa City Iowa USA
4. NASA Goddard Space Flight Center; Greenbelt Maryland USA
5. Department of Atmospheric, Oceanic, and Space Sciences; University of Michigan; Ann Arbor Michigan USA
6. Institute of Geophysics and Planetary Physics; University of California; Los Angeles California USA
7. UVSQ/LATMOS-IPSL/CNRS-INSU; Guyancourt France
8. Solar-Terrestrial Environment Laboratory; Nagoya University; Nagoya Japan