1. Institute of Space and Atmospheric Studies University of Saskatchewan Saskatoon Saskatchewan Canada
2. Now at Department of Physics and Astronomy University of Calgary Canada
3. KTH Royal Institute of Technology Stockholm Sweden
4. School of Physics and Astronomy University of Southampton Southampton UK
5. SRI International Menlo Park California USA
6. Physical Sciences Department Embry‐Riddle Aeronautical University Daytona Beach Florida USA
7. Department of Electrical and Computer Engineering and Center for Space Physics Boston University Boston Massachusetts USA
8. School of Physics and Astronomy Queen Mary University of London London UK
9. Department of Communication Engineering and Informatics University of Electro‐Communications Chofu Japan
10. Institute for Space‐Earth Environmental Research Nagoya University Nagoya Japan