1. School of Physics and Astronomy University of Leicester Leicester UK
2. Blackett Laboratory Imperial College London London UK
3. Max Planck Institute for Solar System Research Göttingen Germany
4. National Institute of Information and Communications Technology Tokyo Japan
5. Department of Geophysics Tohoku University Sendai Japan
6. LESIA, Observatoire de Paris, Université PSL, CNRS, Sorbonne Université, Université de Paris Meudon France
7. Science Department Central Arizona College Coolidge AZ USA