1. Department of Physics, Engineering Physics & Astronomy, Queen’s University, Kingston, ON K7L 3N6, Canada
2. Department of Physics and Space Science, Royal Military College of Canada, PO Box 17000 Kingston, ON K7K 7B4, Canada
3. Department of Physics and Astronomy, University of Delaware, Newark, DE 19716, USA
4. Nicolaus Copernicus Astronomical Center, Bartycka 18, PL-00-716 Warsaw, Poland
5. Instituut voor Sterrenkunde, KU Leuven, Celestijnenlaan 200D, B-3001 Leuven, Belgium
6. Département de Physique et d’Astronomie, Université de Moncton, Moncton, NB E1A 3E9, Canada
7. Department of Physics and Astronomy, Uppsala University, SE-751 20 Uppsala, Sweden
8. LESIA, Paris Observatory, PSL University, CNRS, Sorbonne Université, Université de Paris, 5 place Jules Janssen, F-92195 Meudon, France
9. Department of Theoretical Physics and Astrophysics, Masaryk University, Kotlár̆ská 2, CZ-611 37 Brno, Czech Republic