*Paul Prikryl^1,2, Reza Ghoddousi-Fard³, Ari Viljanen⁴, James M Weygand⁵, Bharat S R Kunduri⁶, Evan G Thomas⁷, J Michael Ruohoniemi⁶, Martin Connors⁸, Donald W Danskin², P T Jayachandran¹, Knut S Jacobsen⁹, Yngvild L Andalsvik⁹, Tibor Durgonics¹⁰, Kjellmar Oksavik^11,12, Yongliang Zhang¹³, Emma Spanswick¹⁴, V Sreeja¹⁵, Marcio Aquino¹⁵ (1.Physics Department, University of New Brunswick, Fredericton, NB, Canada, 2.Geomagnetic Laboratory, Natural Resources Canada, Ottawa, ON, Canada, 3.Canadian Geodetic Survey, Natural Resources Canada, Ottawa, ON, Canada, 4.Finnish Meteorological Institute, Helsinki, Finland, 5.Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA, USA, 6.Bradley Dept. of Electrical and Computer Engineering, Virginia Tech, Blacksburg, VA, USA, 7.Thayer School of Engineering, Dartmouth College, Hanover, NH, USA, 8.Athabasca University, Edmonton, Alberta, Canada, 9.Norwegian Mapping Authority, Hønefoss, Norway, 10.Technical University of Denmark, National Space Institute, Kongens Lyngby, Denmark, 11.Birkeland Centre for Space Science, Department of Physics and Technology, University of Bergen, Bergen, Norway, 12.The University Centre in Svalbard, Longyearbyen, Norway, 13.Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA, 14.Department of Physics and Astronomy, University of Calgary, AB, Canada, 15.Nottingham Geospatial Institute, University of Nottingham, Nottingham, UK)

*Martin G Connors^1,2,3, Ian Schofield¹, Kyle Reiter¹, Christopher T Russell⁵, Sebastien Guillon⁴, Paul Prikryl^6,7, Kazuo Shiokawa², Mark Engebretson⁸, Peter Chi⁵, Jesper Gjerloev⁹ (1.Athabasca University, 2.ISEE, Nagoya University, 3.Department of Physics and Astronomy, University of Calgary, 4.Hydro Quebec, 5.IGPP, UCLA, 6.University of New Brunswick, 7.Geomagnetic Laboratory, NRCan, 8.Augsburg College, 9.Applied Physics Laboratory, Johns Hopkins University)

*Paul Prikryl^1,2, Takumi Tsukijihara³, Koki Iwao⁴, Donald B Muldrew⁵, Robert Bruntz⁶, Vojto Rušin⁷, Milan Rybanský⁸, Maroš Turna⁹, Pavel Štastný⁹, Vladimír Pastircák⁹ (1.Physics Department, University of New Brunswick, Fredericton, NB, Canada, 2.Geomagnetic Laboratory, Natural Resources Canada, Ottawa, ON, Canada, 3.Department of Earth and Planetary Sciences, Kyushu University, Fukuoka, Japan, 4.National College of Technology, Kumamoto College, Yatsushiro, Japan, 5.Emeritus, Communications Research Centre, Ottawa, ON, Canada, 6.Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA, 7.Astronomical Institute, Slovak Academy of Sciences, Tatranská Lomnica, Slovakia, 8.Slovak Central Observatory, Hurbanovo, Slovakia, 9.Slovak Hydrometeorological Institute, Bratislava, Slovak Republic)

*Paul Prikryl^1,2, Takumi Tsukijihara³, Koki Iwao⁴, Donald B Muldrew⁵, Robert Bruntz⁶, Vojto Rušin⁷, Milan Rybanský⁸, Maroš Turna⁹, Pavel Štastný⁹, Vladimír Pastircák⁹ (1.Physics Department, University of New Brunswick, Fredericton, NB, Canada, 2.Geomagnetic Laboratory, Natural Resources Canada, Ottawa, ON, Canada, 3.Department of Earth and Planetary Sciences, Kyushu University, Fukuoka, Japan, 4.National College of Technology, Kumamoto College, Yatsushiro, Japan, 5.Emeritus, Communications Research Centre, Ottawa, ON, Canada, 6.Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA, 7.Astronomical Institute, Slovak Academy of Sciences, Tatranská Lomnica, Slovakia, 8.Slovak Central Observatory, Hurbanovo, Slovakia, 9.Slovak Hydrometeorological Institute, Bratislava, Slovak Republic)