Paul Tenfjord¹, Nikolai Østgaard², Robert J Strangeway³, Michael Hesse¹, Jone Reistad², Karl Laundal², Anders Ohma², Stein Haaland⁴ and Steve E. Milan⁵, (1)University of Bergen, Bergen, Norway, (2)University of Bergen, Birkeland Centre for Space Science, Bergen, Norway, (3)Univ California, Los Angeles, CA, United States, (4)Max-Planck Institute, Goettingen, Germany, (5)University of Leicester, Leicester, United Kingdom