Justyna M Sokol^1,2, Marzena A. Kubiak³, Maciej Bzowski³, Eberhard Moebius⁴ and Nathan Schwadron⁴, (1)Space Research Center Polish Academy of Sciences, Warszawa, Poland, (2)Princeton University, Department of Astrophysical Sciences, Princeton, NJ, United States, (3)Space Research Centre Polish Academy of Sciences, Warsaw, Poland, (4)University of New Hampshire, Durham, NH, United States