Jozsef Bor¹, Karolina Szabone Andre^1,2, Péter Steinbach^3,4, Istvan Lemperger¹, Ernő Dávid⁵, Géza Huba⁵, Péter Lévai⁵, Péter Ván⁵, Mátyás Vasúth⁵ and Nora Liptai⁶, (1)Research Centre for Astronomy and Earth Sciences, Hungarian Academy of Sciences, Geodetic and Geophysical Institute, Sopron, Hungary, (2)Faculty of Science, Eötvös Loránd University, Department of Meteorology, Budapest, Hungary, (3)Eötvös Loránd University, Department of Geophysics and Space Science, Budapest, Hungary, (4)MTA-ELTE Research Group for Geology, Geophysics and Space Sciences, Budapest, Hungary, (5)MTA Wigner Research Centre for Physics, Institute of Particle and Nuclear Physics, Budapest, Hungary, (6)MTA CSFK Lendület Pannon LitH2Oscope Research Group, Geodetic and Geophysical Institute, Research Centre for Astronomy and Earth Sciences, Hungarian Academy of Sciences, Sopron, Hungary