Magnetotail fast flow occurrence rate and dawn–dusk asymmetry at XGSM ∼ -60 RE

Stefan Kiehas, Space Research Institute, Graz-St Peter, Austria, Andrei Runov, UCLA, EPSS/IGPP, Los Angeles, CA, United States, Vassilis Angelopoulos, UCLA, Department of Earth, Planetary, and Space Sciences and Institute of Geophysics and Planetary Physics, Los Angeles, CA, United States and Heli Hietala, Queen Mary University of London, London, United Kingdom