1. Laboratory for Space Sciences and Physics Department Washington University CB1105 Saint Louis Missouri 63130 USA
2. ICATE (CONICET‐UNSJ) Avenida España 1512 sur San Juan J5402DSP Argentina
3. Department of the Geophysical Sciences University of Chicago 5734 S. Ellis Ave. Chicago Illinois 60637 USA
4. Central Research Laboratories Natural History Museum Burgring 7 Vienna 1010 Austria