1. Jet Propulsion Laboratory; California Institute of Technology; Pasadena California USA
2. Physics and Astronomy Departments; Glendale Community City College; Glendale California USA
3. Physics and Astronomy; University of Iowa; Iowa City Iowa USA
4. CSPAR; University of Alabama in Huntsville; Huntsville Alabama USA
5. Institute of Atmospheric Physics; ASCR; Prague Czech Republic
6. Faculty of Mathematics and Physics; Charles University; Prague Czech Republic
7. Indian Institute of Geomagnetism; Navi Mumbai India