1. Physical Research Laboratory; Ahmedabad India
2. Indian Institute of Technology Roorkee; Roorkee India
3. Utah State University; Logan UT USA
4. Los Alamos National Laboratory; Los Alamos NM USA
5. Indian Institute of Geomagnetism; Navi Mumbai India
6. Space and Atmospheric Science Arecibo Observatory; Arecibo Puerto Rico
7. The Pennsylvania State University; State College PA USA
8. Computational Physics Inc.; Springfield VA USA