1. Indian Centre for Space Physics Calcutta India
2. Department of Computer and Network Engineering, Graduate School of Informatics and Engineering University of Electro‐Communications Tokyo Japan
3. Earth Environment Research Station University of Electro‐Communications Tokyo Japan
4. Center for Space Science and Radio Engineering University of Electro‐Communications Tokyo India
5. S.N. Bose National Centre for Basic Sciences Calcutta India
6. Institute of Medical Informatics and Statistics Christian‐Albrechts‐Universitat zu Kiel Kiel Germany