1. Space Physics Laboratory, Vikram Sarabhai Space Centre, Department of Space; ISRO; Trivandrum; India
2. Meteorology Facility, Satish Dhawan Space Centre, Department of Space; ISRO; Sriharikota; India
3. Swedish Institute of Space Physics; Kiruna; Sweden
4. Radio and Atmospheric Sciences Division, National Physical Laboratory; CSIR; New Delhi; India