1. Pushkov Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation RAS
2. Lebedev Physical Institute RAS
3. Geophysical Center RAS
4. Skobeltsyn Institute of Nuclear Physics, Moscow State University
5. Fedorov Institute of Applied Geophysics, Roshydromet
6. Scientific Research Institute for Physics, Leningrad State University
7. Arctic and Antarctic Research Institute, Roshydromet