1. Skobeltsyn Institute of Nuclear Physics, Moscow State University
2. Lebedev Physical Institute RAS
3. Polar Geophysical Institute, KSC RAS
4. Pushkov Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation RAS
5. Geophysical Center RAS
6. Fedorov Institute of Applied Geophysics, Roshydromet
7. Saint Petersburg State University