EARLY DIAGNOSTICS OF GEOMAGNETIC STORMS BASED ON OBSERVATIONS OF SPACE MONITORING SYSTEMS Journal title: Solar-Terrestrial Physics Authors: Getmanov V.G., Gvishiani A.D., Peregoudov D.V., Yashin I.I., Soloviev A.A., Dobrovolsky M.N., Sidoro... Subject(s): Physics, Atmospheric Sciences