The space project Sozvezdie-270 of Moscow University is in progress now. It involves the deployment of a CubeSat nanosatellites constellation. To the present, 20 satellites have been launched, 9 of them continue to function in near-Earth orbit; one more will be launched in the near future. Instruments were developed specifically for the experiments on board small spacecraft of the CubeSat format, which provide measurements of fluxes and spectrum of charged particles, primarily electrons of relativistic and sub-relativistic energies, as well as gamma quanta. Along with the space constellation, a network of ground receiving stations is also being created. A multi-satellite constellation gives a number of advantages in studying dynamic processes in near-Earth space. In particular, it makes it possible to carry out simultaneous measurements of charged particle fluxes with instruments of the same type at different points in near-Earth space. Such measurements provide unique information about the flux of sub-relativistic electrons, including variations due to precipitation of electrons, which is of great importance for understanding the mechanisms of acceleration and losses of trapped and quasi-trapped electrons in Earth’s radiation belts (ERB). We discuss various recent space weather manifestations associated with increased solar flare activity. Among such effects is the filling of the polar caps with particles of solar cosmic rays, dynamic processes in outer ERB during magnetic storms, rapid variations in electron fluxes due to precipitation.We discuss various recent space weather manifestations associated with increased solar flare activity. Among such effects is the filling of the polar caps with particles of solar cosmic rays, dynamic processes in outer ERB during magnetic storms, rapid variations in electron fluxes due to precipitation. We discuss various recent space weather manifestations associated with increased solar flare activity. Among such effects is the filling of the polar caps with particles of solar cosmic rays, dynamic processes in outer ERB during magnetic storms, rapid variations in electron fluxes due to precipitation.
Bogomolov et al. (Mon,) studied this question.