ИСТИНА

Space Monitoring Data Center (SMDC) of Moscow State University provides mission support for Russian satellites and give operational analysis and forecasting of radiation conditions in space. SMDC Web-sites (http://smdc.sinp.msu.ru/ and http://swx.sinp.msu.ru/) give access to current data about the level of solar activity, geomagnetic and radiation state of Earth’s magnetosphere and heliosphere in the near-real time. The scientific models of space environment factors have been converted to operational engineering services. They are implemented as space weather Web-applications that provide forecasts of geomagnetic and radiation condition at given satellite orbits. Radiation dose and SEE rate control are of special importance in a practical satellite operation. Satellites are always under the influence of high-energy particle fluxes during their orbital flight. The three main sources of particle fluxes: the Earth’s radiation belts, the galactic cosmic rays, and the solar energetic particles (SEP), are taken into account by SMDC operational services to estimate the radiation dose caused by high-energy particles to a satellite at LEO orbits taking into account the geomagnetic cut-off depending on geomagnetic activity level. Complex analysis of the data “from Sun to Earth” obtained during disturbed period in the end of February 2014 has been carried out on the base of SMDC data and facilities.