METHOD FOR SHORT-TERM FORECAST OF ABSORBED DOZE ACCUMULATION DYNAMICS AT INTERNATIONAL SPACE STATION BASED ON RADIATION MONITORING SYSTEM DATA
A large amount of publications is devoted to forecast of radiation environment onboard spacecraft (Khamidullina N.M. et al., 2012; Fichkhadze K.M.et al., 2004; Khamidullina N.M. et al., 2008) and quite a number of software systems were developed for performing relevant calculations: the US information system CREME96 (https://creme.isde.vanderbilt.edu/); the European SFENVIS (http://www. spenvis.oma.be/intro.php); the russian SEREIS (Space model, 2007; Kuznetsov N.V. et al., 2001) and COSRAD (http://cosrad.sinp.msu.ru/manual.html; Kuznetsov N.V. et al., 2011), based on radiation environment models in near-earth space (Space model, 2007; Kuznetsov N.V. et al., 2011; Nymmik R.A., 2004; Bashkirov V.F. et al., 1998). This paper proposes a simple calculation algorithm of short-term (for a few days) forecasting of dynamics of the radiation doze at International Space Station (ISS) in radiation environment undisturbed by solar proton events. This algorithm does not use radiation environment models and detailed ballistic calculations, while it uses data of onboard radiation monitoring system (RMS) and empirical relations, obtained for ISS orbital motion.