Heat Radiation Impact Modeling on the Spacecraft Construction Elements

At the present time space mission Luna-25, which is a part of the lunar space program Luna-Resource, is developing by Federal Space Agency in collaboration with European Space Agency (ESA) which is intended to land spacecraft (SC) in Moon’s south pole to take soil examples and return to Earth. This program is of high scientific interest in global space community. In this project actively participates European companies and domestic organizations as well, including NPO Lavochkin, Space Research Institute of the Russian Academy of Sciences and ESA. The aim of the mission Luna 25 and Luna-Glob, as part of a program of Luna-Resource, a preliminary surface studies in the South pole of the Moon, in order to determine the most favorable places for landing subsequent spacecraft, and to clarify the presence of ice in the lunar regolith. Since the work of the SC will occur in the extreme conditions of the lunar surface, during the mission planning it is needed to simulate this conditions to determine the initial data for the unit design as a part of landing complex. In this work, we carried out simulation modeling of the impact of direct and indirect solar radiation, infrared radiation associated with a temperature of surface and moon light reflections on the elements to each other of the spacecraft located at the surface Moon with respect of its rotation and position in space. Modelling of thermal flows is designed as a console application written in C ++ programming language.