ABSTRACT
For purpose of solving various applied tasks and performing space-based experiments, low orbits of an altitude under 400 km and high orbits from 1600 km to the geostationary orbit are being considered. Among films based on polymers are: polyolefine, polyvinylchloride, polystyrene, polyethyleneterephtalate, and others. Films from 0.005 to 0.1 mm thick are produced mainly by casting a solution or polymer dispersion to polished surfaces, by extruding melts, by wet moulding, and calendering. Polyimide films of high thermal stability in combination with a high radiation resistance are finding a wide spectrum of applications in different areas including aerospace technology. In using the space-based reflector the main objective is to provide a maximum level of illumination of the region being served. Since the metallized polymeric films are intended to be used within the real sunlight flux, a setup for measuring the mirror reflection factor should meet the requirements for measuring conditions and actual operation environment.
