Analysis of the Performance of White Paint S781 in Space

The performance of white paint S781 applied to the Fengyun-3 Satellite A and B in space is investigated in this paper. The solar absorptance of S781, including the degradation value in orbit in 5 years, are accumulated and analyzed by calculating the telemetry temperature data from the satellites. The result could provide the reference for other spacecrafts thermal design using the same white paint.