ИСТИНА

At present, due to complexity of the design of spacecraft and growing use of high-power large-sized antennas, it has become necessary to consider the effect of shading on the SA and research the effects accompanying this phenomenon. We are talking about the reliability of the calculations of the SA parameters at the EOL. In this paper, an attempt has been made to summarize the emerging effects that are new to the normal operation of SA, which allows us to specify the requirements for SA design and SA parameters at the EOL. The effect of partial long-term shadowing with mixed-typed shadows was studied by using of computer modeling tools. The effect of the occurrence of multiple heat waves with fronts of varying intensity was discovered. Also, during long-term shading, a critically high temperature gradient between the shaded and lighted SA parts takes place. Hence, it seems necessary to study this phenomenon in more detail from the point of view of the behavior of materials used in the SA manufacture