Research on satellite On-orbit maintenance technology

On-orbit maintenance (OOM) refers to a type of space operation that is finished by people, robots, or both in space to extend the life of various spacecraft. Recently, there are two types of OOM, manned OOM and autonomous OOM. With more and more satellites are sent into space, more and more attention is paid to satellite OOM by the space powers. According to the present situation and development trend of satellite OOM, this paper puts forward a new satellite OOM system based on space stations. This system is a combination of the two types and consists of three subsystems including the service system, the client system and the auxiliary system in consideration of the needs of satellite OOM in the process of maintenance operations. In order to make a maintenance service more reasonable, three steps like determine the service spacecraft, locate the execution position and choose the service mode in mission OOM planning is presented. At last, the general process to execute an OOM task is designed, which shows the close coordination of different components of this OOM system.