ABSTRACT
Mission analysis is the top-level design of a spacecraft system, which analyzes the user or country's requirements for a spacecraft mission, clarifies the input conditions of spacecraft design, and finds out the technological approaches to mission requirements. Based on the characteristics and objectives of space missions, this chapter describes the process of identifying and analyzing the spacecraft system missions. Through the mission analysis, the basic technological approach to the user's spacecraft mission requirements is found out. According to the system engineering concept, the constraints constitute a spacecraft environment system. In the overall spacecraft concept design, the general designers shall take these constraints as both the original design basis and the final goal. Orbit design is an important part of the overall spacecraft design. The problem to be solved in the design of a networked orbit is to select appropriate single-satellite orbital parameters and a proper networking operation concept according to the mission requirements and the characteristics of a single-satellite orbit.
