Mission design of Chang'e-4 probe system

Abstract

Chang'e-4 will become the first probe which soft-land on the farside of the Moon, carry out in-situ and patrol exploration, and transmit the data back to the Earth through relay satellite. Compared with the lunar landing mission on the nearside of the Moon, the soft-landing on the farside of the Moon has important scientific significance and engineering challenges. In this paper, the scientific and engineering objectives of Chang'e-4 are introduced, and the composition of the probe system and the outline of the flight mission are described, and the safety landing on complex lunar terrain, relay communication, temperature acquisition in moonnight and payload are mainly designed.