supports of this study by the National Natural Science Foundation of China (Nos.11773004,61573049,11303001,61571032);the Major Special Project of the National Lunar Exploration of China
Flight schemes for the CHANG'E-5T1 extended mission are investigated in this paper.In the flight scheme and trajectory design, the remaining propellant of the CHANG'E-5T1 mission is utilized. The CHANG'E-5T1 missio...