Topography and Illumination Conditions of Chang'E-4 Landing Area

Chang'E-4's landing on the far side of the moon is the first time in the world. The overall slope in Von Kármán crater is relatively gentle, while some areas are relatively steep. There are various impact craters and boulders in the region, and the illumination conditions are different. Therefore, topography and illumination conditions need to be investigate to ensure the safety of the lander and rover. In our work, the slope analysis, crater extraction and illumination analysis of the Von Kármán area are carried out using 30 m resolution DEM generated from LOLA data. Then for the specific landing site, high resolution DEM and DOM are generated from LROC NAC images, and the impact craters, boulders and other topographic features in the landing area as well as a precise slope map are then extracted. Which provides high-precise spatial information to support the scientific exploration of Chang'E-4 project.