A gravity field model for Mars

Exploration of the Moon and Mars has been a focal point for several countries. The development of China's first Mars mission Yinghuo-1, and the history, status and prospects of the Martian gravity field model are briefly reviewed. First, the multiple significance of exploring Mars and the role of the Martian gravity field model in this exploration are discussed, followed by a detailed description of the model. Finally, the potential contribution of the orbital tracking data of Yinghuo-1 to this model is discussed, based on which suggestions for China's future Martian gravity detection program are given.