Yu W., Starinova O.L. «Flight control in a halo orbit in vicinity of the L2 point in the Earth–Moon system using a solar sail» Вестник МГТУ им. Н.Э. Баумана. Серия: Машиностроение, № 2, с. 70-83 (2025)

In the context of the forthcoming Moon exploration and development initiatives, relay satellites for facilitating communication between the Earth and the Moon, particularly in regard to the far side and Polar Regions of the Moon, where permanent bases are planned, attract significant attention. This study focuses on the solar sails application in controlling motion of such relay satellites aimed at achieving efficient, precise, and long-term orbit keeping. A high-accuracy dynamic model of the spacecraft motion is created based on the ephemeris forecast of the celestial body motion, accompanied by the solar sail dynamic model with the controllable reflectivity. Using these models, the paper determines a reference halo orbit for the solar sail spacecraft in vicinity of the L2 point in the Earth–Moon system (EML2) through application of the multiple-shooting method. Subsequently, a solar sail control algorithm for tracking the reference orbit and applying the sliding mode method is developed, along with determination of the solar sail optimal parameters. A comparative analysis with the China's Queqiao relay satellite that utilizes chemical propulsion for the orbit keeping indicates that introduction of a solar sail could lead to the 66% reduction in the fuel mass for orbit keeping, and achieving the comparable orbit keeping capabilities Please cite this article as: Yu W., Starinova O.L. Flight control in a halo orbit in vicinity of the L2 point in the Earth–Moon system using a solar sail.