Chang'e-2 was launched on Oct. 1, 2010 from Xichang Satellite Launch Center and later orbited the moon to finish a more extensive probe than its predecessor Chang'e-1.
Chang'e-2 left its lunar orbit for an extended mission to the Earth-Sun L2 Lagrangian point on June 9, 2011, after finishing its lunar objectives, which collected data for a complete lunar map.
The probe departed from L2 this year and began its mission to Toutatis.