The Lander is at a 25 km Lunar altitude and an orbital period of approximately 110 minutes. After separation occurs the Lander is completely self sufficient.
Project X pedition Spacecraft Senior Design – Spring 2009 .
Space News Update - January 28, 2014 - In the News Story 1: Story 1: Yutu Rover Suffers Significant Setback at Start of 2nd Lunar Night Story 2: Story.