BEIJING, March 2 -- Yuanwang-3, China’s indigenous second-generation space tracking ship, left the home port of China Satellite Maritime Tracking and Control Department (CSMTC) for the new mission on March 2. Over the past 20 years, Yuanwang-3 has sailed more than 60 times and completed more than 100 maritime monitoring tasks for spacecraft including the Shenzhou spaceships, Chang'e lunar probes and BeiDou satellites with a 100% success rate.