China's space-tracking ship Yuanwang-5 returned to port on December 14 after completing three monitoring missions in the Pacific Ocean. 

The ship, which returned to a port in Jiangsu Province in east China, operated for 82 days at sea, sailing over 18,000 nautical miles. During the voyage, it carried out maritime monitoring of the Chang'e-5 mission along with Yuanwang-6, another space-tracking ship. 

Yuanwang-5 has operated at sea for 223 days in 2020, with total voyage measuring over 510,000 nautical miles.

After docking at the port, crew members will rest, examine the facilities and replenish supplies for upcoming missions.