China's spacecraft tracking ship.
China's spacecraft tracking ship Yuanwang-3 has set sail for the southern Pacific Ocean from a port in east China's Jiangsu Province for future satellite maritime monitoring missions.
Before the voyage, crew members analyzed possible difficulties and risks, carried out overall examinations and tests and received training to ensure the success of the missions.
China currently has four Yuanwang tracking ships. Yuanwang-7 sailed to the Pacific Ocean and Yuanwang-5 to the Indian Ocean in May, respectively. Yuanwang-6 began its first overhaul at the end of April.
In 2019, the country will have more than 30 space launches, and the Yuanwang fleet will operate for more than 700 days at sea.