BEIJING, Oct. 20 -- On October 19, Beijing, China’s spacecraft tracking ship Yuanwang-7 set sail for the scheduled waters to carry out maritime telemetry, tracking and command (TT&C) missions. Since the ship returned to the home port in July 2022, the members aboard have engaged in preparations for the follow-up missions, familiarizing themselves with electronic charts, updating meteorological data, planning the main and alternate routes, carrying out equipment maintenance, etc.