China News Service, Beijing, December 14 (Qi Chuang Gaochao Guo Chaokai) The reporter learned from the China Satellite Marine Monitoring and Control Department that on the morning of December 14, the Yuanwang 5 ship, which successfully completed three marine monitoring and control missions in the Pacific Ocean, returned to China safely. The terminal of the satellite marine monitoring and control department.

  It is understood that due to the adjustment of the launch mission time of a certain type of satellite, the Yuanwang 5 ship timely revised its sailing plan and returned ahead of schedule. The voyage operated for 82 days at sea and sailed safely for more than 18,000 nautical miles.

So far, the Yuanwang 5 ship has accumulated 223 days of marine operations this year, a record high, with a total voyage of more than 510,000 nautical miles, which is equivalent to 23.7 circles around the earth.

Photo by Wang Luyao, Yuanwang 5

  During this ocean-going voyage, the Yuanwang 5 ship has successively overcome severe challenges such as complex sea conditions, bad weather, and time difference span.

Especially in the Chang'e 5 launch mission, Yuanwang 5 ship and Yuanwang 6 ship jointly carried out marine measurement and control, through exploration to achieve variable course and variable speed measurement, and successfully completed the end of the rocket's first stage and the first stage of the second stage. Rocket measurement and orbiter measurement and control tasks in the orbit section and the orbit section, and use the remote measurement data before and after the separation of the rocket and the rocket to calculate the orbit parameters of the probe.

  During the mission, the two ships continued to measure and control for more than 1100 seconds, and accurately and efficiently sent real-time measurement and control data to the Beijing Aerospace Flight Control Center and Wenchang Aerospace Launch Command Center, effectively ensuring the primary and secondary separation of the rocket, the secondary shutdown of the secondary, and the separation of the rocket. Wait for key actions, and implement the initial orbit determination of the probe into the orbit section to provide key measurement and control support for "Chang'e Feitian".

Photo by Wang Luyao, Yuanwang 5

  During the voyage, based on existing conditions, post personnel independently carried out equipment overhaul and maintenance work, discovered and properly resolved more than 20 hidden equipment problems, ensuring absolute navigation safety and complete mission success.

After docking at the pier, Yuanwang No. 5 ship will coordinate and organize personnel rest, equipment maintenance, and spare parts supplementation, so as to make preparations in advance for the re-anchor voyage in the near future.

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