According to the China Manned Space Engineering Office, the Tianzhou-2 cargo spacecraft has completed all the scheduled tasks in the space station assembly stage, and has evacuated the space station core module assembly at 15:59 Beijing time today (27th).
Tianzhou-2 has completed all on-orbit tasks and bid farewell to the space station.
At 20:55 on May 29, 2021, the Long March 7 Yao-3 carrier rocket carrying the Tianzhou-2 cargo spacecraft was ignited and launched on time at my country's Wenchang Space Launch Site and accurately entered the predetermined orbit.
About 8 hours later, Tianzhou-2 caught up with the Tianhe core module, and used the autonomous rapid rendezvous and docking mode to precisely dock the rearward port of the Tianhe core module.
Tianzhou-2 carried the astronauts' living materials, extravehicular space suits, space station platform equipment, applied loads and propellants, etc., and waited for the arrival of Shenzhou-12 together with the Tianhe core module.
On June 17, 2021, the Shenzhou-12 manned spacecraft was launched into orbit and successfully docked at the forward port of the Tianhe core module, forming a three-cabin (ship) combination with the previously docked Tianzhou-2 cargo spacecraft.
Three astronauts, Nie Haisheng, Liu Boming and Tang Hongbo, became the first visitors to enter Tianzhou-2.
At 10:25 on September 18, 2021, the Tianzhou-2 cargo spacecraft just said goodbye to the Shenzhou-12 flight crew and performed a "space U-turn".
It separates from the back port of the space station sky and core module, and flies around to the forward port to complete the automatic rendezvous and docking, creating conditions for the arrival of Tianzhou-3 and Shenzhou-13.
At 0:23 on October 16, 2021, the Shenzhou 13 manned spacecraft successfully sent three astronauts, Zhai Zhigang, Wang Yaping, and Ye Guangfu into space.
Since then, with the close cooperation of the Shen 13 crew and ground personnel, Tianzhou-2 has successively completed my country's first transposition test using a space station manipulator to operate a large on-orbit vehicle, and the combination of Tianzhou-2 cargo spacecraft and space station. Remote control rendezvous and docking test.
Zou Xuemei, chief engineer of the cargo spacecraft mission of Beijing Aerospace Flight Control Center: These experiments have carried out a comprehensive verification of our entire flight control normal and emergency plans, as well as the coordination and coordination between our entire systems. Real task implementation has accumulated useful experience.
After ten months in orbit, Tianzhou-2 not only completed its transportation tasks, but also gradually formed a standardized flight control process and flight procedures for the normalized round-trip transportation between heaven and earth in the future, laying a solid foundation for subsequent tasks. .
Zou Xuemei, chief engineer of the cargo spacecraft mission of the Beijing Aerospace Flight Control Center: After the experiment is completed, Tianzhou-2 will deorbit as planned. We are currently controlling such a deorbit twice, and finally re-enter in a controlled state. In the South Pacific, it will be completely disintegrated and burned during the re-entry process, and will not affect these facilities and ships on the ground and sea.Keywords: