Knowledge about Shenzhou 15

There is a lot of knowledge about Shenzhou 15, such as astronaut's name, flight purpose and launch season.

1. astronaut's name: shenzhou 15. The names of the three astronauts are Zhang, Liu Wang and Cai.

2. Flight purpose: The main purpose of Shenzhou XV is to verify the space station's ability to support crew rotation and realize the astronauts' first on-orbit rotation; Carry out installation and debugging of equipment inside and outside the space station and facilities related to space application tasks, and carry out space science experiments and technical experiments; Carry out routine maintenance of the space station; Verify the normal operation mode of the three modules of the space station. The Shenzhou XV flight crew consists of astronaut Fei, Deng Qingming and Zhang Lu, with Fei as the commander.

3. Launch season: Launch takes place in winter. On that day, Jiuquan Satellite Launch Center ushered in extremely low temperature, and the temperature was close to -20℃ at launch. This is the second time that Jiuquan Satellite Launch Center has carried out a spacecraft launch mission in winter cold weather after the Shenzhou IV launch mission, and it is also the first time to carry out a manned mission under such meteorological conditions.

Overview of Technological Innovation of Shenzhou XV

Shenzhou XV adopted the rapid rendezvous and docking mode, and docked with the front port of the 90-ton space station assembly for the first time to realize rigid connection. The docking ports on the core cabin are fully docked and all docking mechanisms are on duty. In order to achieve reliable and safe docking, the model development team passed 3 1 capture and buffer tests on the ground.

It is verified that the docking mechanism has a single limit deviation. The space station docked two manned spacecraft at the same time for the first time. Among them, Shenzhou XV docked at the forward docking interface of the node module of the space station, and Shenzhou XIV docked at the radial docking interface of the node module of the space station. Because of the different docking positions, the two spacecraft look the same in terms of lighting power generation conditions and communication conditions between heaven and earth.

They are completely different. The shielding of the space station by four groups of ultra-large flexible solar cell wings and three giant cabins leads to the different energy requirements of the two ships and the communication requirements between heaven and earth. Therefore, the development team can not only make the two manned spacecraft realize the freedom of electricity use, but also avoid the risk of electricity use caused by excess energy by carefully formulating the timing of energy grid connection and accurately adjusting the power of energy grid connection.

Reference to the above content: Baidu Encyclopedia-Shenzhou XV