Shenzhou XIII will take a quick return plan in mid-April, and the crew of Shenzhou XIII will return to the ground after staying in space for six months. This time, the quick return plan will be adopted for the first time, and Shenzhou XIII will adopt the quick return plan in mid-April.

Shenzhou XIII will adopt the quick return scheme 1 in mid-April, and the launch conference of "Blue Book of Space Science and Technology Activities in China (202 1)" will be held, and the China Space Station will welcome new news! In 2022, China will launch many space stations.

At the same time, there is also a primary "welcome" task, that is, Shenzhou 13 returns to the ground. In this mission, China will have another powerful challenge, that is, "adopting the quick return scheme for the first time", and "Speed and Passion" will be staged soon, so it is expected.

Of course, the area returned this time is the same as Shenzhou 12, and the Dongfeng landing site was chosen. Many people may have to ask again, is it not difficult to find astronauts in such a big Dongfeng landing site? Let's look at it step by step.

The return of Shenzhou 13 will stage the The Fast and the Furious, and it is planned to return in mid-April.

As we all know, after Shenzhou 13 astronauts entered the space station, three astronauts from China, Zhai Zhigang, Wang Yaping and Ye Guangfu, conducted a six-month mission, and they also "crossed the New Year" on the China Space Station for the first time, which is historic for the China Space Station. Shenzhou 13 manned spacecraft is scheduled to return in mid-April after completing the longest six-month docking mission so far.

The biggest highlight of this return with Shenzhou 12 manned spacecraft may be the adoption of the quick return scheme for the first time. Therefore, the return of Shenzhou 13 will stage "Speed and Passion".

How fast this "quick return" is has not been disclosed for the time being. However, judging from this scheme, it is actually the first time to adopt a quick return scheme. To be sure, compared with Shenzhou 12 manned spacecraft returning to the ground, the speed may be faster, that is, the flight time in space may be shorter.

After this mission, China will also carry out the Shenzhou 14 launch mission, and will cooperate with the space station to complete the rendezvous, docking and transposition tasks of the Quest experimental module and the dream experimental module, and cooperate with the assembly and construction tasks of the space station.

At the same time, Shenzhou 15 will be launched later to challenge the first docking of two manned spacecraft and realize the rotation of six astronauts in orbit. Therefore, 2022 will be China's "Year of Space", and the construction of the space station will be finally completed.

Why did Shenzhou 13 choose Dongfeng Landing Site again?

In fact, this problem was already mentioned when the Shenzhou 12 manned spacecraft returned. From 1 Shenzhou1in 1999 to Shenzhou 1 1 in 20 16, whether manned or not, the final landing point of the return capsule is Siziwangqi, which has always been China manned space flight.

When Shenzhou 12 manned spacecraft carried out its mission, China chose the Dongfeng landing site, and Shenzhou 13 chose the Dongfeng landing site, which must have its advantages.

Dongfeng Landing Site is located in Ejina Banner, Inner Mongolia, with an area of 20,000 square kilometers, close to Dongfeng Aerospace City (Jiuquan Satellite Launch Center). Shenzhou 12 used to be a backup landing site, but it became a "full member" after Shenzhou 12.

Compared with Siziwangqi, the Dongfeng landing site is also vast and sparsely populated, but the big difference is that one is sandy grassland and the other is desert Gobi, but its own geographical environment fully meets the landing requirements.

Secondly, compared with Siziwangqi, Dongfeng Landing Site has more advantages in distance, and can quickly realize "in-cabin landing" without having to travel thousands of miles to prepare, so it is very good. This is the general situation.

20,000 square kilometers, how to search for astronauts?

With the previous experience of Shenzhou 12, perhaps the biggest highlight of Shenzhou 13 is the improvement of "reaction speed".

When Shenzhou 12 returned, people were initially worried that they could not make an accurate landing site, mainly because Shenzhou 12 was affected by the atmosphere such as airflow, temperature and wind during the landing, so the landing site was deviated.

However, as long as the corresponding height is input, the change will not be great. At the same time, there is a huge bright spot on Shenzhou 12-China's Beidou system. Shenzhou 12 spacecraft carries the navigation terminal of Beidou, so it can realize accurate positioning and speed measurement. Then the ground personnel can lock according to these data.

As long as it is not in the black box, it can be connected, so in fact, when the return capsule returns, we have been monitoring it in real time, so we can basically lock the position before reaching the ground, and then we can search for the specific location where the manned spacecraft returns.

Therefore, since Shenzhou 12 adopts Beidou system, Shenzhou 13 may also adopt it. 20,000 square kilometers, how to search for astronauts? You just need to lock it with Beidou system. Even for a site of 40,000 square kilometers, search is not a problem.

Finally, we wish the three astronauts a safe return. You have made great contributions to the construction of China Space Station. At the same time, it also created the history of China's space station. Thanks for your hard work.

Of course, there is also good news here, that is, during the construction of China Space Station, it was recognized by many countries, and 17 countries were selected as China Space Station.

For example: Switzerland, Poland, Germany, Italy, Norway, France, Spain, Netherlands, India, Russia, Belgium, Kenya, Japan and so on. In the future, they may also use the China Space Station to create scientific miracles. The United States was rejected in the application. See if it can join in the future. Let's look forward to the rapid completion of the China Space Station.

Shenzhou XIII will take a quick return plan in mid-April. It is reported that the Shenzhou-13 manned spacecraft will adopt the quick return scheme for the first time, and it is planned to carry out the return mission in mid-April.

This year, China Aerospace Science and Technology Corporation plans to arrange more than 50 space launch missions throughout the year and launch more than 140 spacecraft. Among them, the construction of the space station is the top priority of the annual space mission, and in this process, the astronauts of the space station will "change shifts" in orbit for the first time. The development of the fourth phase of the lunar exploration project and other models will also be focused on this year. The Blue Book of Space Science and Technology Activities in China (202 1) released by China Aerospace Science and Technology Corporation on the 9th disclosed these news.

Shenzhou 13 astronauts take a group. Xinhua News Agency

Ma Tao, deputy director of the space department of China Aerospace Science and Technology Corporation, said that in 2022, the group will complete six major tasks of manned space station project, build a space station in an all-round way, and push China's space development to a new height. The Long March 6A carrier rocket will complete its first flight, launch a number of national civil space infrastructure scientific research satellites and operational satellites, and focus on the development of the fourth phase of the lunar exploration project, asteroid detectors and other models.

The crew of Shenzhou XIII on business trip in space will return to the ground after staying in space for six months. Shao Limin, deputy manager of the manned spacecraft system engineering technology of the Fifth Academy of China Aerospace Science and Technology Group, said that the Shenzhou-13 manned spacecraft will adopt the quick return scheme for the first time and land at the Dongfeng landing site to improve the comfort and mission execution efficiency of astronauts.

During the construction stage of the space station, six spacecrafts, namely Tianzhou-4, Shenzhou-14, Experiment 1, Experiment 2, Tianzhou-5 and Shenzhou-15, will be launched in turn. After the completion of the space station, the activity space in the cabin will exceed 1 10 cubic meter, which can accommodate 3 people for a long time and 6 people for a short time. After completing the on-orbit test of functions and performance, it will be transferred to the operation stage.

The launch missions of Shenzhou XIV and XV manned spacecraft will be undertaken by the Long March II F carrier rocket. Liu Feng, deputy chief designer of the Long March II F launch vehicle of the First Academy of China Aerospace Science and Technology Corporation, said that the Long March II F Yao 14, as an emergency rescue rocket for Shenzhou XIII, had been "on standby" at the launch site for four months and was in good condition. After the return of Shenzhou 13 astronauts, they will be relieved of emergency duty and transferred to other posts to undertake the launch mission of Shenzhou 14 spacecraft.

Berlin Hou, deputy chief designer of the space station system of the Fifth Academy of China Aerospace Science and Technology Corporation, said that this year, the space station will dock two Shenzhou manned spacecraft, Shenzhou 14 and Shenzhou 15, for the first time to realize the rotation of six astronauts in orbit, and realize the combined flight of six spacecraft for the first time. The on-orbit construction of space station is intensive and interrelated. Docking and separation actions will reach more than ten times. At the same time, new tasks such as module transposition, arm assembly and cargo unloading will be implemented, and the state control of space station assembly is extremely complicated. After the construction of the space station is completed, astronauts will continue to stay and carry out multi-field space science and technology experiments.

Chen Xiaofei, deputy chief designer of the Long March-8 launch vehicle of the First Academy of China Aerospace Science and Technology Corporation, revealed that the Long March-8 Tele-2 rocket is expected to be launched from the end of February to the beginning of March this year, carrying 22 satellites from seven satellite development units, which will set a record for the largest number of satellites launched at one time in China.

In 20021year, China Aerospace ranked first in the world with 55 launches, with a total of 1 15 ships, with a total payload of 19 1. 19 tons, up 85.5% year-on-year. This year, China has made great progress in space launch activities, spacecraft development activities, space application services, commercial space and international cooperation.

Shenzhou XIII will adopt the Fast Return Plan 3 in mid-April, and the launch conference of "Blue Book of China Aerospace Science and Technology Activities (202 1)" will be held in Beijing on the 9th. The reporter learned from the meeting that the Shenzhou-13 manned spacecraft will adopt the quick return scheme for the first time, and it is planned to carry out the return mission in mid-April.

The mission planning of China Space Station includes three stages: key technology verification stage, construction stage and operation stage, and is currently in the key technology verification stage. Berlin Hou, deputy chief designer of the space station system of the Fifth Academy of China Aerospace Science and Technology Corporation, said that after the Shenzhou-13 astronauts returned to the ground for half a year in April this year, the research team will conduct a comprehensive evaluation of the key technology verification of the space station. After the results meet the requirements, the space station will be transferred to the construction stage.

"In the construction stage, six spacecraft, namely Tianzhou-4, Shenzhou-14, Experiment 1 and Experiment 2, Tianzhou-5 and Shenzhou-15, will be launched in turn, and the rendezvous, docking and transposition of Experiment 1 and Experiment 2 with the core cabin will be completed in a manned state, and finally the construction of the T-shaped space station will be completed; After the construction is completed, the functional performance is tested in orbit and then transferred to the operation stage. " Berlin Hou said.

Talking about the mission characteristics of China Space Station in 2022, Berlin Hou said that the missions are closely linked and highly coupled; Spacecraft are docked and separated many times in orbit, which makes the assembly complex and difficult to manage. The tasks such as transposition in the cabin, joint operation of large and small arms, and cargo leaving the cabin are all new.

In addition, Shao Limin, deputy manager of manned spacecraft system engineering technology in the Fifth Academy of China Aerospace Science and Technology Corporation, introduced the mission arrangement of manned spacecraft in 2022. He said that after completing the longest six-month docking mission of the Shenzhou-13 manned spacecraft so far, it is planned to carry out the return mission in mid-April and land at the Dongfeng landing site by adopting the quick return scheme. After the launch of Shenzhou XIV, it will cooperate with the space station to complete the rendezvous, docking and transposition tasks of the Quest experimental module and the dream experimental module, and cooperate with the assembly and construction tasks of the space station.

Shao Limin said that after the launch of Shenzhou XV, China Space Station will dock two manned spacecraft for the first time, and let six astronauts rotate in orbit in groups. The ground will simultaneously monitor the docking status and operation management of the two manned spacecraft. At the same time, the Shenzhou 16 manned spacecraft will be on standby at the launch site as an emergency rescue ship.

This year, China's space station mission will achieve several firsts. Shao Limin pointed out that Shenzhou XIII will complete the combined docking mission for the first time, and implement the quick return for the first time, further improving the comfort of astronauts and the efficiency of mission execution; Two manned spacecraft, Shenzhou 14 and Shenzhou 15, docked at the space station at the same time, forming a six-cabin combined configuration for the first time. The mission status of uninterrupted manned space station is established by grouping and taking turns.