When will the Shenjiu return capsule return to Earth

After 13 days of Shenjiu's flight, the three astronauts will return to the embrace of the earth, and according to the plan, they will land in the territory of the Siziwang Banner in Inner Mongolia. The return time is expected at 8-9 a.m.

The landing phase is the most dangerous. The whole return process takes about 40 minutes, from the orbit at an altitude of more than 300 kilometers to the landing, of which the landing process is about 13 minutes in the last 13 minutes.

When the re-entry capsule deorbits, the speed is about 7 kilometers per second, and when it reaches an altitude of more than 10 kilometers above the ground, the speed will become about 200 meters per second. Then the parachute opens, and then decelerates through the thrust reverser engine unit, which can be reduced to a speed of about one meter second, to ensure a soft landing of the return capsule, and also to ensure the landing of astronauts, this speed is called the safe landing speed.

The gamma altimeter, as a low-altitude controller, sends out a command to remind the astronauts of the impending landing when the re-entry capsule is about 10 meters above the ground; Second, when it was about 1 meter above the ground, a command was also issued to detonate four thrust reverser engines to ensure the soft landing of the return capsule and ensure the safety of astronauts. In addition, there are altitude controllers, such as well pressure height controllers, which will issue parachute opening commands when measuring to an altitude of more than ten kilometers.

Shen Jiu successfully separated from the Heavenly Palace and returned to the ground at around 10 o'clock on the 29th.

After the manual docking is completed, do another day of experiments, and then get ready to go home...

In the second half of the year, I will go up and play again. . .

Abbreviated as Shenzhou-9, planned to be launched) is a manned spacecraft in China's space program and is a series of Shenzhou. The astronauts will carry out relevant space science experiments and return to the ground after completing the scheduled mission. Docking.

This time, the three astronauts are expected to spend 13 days in space. He will return to Earth at the end of June and the beginning of July.

Chinese astronaut Zhai Zhigang has completed a spacewalk. Deng Yibing, chief engineer of the Chinese Astronaut Scientific Research and Training Center, said that if the Shenzhou spacecraft runs smoothly, according to the original plan, the "Shenzhou VII" should return at about 17:40 on the 28th.

Deng Yibing reported on the astronauts' out-of-cabin activities at the Shenzhou-7 Manned Space Flight News Center. He told Chinese and foreign reporters who asked questions at the scene that the time for the astronauts to open the hatch and the time for extravehicular activities were in line with the plan.

As astronauts, we saw Zhai Zhigang's spacewalk like a mother seeing her child just learn to walk, although it was a little staggering, but we were very satisfied. He said.

According to reports, during the return, the astronaut will be subjected to gravitational acceleration. Under normal circumstances, astronauts are subjected to gravitational acceleration of no more than 4 g. Because the Chinese astronauts have been trained in gyration and rotation, they can withstand the gravitational acceleration of 8 g, which can meet the normal return requirements.

If there is an abnormality, it may reach more than a dozen G, and the astronaut's body will be somewhat damaged.

Deng Yibing said that astronauts have medicine to help them when returning and landing, and they should also pay attention to the sitting posture during the return process, which is generally lying down, so that they can bear more pressure when landing, and experienced astronauts will have some sense of protection at the moment of landing.

He said that after the astronauts return to the ground, they need to adapt to the cabin for a period of time, and the doctors will also enter the cabin to deal with them, and the spacecraft will be dark soon after landing, and the search and rescue work will be carried out in the dark night, which is more difficult than before. However, due to the Shenzhou 7 spacecraft's first search and rescue using the "air search and rescue astronauts, ground disposal return capsule" mode, the organization and command of search and rescue, the transportation of search and rescue personnel, the transfer of astronauts and medical supervision and medical insurance, will all be carried out on the first machine, the rescue speed is faster, the search and rescue capability has been strengthened, and the rescue and search and rescue tasks can be guaranteed.

Shen Jiu successfully separated from the Heavenly Palace and returned to the ground at around 10 o'clock on the 29th.

The Shen-9 was lifted off on a Long March-2F Yao-9 rocket, and the return capsule is part of the Shen-9.

Return: At 9:16, the return module of the Shenzhou-9 spacecraft separated from the orbital module. At 9:17, the return brake engine ignited.

At 9:38, the return capsule separated from the propulsion module. At 10:03 on the 29th, the return capsule of the Shenzhou 9 manned spacecraft landed smoothly. It takes 47 minutes.

Launch: Ignition time 18:37:21, 18:49 solar sail panels turned on normally. 12 minutes in total.