Here comes the magnificent picture! Chinese space station astronaut's first EVA

8:11, July 4, 2021, Beijing time

Astronaut Liu Boming opens successfully

Tianhe core module node module exit hatch

11:02

Astronauts Liu Boming and Tang Hongbo

China's self-developed

New generation of "Feitian" extravehicular spacesuit

Successfully disembarked from the node module of Tianhe core module

And the foot limiter is installed on the manipulator

And extravehicular worktable, etc

It will be supported by the manipulator

Cooperate with each other

Assembly of related equipment outside the space station

period

Astronaut Nie Haisheng in the cabin

Cooperate and support two extravehicular astronauts to carry out extravehicular operation

This is the picture of Nie Haisheng wearing extravehicular spacesuits for the other two astronauts

12:09 Beijing time

Astronauts Liu Boming and Tang Hongbo cooperated to complete the project

Lifting operation of space station extravehicular panoramic camera

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magnificent!

Pictures taken by the panoramic camera outside the core cabin

The first extravehicular activity of astronauts will install an extension bracket, which will greatly improve the field of vision of panoramic camera a and bring you more space beauty

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China's independent research and development!

Astronauts wear

New generation extravehicular spacesuit

The reporter learned that for this mission, astronauts wear special spacesuits from inside to outside: first they wear underwear, then they wear a layer of liquid cooling suit, and then they wear spacesuits outside the cabin. After putting on the spacesuit, it is necessary to carry out the process of large flow flushing, oxygen absorption and nitrogen removal.

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China Space Station's first extravehicular activity!

What are the missions of the three astronauts?

This morning, the three astronauts of Shenzhou 12 cooperated with each other to carry out the first extravehicular activity of the Chinese space station. After Shenzhou-7 flight crew successfully completed the extravehicular mission, 13 years later, Chinese astronauts carried out the extravehicular mission again.

What are the missions of the three astronauts in this EVA mission? How is the division of labor between each other? Let's get to know!

Three astronauts, clear division of labor!

The three astronauts have a clear division of labor in this astronaut extravehicular activity.

One of the two astronauts will install the upper arm bracket for the manipulator, including the foot limiter, tool table, etc., and then move with the help of the manipulator. With the help of the handrail installed on the bulkhead, another astronaut crawled a certain distance to the operation point for auxiliary work, during which an emergency return verification was conducted.

Wang yanlei, director of the selection and training room of China astronaut Center: because when astronauts do some tasks outside the cabin, in case of emergency, they must quickly and urgently return to the airlock cabin, and then use our onboard emergency oxygen supply to ensure life safety, so we also need to do this aspect of verification.

One of extravehicular astronauts' tasks: raising the position of extravehicular panoramic camera

Another important task of this extravehicular activity is to lift the panoramic camera.

Wang yanlei, director of the selection and training room of China astronaut Center: in advance, due to the limitation of external exposure, the camera was installed in a relatively low position, and its field of view is still limited. After entering orbit, the astronauts need to expand the camera's perspective to monitor the whole situation outside the cabin according to the mission needs, The astronauts need to install a bracket for these cameras, which is higher.

Cabin astronaut: operation control manipulator

In the process of two astronauts leaving the cabin, the astronauts in the cabin need to operate the manipulator. Although the ground personnel can also transfer the manipulator in a large range, when there are astronauts standing on the manipulator, the astronauts in the cabin can more intuitively observe the position of the manipulator, and can more directly communicate with the astronauts outside the cabin.

Wang yanlei, director of the selection and training room of China astronaut Center: at this time, because our ground monitoring means are limited, it is necessary for the astronauts inside the cabin to communicate with the astronauts outside the cabin through voice, including the astronauts inside the cabin to make some judgments through simulation software and the images they see.

In addition, the astronauts can operate the manipulator independently, which has better security.

Wang yanlei, director of the selection and training room of China astronaut Center: on the one hand, through the early warning function of our simulation software, on the other hand, both extravehicular astronauts and in cabin astronauts have emergency stop devices. If an extravehicular astronaut discovers the possibility and risk of collision in the process of movement, he can directly press the emergency stop device, and the mechanical arm will stop working, It is also a multiple means to ensure safety.

Through the astronaut's first extravehicular activities in China's space station, the astronaut's extravehicular ability and emergency ability can be effectively verified, especially for long-time work outside the cabin. The combination of human and equipment provides valuable experience for the subsequent astronauts to maintain the space station.

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