Since she entered the “Month Palace†on December 14th, 2013, she has been working at her job for 2 years and 7 months. According to the original design, the design life of the Chang'e-3 lander is 1 year, and the design life of the Yutui lunar rover is 3 months. But now, the rabbit who has "read the most stars" said goodbye to us.
"Moon Rider Yutu" became the darling of Chinese social media during the moon's operation. This account has been the spokesman for "Jade Rabbit" and it resigned on July 31st:
"Hi! This is really good night!"
Yutu is China's first lunar rover
At 1:30 on December 2, 2013, China succeeded in bringing the Chang'e-3 detector consisting of the lander and the Yutu lunar rover to orbit at the Xichang Satellite Launch Center.
At 4:35 on December 15, 2013, the Chang'e-3 lander was separated from the patrol, and the Yutu rabbit patrol smoothly reached the surface of the moon.
(Yutu car stamps the first footprint on the moon)
In fact, the successful soft landing of the Chang'e III on December 14th, 2013 in the northeastern part of the lunar and rainy seas was the only time that the human detectors had been realized in the 40 years after the successful landing of Apollo in the 1960s and 70s. The moon is a soft landing . This is the third country in the world following the United States and the Soviet Union to implement a lunar soft landing .
Under such impressive results, the lunar mission of Yutu Rabbit over the past two years was once interrupted.
Yutu was declared to have stopped working in January 2014 and it seemed to stop running after a cold moonlight night. Since then, it can only be accompanied by day and night at a distance of 20 meters. This farewell has caused many netizens to be sad.
(Oh, what seems to be in the chaos?)
It wakes up again a few weeks later, but although it can continue to send data to the earth, it can no longer move. The strong rabbit survived. Although it can't move, it still rises to the sunset and continues to collect data and keep working.
Yutu's transcript
(Yutu)
Yutuo possesses 20-degree climbing and 20-cm obstacle avoidance capabilities, and is equipped with scientific detection instruments such as panoramic cameras, infrared imaging spectrometers, moon sensors, and particle excitation X-ray spectrometers.
Take pictures of the moon;
Explore the moon and moon rock;
Finding moisture;
Detect the intensity of the moon's rays...
Even help Chang'e 3 to complete many "impossible tasks."
First moon profile
The Jade Rabbit was equipped with a lunar radar, and it obtained the profile of the section structure and the geological evolution of the shallow layer of the moon shell at a depth of 330 meters in the landing zone, becoming the world's first lunar geological section.
The scientists also used the data from the rabbits to reveal for the first time the history of volcanic evolution in the lunar sea area.
At the same time, Yutu rabbit used the particle excitation X-ray spectrometer and infrared imaging spectrometer detection data carried on the body to analyze the soil and minerals on the lunar surface and found a new type of lunar basalt.
Particle Excited X-ray Spectrometer and Infrared Imaging Spectrometer for Analysis of Lunar Surface Rocks
(Image from National Defense Technology Industry Bureau)
The first visit to the moon on space
With the cooperation of Yutu, Chang'e III discovered for the first time direct evidence that there was no water on the moon.
Previously, the United States Hubble Space Telescope observed that the water content of the moon surface was two orders of magnitude higher than that observed in China. This observation directly led to the lowest value ever. This is the first time that the international community has clearly verified that there is no water on the moon.
Earth is first seen on the moon
In addition, the moon-based optical telescope on Chang'e III has an ultra-violet camera, which completes the celestial body survey on the first moon and the plasma layer above the earth. For the first time, it has been found that the boundary of the Earth's plasma layer is under the influence of a substorm of the magnetic layer :
First, it reveals the impact of solar activity on the Earth's space environment;
The second is to confirm that the scale of the Earth's plasma layer is inversely related to the intensity of geomagnetic activity, and then puts forward the latest viewpoint that the spatial structure of the plasma layer is constrained and controlled by the Earth's magnetic and electric fields.
Eight scientific payloads
Since the successful landing of the moon in December 2013 and the conduct of inspections, the eight scientific payloads carried by the Japanese and Japanese rabbits have successively carried out various scientific observations and have obtained a total of 7TB of various types of data . This amount of data is undoubtedly not huge for the rabbit with only 256MB of CPU memory.
According to incomplete statistics, more than 100 articles have been published in the SCI and EI domestic and international academic journals through the researches on these data. Important results have been published in science, nature and the Proceedings of the National Academy of Sciences. Some of the top academic journals in the world, some of which also became cover articles, led to the development of international lunar and planetary scientific research and applications.
If all of this is based on a CPU that was 20 years ago at the home computer level , would you be surprised?
In order to be able to operate stably under harsh aerospace conditions, the Jade Rabbit needs to sacrifice performance in exchange for stability.
Unravel the mystery behind the “Moon Roverâ€
In the history of popular science in China, the rabbit has also left a heavy stroke. Through “selling Mengâ€, the lunar rover Yuju has been selected by the China Association for Science and Technology to be the 2014 Top Ten Popular Science Event in China.
These chilly, seemingly inscrutable knowledge of space exploration, seen from the microblogging of the lunar rover rabbit, is particularly affectionate. It uses the first person "I" to represent Yutu Rabbit on the moon landing process of China's first lunar rover.
The basic information of Yutuo’s microblog reads: “The moon is the destination, and the earth is the homeland â€.
Although there is no official certification, there is no shortage of lunar rover rabbits attracting the attention of netizens with professional scientific content.
From time to time, it is sometimes time and professional, and many netizens guessed that Yutu may be operated by the staff of the National Bureau of Defence of Science and Technology. However, CCTV’s reply to the Defense Industry and Technology Bureau on this issue was “ This microblogging number is not a national defense science. Bureau's official microblog ."
It was confirmed through other channels that this unofficially certified microblog number “Rover Rider Rabbit†is a project jointly operated by Xinhua News Agency and Nutshell Network. It was a young girl who later made a voice for Jade Rabbit.
Nowadays, she "suddenly sleeps." She no longer appears and she no longer vocalizes.
So do the rabbits hope to return to Earth?
There is a question in knowing:
“Today I saw the rabbit’s Weibo. Suddenly I feel very uncomfortable. Although it is a detector, it’s still a bit difficult to accept..... I’d like to ask you the great gods. With China’s current space technology, can you bring back jade rabbits? Earth? If it can, but not bring back, is it because of costs? If not, where are the main technical difficulties?"
Netizen @ Flying Rabbit Answers:
“It is not necessary to bring it back nor to bring it back. The mission of the lunar rover is to inspect it. It is not a sampling return . There is no need to return. The rabbit is sleeping well on the moon, and it helps us to open up a site.â€
Okay, don't be sad. Chang'e III will soon have new companions:
If all goes well, China plans to send another lander in 2017 and bring the moon sample back to Earth.
The handheld addresser is used to program the address of the monitoring module offline. When in use, connect the two output wires of the handheld encoder to the communication bus terminal (terminal label 1, 2) of the monitoring module, turn on the black power switch on the right side upwards, and press "ten Add", [Subtract ten", [Add one place" and [Subtract one place" to program the address.
Hd Encoders,Twitch Encoder,Resolver Encoder,Incremental Rotary Encoders
Changchun Guangxing Sensing Technology Co.LTD , https://www.gx-encoder.com