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Showing posts with label Chang'e-3 lunar probe. Show all posts
Showing posts with label Chang'e-3 lunar probe. Show all posts

Sunday, December 15, 2013

China's lunar probe Chang'e-3 landing on the Moon a success


China´s first attempt at lunar soft-landing succeeds CCTV News - CNTV English

China's first lunar rover separates from Chang'e-3 moon lander early December 15, 2013. Picture was taken from the screen of the Beijing Aerospace Control Center in Beijing, capital of China. Photo: Xinhua

Photographs of the Chang’e-3 probe (inset) and Yutu lunar rover taken by each other at the Bay of Rainbows on the surface of the moon on Sunday. Photos: IC

The Chang'e-3 probe and its moon rover separated before taking photos of each other on the moon's surface on Sunday, marking a "complete success" of the Chang'e-3 mission, Ma Xingrui, chief commander of the lunar program, announced on Sunday night.

The moon rover, Yutu, took photos with a panoramic camera at five points at a distance of 10 meters when moving around the probe, while the probe also took pictures of the rover with its landform camera and then sent them back to Earth, said Sun Zezhou, chief designer of the lunar probe.

The pictures of the moon's landscape and the probe and rover on it, carrying China's national flag, mark the country's first soft-landing on the surface of an extraterrestrial body.

Yutu, which traveled at 200 meters per hour, will start a three-month research mission on the moon, examining the moon's soil construction, landform and material composition, according to the State Administration of Science, Technology and Industry for National Defense.

Yutu was deployed from the probe and tracked on the moon's surface at around 4:45 am on Sunday, approximately seven and half hours after the successful soft-landing of the probe.

China became the third country to do so after the US and Soviet Union. The last such mission was made by the Soviet Union in 1976.

The probe touched down on an area named Sinus Iridum, or the Bay of Rainbows, as planned. The landing process started at 9 pm on Saturday and lasted for about 12 minutes, according to China Central Television's live broadcast.

Chang'e-3's landing is the second step of the three key stages of China's lunar program. The third step will involve bringing samples back to  Earth for closer analysis.

News of the landing quickly made an impact on China's hugely popular social media, topping the list of searched items, as many commented in the style of the famous Neil Armstrong remark, "one giant leap for mankind."

The successful soft-landing of Chang'e-3 attracted the world's attention, as some scientists compared China's interest in the moon to that of many other countries in exploiting resources in Antarctica, saying such scenarios depend "entirely on the business case," the AFP reported.

Jiao Weixin, a professor at the School of Earth and Space Sciences, Peking University, told the Global Times on Sunday that the lunar program mainly focuses on its scientific purpose rather than the economic purpose, which Western media reported.

Although the moon may have rich mineral and energy resources, such as helium-3, and China's moon research did include examining such resources, "it is still unrealistic for any country to profit from the moon's resources in the near future considering the technology and cost," he said. 

However, Jiao didn't rule out the possibility of developing moon resources in the future, which should be "many" years away.

During the online interview on the program's official Weibo account, Liu Jianzhong, a research fellow from the Institute of Geochemistry with the Chinese Academy of Sciences, told Net users that whoever is capable of developing the moon's resources first should reap the benefits.

 China's "Jade Rabbit" separates from lander

China's first moon rover, Yutu, or Jade Rabbit, separated from the lander early on Sunday, several hours after the Chang'e-3 probe soft-landed on the lunar surface.

The 140 kg six-wheeled rover touched the lunar surface at 4:35 am, leaving deep trace on the loose lunar soil. The process was recorded by the camera on the lander and the images were sent to the earth, according to the Beijing Aerospace Control Center.

After the separation, the rover and lander will take photos of each other and start their own scientific explorations.

Engineers made final checks of the environment of the landing site, the situation of the probe and the solar incidence angle late night on Saturday and sent signals of separation to Chang'e-3.

Yutu, atop the probe, extended its solar panel and started to drive slowly to the transfer mechanism at 3:10.

The transfer mechanism unlocked at 4:06 with one side reaching the moon's surface, allowing the rover to descend to the surface following a ladder mechanism.

Chang'e-3 landed on the moon's Sinus Iridum, or the Bay of Rainbows, at 9:11 pm Saturday, making China the third country in the world to carry out such a rover mission after the United States and former Soviet Union.

In ancient Chinese mythology, Yutu was the white pet rabbit of the lunar goddess Chang'e. The name for the rover was selected following an online poll that collected several million votes from people around the world.

The rover, 1.5 meters long with its two wings folded, 1 m in width and 1.1 m in height, is a highly efficient robot controlled by the command center from the earth. It will face challenges including temperature differences of more than 300 degrees Celsius on the moon.

Yutu will survey the moon's geological structure and surface substances and look for natural resources for three months, while the lander will conduct in-situ exploration at the landing site for one year. - Xinhua

Related post:
China launches probe and rover to moon 

Related Links:

Backgrounder: China's "triple jump" progress in lunar probes
Backgrounder: Timeline of China's lunar program
Special Report: China's lunar explorations
Graphics: Launch procedure of Chang'e-3 lunar probe
Commentary: Chang'e-3's soft landing marks China's hard success

BEIJING, Dec. 14 (Xinhua) -- The moon Saturday saw a rare new visitor -- lunar probe Chang'e-3 from China, the third country on earth which achieved a soft landing on it after theUnited Statesand the former Soviet Union.

The success also made China the first country that conducted a soft landing on Sinus Iridum, or the Bay of Rainbows, a lunar area that remains unstudied and silent for hundreds of millions of years, stamping new foot prints in the history of mankind's lunar exploration. Full story

China's Chang'e-3 lunar probe amazes world

BEIJING, Dec. 14 (Xinhua) -- China's Chang'e-3, which includes its first lunar rover named Yutu, or Jade Rabbit, has successfully soft landed on the Moon Saturday, fulfilling the long-awaited dream of moon landing of the Chinese nation.

Since the successful launching of Chang'e-3 mission early December, the Chang'e-3 lunar exploration program has been put in the spotlight. Now as Jade Rabbit has made its touchdown on the moon surface, the whole world again marvels at China's remarkable space capabilities and even extends their aspiration for space cooperation with China. Full story

Lunar mission: craft to conduct re-entry tests before 2015


BEIJING, March 14 (Xinhuanet) -- An experimental spacecraft will be launched before 2015 to conduct crucial re-entry tests on the capsule to be used in the Chang'e-5 lunar-sample mission, a leading space program official said.

Chang'e-5 is expected to be China's first lunar explorer to return to Earth. The mission will be carried out before 2020.Full story


BEIJING, July 14 (Xinhua) -- China's space probe Chang'e-2 has flew to an outer space about 50 million km from the Earth, marking a new height in the nation's deep space exploration, Chinese scientists said on Sunday.
The probe, which is now "in good conditions", reached the height at around 1 a.m. Sunday Beijing Time, the State Administration of Science, Technology and Industry for National Defence(SASTIND) said in a statement.Fullstory



BEIJING, Oct. 6 (Xinhua) -- A chief designer with China's second lunar probe project has said that the country's lunar pursuit, while lagging behind Russiaand the United States for more than 40 years, is still important because space exploration is part of the country's responsibility towards mankind.

"The most fundamental task for human beings' space exploration is to research on human origins and find a way for mankind to live and develop sustainably," said Qian Weiping, chief designer of the Chang'e-2 mission's tracking and control system.Full story


BEIJING, June 26 (Xinhua) -- A Chinese astronaut research and training official Wednesday called for international cooperation to promote the development of manned space technologies.

China has long been pushing for international cooperation in manned space program under the principles of mutual respect, equality and mutual benefit, as well as of transparency and opening, said Deng Yibing, director of China Astronaut Research and Training Center.Full story

Sunday, December 1, 2013

China will tonight launch a lunar probe to attempt ‘soft landing’


Chang´e-3 to send back new data for analysis CCTV News - CNTV English

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China will on Sunday night launch a lunar probe that will attempt to carry out the first “soft landing” on the Moon in almost four decades, underlining the rapidly growing capabilities of the country’s ambitious space programme.

The Chang’e-3 lunar probe, which will be launched from the Xichang centre in western China at 11 pm IST on Sunday night (1.30 am Monday morning local time), will carry a Moon rover that will survey the lunar surface and explore for natural resources.

Chinese officials have highlighted the launch as the most difficult objective yet of the space programme, as it involves carrying out the first “soft landing” on the Moon since the Soviet Union landed a probe in 1976.

Cen Zheng, the rocket system commander-in-chief of the mission, said on Saturday engineers had adopted new “technologies of high-precision guidance and control” and a first-of-its-kind transmission system for remote sensing.

The Chang’e-3 mission, if successful, will land on the moon in mid-December, following which the Jade Rabbit rover — or Yutu in Chinese, named after a popular Chinese mythological story about a rabbit that lives on the Moon — will spend three months exploring the surface.

Only the U.S. and the erstwhile Soviet Union have carried out soft landings, and no country has done so since 1976.

Officials said the Chang’e-3 probe is far more advanced than the Soviet mission as it is equipped with high-precision sensors to survey landforms at the landing sites and choose the best spot to land.

The mission marks another landmark for the ambitious Chinese space programme, which, earlier this year, launched the country’s fifth manned mission. 

China last year also achieved its first docking exercise in space with an orbiting laboratory module — a significant step in its plan to put into orbit its own space station by 2020.

Wu Zhijian, a spokesperson for the space programme, earlier this week described the lunar probe as “the most complicated and difficult task in China’s space exploration” history. The first Chang’e probe, in 2007, mapped the surface of the Moon and after a 16-month mission crash landed on the surface.

India and the European Space Agency have carried out similar “hard landings”. The unmanned Chandrayaan-1 was India’s first unmanned lunar probe. 

Announcing the launch earlier this week, officials were eager to downplay suggestions of a “space race” with India, with international attention on both countries’ programmes following India’s Mars probe launch.

Chinese State media devoted wide attention to the Mars probe, with the Global Times, a nationalist tabloid published by the People’s Daily, calling on China to double its efforts “in front of an India that is striving to catch up”.

Li Benzheng, the deputy commander-in-chief of the lunar programme, said China was “never in competition” with India or any country, and congratulated India on the Mars probe, which he described as “a great accomplishment”.




China to launch Chang'e-3 lunar probe

China will launch the Chang'e-3 lunar probe to the moon at 1:30 am Monday from Xichang Satellite Launch Center, the mission's launching headquarters said Saturday.

It will be the first time for China to send a spacecraft to soft land on the surface of an extraterrestrial body, where it will conduct surveys on the moon.

Facilities at the launching site are in good condition and preparations are going well, according to the headquarters.

The probe will be launched to orbit aboard an enhanced Long March-3B carrier which is more than three meters in diameter and 56.4 meters high.

The mission will be the 25th launch of the Long March-3B, which is the most powerful launch vehicle in the Long March fleet.

Engineers have adopted technologies of high-precision guidance and control, multiple narrow window launches, transmission system for remote sensing, and reduction of the rocket's deadweight, said Cen Zheng, rocket system commander-in-chief of the mission.

Chang'e-3 comprises a lander and a moon rover called "Yutu" (Jade Rabbit). The lunar probe will land on the moon in mid-December if everything goes according to plan.

Tasks for Yutu include surveying the moon's geological structure and surface substances, while looking for natural resources.

So far, only the United States and the former Soviet Union have soft-landed on the moon.

After entering lunar orbit, Chang'e-3 will go through six stages of deceleration to descend from 15 km above to the lunar surface.

The soft-landing processes of the US and former Soviet Union's unmanned spacecraft had no capacity to hover or avoid obstacles. Chang'e-3, on the other hand, can accurately survey landforms at the landing site and identify the safest spots on which to land.

In order to land quickly, the probe is equipped with high-precision, fast-response sensors to analyze its motion and surroundings. The variable thrust engine (completely designed and made by Chinese scientists) can generate up to 7,500 newtons of thrust. - Xinhua