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China Preps for the launch of historical missions to the moon's distant side on Friday

China will be launched to launch the first ever surface mission to the moon's long side. The Robot Chang 4…

China will be launched to launch the first ever surface mission to the moon’s long side.

The Robot Chang 4 task is scheduled to start on a long March 3B rocket Friday, December 7th, 1:30 AM EST (1830 GMT, 2:30 AM, December 8, local Chinese time).

If everything goes according to plan, Chang 4’s lander-rover duo will move into the moon’s southern Polish Aitken Basin. After a 27-day flight, study both the surface and the underside of this region. [China’s Moon Missions Explained (Infographic)]

Both landlords and rovers were designed as backups for China’s successful Chang 3 mission, which set a lander and a robber named Yutu down on the moon in December 201


As an introduction to Chang & # 39; e 4, China launched Queqiao relay satellite last May. Queqiao is now located on the Earth’s L2 Lagrange point – a space where spacecraft can handle landscreen communications and lander rover assignment on the other side.

China’s Yutu Moon Rover, photographed on the moon’s surface by Chang 3 Lander on December 16, 2013. Changes the 4 mission to the father of the moon, which is scheduled to start it December 7, 2018, was designed as a backup for Chang 3.

Credit: CASC / China Department of Defense

Chang 4 is expected to migrate into the Von Kármán crater, within the SPA basin.

In a study published last month, Yingzhuo Jia, the University of Chinese Academy of Sciences, and colleagues set up the mission’s head of scientific goals. (Jia is also with the National Space Science Key Laboratory, the National Space Science Center of the Chinese Academy of Sciences.)

The mission, Jia and members wrote, aims to complete:

  • A low-frequency radio astronomical study on the surface of the moon;
  • A Basic Study Survey of the Moon’s Long Page in the Roving Area
  • Topographic and Mineralogical Composition Studies of Diversity within the Rover Patrol Area.

Astronomical study is particularly exciting. The long side of the moon is always away from the ground, so it is free of interference from our planet’s ionosphere, human radio frequencies and auroral radiation noise. Solar energy emissions are also blocked during the month of the month.

“Therefore, many aspects have been thought of as the best place for the radio frequency astronomical observation of the low frequency,” the researchers wrote in the recent newspaper.

The paper also describes the eight scientific payrolls that the mission gave.

An artist’s illustration of China’s Queqiao Relay Satellite, which will relate data between soil controls and China’s Changing 4 lander-rover pairs on the moon’s long side. Queqiao was launched in May 2018; Chang 4 duo takes off December 7th.

Credit: CNSA

Chang 4 countries carry the Landscape Camera (LCAM), Terrain Camera (TCAM), Low Frequency Spectrometer (LFS), and Lunar Lander Neutrons and Dosimetry (LND), which was provided by Germany. The rover also has four instruments: The Panoramic Camera (PCAM), Lunar Penetrating Radar (LPR), Visible and Network Infra-red Imaging Spectrometer (VNIS) and Advanced Small Analyzer for Neutrals (ASAN), provided by Sweden.

LFS was newly developed for Chang’s 4 countries; The other domestic Chinese payloads are inherited instruments from Chang 3, the researchers wrote.

The Queqiao relay satellite also has an instrument called the Dutch-China Low-Frequency Explorer (NCLE). NCLE and the landlord’s LFS will conduct common low-frequency radio astronomical observations. [Moon Master: An Easy Quiz for Lunatics]

The LPR instrument is likely to be able to detect the substrate structure of the robot patrol route and to detect the thickness and structure of the Moon Rule. The device is a nanosecond pulse radar with bistatic antennas.

It works like this: An ultra wide band nanosecond pulse is produced by a transmitter and then sent via the transmitter antenna down to the moon surface. The echo signal from the underground target is received by the receiving antenna, amplified in the receiver and then reset as a data record.

According to a story earlier this year by China’s state Xinhua news agency, Chang 4 will also wear a tin containing seeds of potatoes and arabidopsis, a small flowering plant related to cabbage and mustard. It can also order silk mask eggs.

The experiment “Lunar mini biosphere” was designed by 28 Chinese universities, led by southwest China’s Chongqing University. The cylindrical tin, made of special aluminum alloy material, weighs approximately 6.6 kg. [19659000] A view of the Moon’s southern pol-Aitken basin. “/>

A view of the Moon’s southern Pol-Aitken basin.

Therefore, studying the material in the region can help reveal the composition of the crust and even the mantle of the moon, the researchers wrote.

China’s next moon’s son, Chang 5, is designed to get selected samples from the moon back to earth. It is based on a progression of Chinese moon explorer: Chang 1 and Chang 2 orbits 2007 and 2010, Chang 3 in December 2013 and Chang 5 T1, which launched a test capsule on a one-month trip in October 2014. The capsule will safely fall back to earth eight days after lifting.

Leonard David is the author of “Mars: Our Future on the Red Planet”, published by National Geographic. The book is a companion to the National Geographic Channel series “Mars”. David Long has been writing on the space industry for more than five decades. Follow us @Spacedotcom Facebook or Google+. This version of the story published on

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