China's lunar lander Chang'e 4 may have made its first attempt to land on the dark side of the moon between Tuesday and Thursday, after entering a planned orbit on Sunday morning.
The Chinese Space Agency said the Beijing Control Center would choose a suitable time to land, but the Smithsonian Institution, the American Museum and Research Center Group, reported that the ship is expected to land at the landing of the ship from January 1 to January 3 Landing by Kármán-Kraters
The lunar-land driver was launched on December 8 at the Xichang Satellite Launch Center in southern China on a long March 3B rocket and entered lunar orbit four days later.
The other side of the moon ̵
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A soft landing on the other hand is a challenge, as any direct communication between the rover and the Earth is blocked by the other hemisphere.
To solve this problem, China launched a relay satellite Queqiao (or Magpie Bridge) between Earth and Moon. Queqiao is about 400,000 km from Earth and will relay signals to the Moon Lander and the Chang'an 4 Rover.
According to the Chinese National Space Agency (CNSA), the Beijing Ground Control has twice adjusted the orbit of the probe and tested the communication link between the probe and the relay satellite Queqiao. For the landing, the imaging tools and the rangefinders of the Moon Rovers were tested.
Chang & # 39; s 4's scientific tasks include astronomical observation using low-frequency radio, surveying terrain and landforms, capturing the mineral composition and surface structure of the moon. CNSA stated that it was measuring neutrons and neutrons to build an understanding of the environment on the other side of the moon.
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The launch of Chang's # 39; The Lander and Rover of 4 completed the second phase of the Chinese Moon Research Program (CLEP), one of 16 key technologies identified by the Chinese government.
China will launch a reusable probe called Chang's 5 by 2020, in the third and final phase of the plan. Chang'e 5 will include a lunar landing craft and a rover that, according to CLEP, could return to Earth after sampling and surveying on the planet Earth.
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Before Chang's 4 came Yutu, the moon-rover of Chang # 3, the landed on the moon in December 2013. But Yutu (or Jade Rabbit) did not move there about 40 days after landing due to a mechanical problem.
"The design of the Chang & # 39; e 4-Mondrovers has been improved on the basis of the previous, so it could work on the moon for at least a few years," said Wu Weiren's chief designer, said in August.