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BEIJING, Jan. 3 (Xinhua) – In addition to 12 dramatic minutes, the Chinese lunar probe "Chang E-4" made Thursday a soft landing on the crater of a volcano located on the other side of the moon.
The Chinese lunar probe "Chang-e-3" landed on the "Rainbow Bay" on the moon's side, a flat surface of the moon like the plains of northern China, while the probe landed "Chang-e-3" e-4 "in a rugged area like the high mountains and high hills of Sichuan Province, in southwestern China.
Chinese space experts have chosen the Von Kerman crater in the Etkin basin, at the South Pole, as the landing site of Zhang E-4, where the available surface for landing is equivalent to the price of the area available for Chang-e-3, as well as surrounded by mountains with peaks of 10 km.
"The Zhang E-4 probe has reached an almost vertical decline," said Wu. It's a daunting challenge considering the short time, difficulties and big risks that accompanied the landing . "
Wu clarified that the operation was fully automatic and without any interference from the ground control center, but that the relay satellite was transmitting images of the landing process.
"We chose to implement a vertical landing strategy to avoid the impact of mountains on the flight path," said Zhang He, executive director of the Chang-e-4 project of the China Academy of Space Technology.
"When the spacecraft began to land at about 2 km altitude, her cameras took pictures of the moon's surface so that she could identify big obstacles such as rocks or pits", said Wu Xueying, deputy chief designer of Chang-e-4. He also hiked 100 meters to reach the small obstacles and measure the slopes of the moon.
After completing the calculations, the probe found the safest and safest landing sites: the landing continued as the engine was stopped when it was two meters from the surface, then landed on four legs acting as shock absorbers.
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