麻豆中文字幕丨欧美一级免费在线观看丨国产成人无码av在线播放无广告丨国产第一毛片丨国产视频观看丨七妺福利精品导航大全丨国产亚洲精品自在久久vr丨国产成人在线看丨国产超碰人人模人人爽人人喊丨欧美色图激情小说丨欧美中文字幕在线播放丨老少交欧美另类丨色香蕉在线丨美女大黄网站丨蜜臀av性久久久久蜜臀aⅴ麻豆丨欧美亚洲国产精品久久蜜芽直播丨久久99日韩国产精品久久99丨亚洲黄色免费看丨极品少妇xxx丨国产美女极度色诱视频www

China's Chang'e-4 probe switches back to dormant mode

Source: Xinhua| 2019-02-13 16:42:11|Editor: Liangyu
Video PlayerClose

CHINA-CHANG'E-4-DORMANT MODE (CN)

Panoramic photo shows the lander of the Chang'e-4 probe. The lander and the rover of the Chang'e-4 probe have been switched to dormant mode for the lunar night after working stably during the past lunar day, the China National Space Administration (CNSA) announced Wednesday. (Xinhua/China National Space Administration)

BEIJING, Feb. 13 (Xinhua) -- The lander and the rover of the Chang'e-4 probe have been switched to dormant mode for the lunar night after working stably during the past lunar day, the China National Space Administration (CNSA) announced Wednesday.

The lander was switched to a dormant mode at 7:00 p.m. Monday as scheduled, and the rover, Yutu-2 (Jade Rabbit-2), at 8:00 p.m., said the CNSA.

According to China's Lunar and Deep Space Exploration Center, the rover will be woken up on Feb. 28 and the lander on March 1.

The CNSA said that the Chang'e-4 probe worked stably during its second lunar day. The payloads on board including low-frequency radio astronomical instrument, neutron radiation detector, infrared imaging spectrometer and neural atomic detector have been operating smoothly as scheduled.

During its second Lunar day, a camera installed on the rover Yutu-2 took 360-degree panoramic photos on the lander.

Meanwhile, the lunar rover Yutu-2 has driven 120 meters on the far side of the moon, breaking the record of 114.8 meters made by its predecessor, Yutu, China's first rover to leave a trace on the lunar surface in late 2013.

China's Chang'e-4 probe, launched on Dec. 8, landed on the Von Karman Crater in the South Pole-Aitken Basin on the far side of the moon on Jan. 3.

A lunar day equals 14 days on Earth, and a lunar night is the same length. The radioisotope heat source, a collaboration between Chinese and Russian scientists, will support the probe through the lunar night when the temperature falls.

The Chang'e-4 probe woke from its first lunar night on Jan. 31. According to the measurements of Chang'e-4, the temperature of the lunar surface dropped to as low as minus 190 degrees centigrade, colder than expected.

It is the first time Chinese scientists have received first-hand data about the temperatures on the surface of the moon during the lunar night.

Last Friday, the U.S. space agency NASA announced that its Lunar Reconnaissance Orbiter (LRO) acquired a shot on the Chang'e-4 landing site the day after it did so on Jan. 30.

In the picture, the lander and rover of the Chang'e-4 probe are nestled among craters on the floor of the Von Karman crater. Shadows cast by the lander and rover are visible.

KEY WORDS:
EXPLORE XINHUANET
010020070750000000000000011100001378186371