dimanche 3 février 2019

China's Chang'e-4 Probe Wakes Up after First Lunar Night













CLEP - China Lunar Exploration Program logo.

Feb. 3, 2019

The rover and the lander of the Chang'e-4 probe have been awakened by sunlight after a long "sleep" during the first extremely cold night on the moon, the China National Space Administration (CNSA) announced on Thursday.

The lander woke up at 8:39 p.m. Wednesday, and the rover, Yutu-2 (Jade Rabbit-2), awoke at about 8:00 p.m. Tuesday, surviving their first lunar night after making the first-ever soft landing on the far side of the moon, said CNSA.

Chang'e-4 Lunar Lander. Image Credits: CNSA/CLEP

China's Chang'e-4 probe, launched on Dec. 8 in 2018, 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 Chang'e-4 probe switched to a dormant mode during the lunar night due to the lack of solar power.

Yutu-2 Lunar Rover. Image Credits: CNSA/CLEP

Both the lander and the rover ended the dormant mode automatically according to the elevation angle of the sunlight. And the key instruments on the probe have started to work.


Image above: Chang'e 4 lander-rover relayed back by Queqiao lunar satellite (Magpie Bridge).Image Credits: CASC/CNSA.

Currently, the rover is located about 18 meters northwest of the lander. Communication and data transmission between ground control and the probe via the relay satellite Queqiao (Magpie Bridge) are stable, said CNSA.

Related article:

China's Yutu-2 rover Enters Standby Mode for 'Noon Nap' as Chang'e 4 Tests Continue
https://orbiterchspacenews.blogspot.com/2019/01/chinas-yutu-2-rover-enters-standby-mode.html

For more information about China Aerospace Science and Technology Corporation (CASC), visit: http://english.spacechina.com/n16421/index.html

For more information about China National Space Administration (CNSA), visit: http://www.cnsa.gov.cn/

Images (mentioned), Text, Credits: CASC/CNSA/China Space News.

Best regards, Orbiter.ch