The Chinese lunar Rover has survived the first night on the dark side of the moon
Source:Chinese spacecraft mission "Chang'e-4," in early January of this year for the first time in history, made a soft landing on the surface of the reverse side of the natural satellite of the Earth, survived the first lunar night, according to the portal Space.com citing the China national space administration (CNSA). Lunar Rover "WiTu-2" (literally "Jade rabbit 2"), and the lander "Chang'e-4" are in good shape after the first severe test of cold, the report said.
Since the Moon is in tidal capture (the period of revolution of the satellite around its axis matches the period of its revolution around the Earth, so one side of the moon constantly faces the Earth) day on the moon lasts much longer than on Earth. Day on the moon lasts 14 earth days, the same duration of the lunar night. After just a few days from the moment of landing spacecraft on the surface of the lunar crater Pocket came a moonlit night. In the end, both had within two weeks without sunlight while in hibernation. In the CNSA reported that "UTU-2" woke up on Wednesday this week at 20:39 Beijing time (15:39 MSK). Lander came out of hibernation 24 hours later.
the Chinese lunar lander "Chang'e-4" on the surface of the back side of the moon. The image obtained from the camera of the Chinese lunar Rover "WiTu-2"
The Chinese space Agency also added that the channel for communication and data transfer between the control center mission on Earth and devices operating on the reverse side of the satellite, completely stable. It's supported by a satellite repeater, Cuitzeo, located behind the Moon. Both spacecraft came out of hibernation on their own after the installed sensors have identified exposure to direct sunlight, descended into the crater of the Pocket that are part of the basin South pole — Aitken (the largest crater on the moon). All of the key scientific instruments the spacecraft is now operating normally, the report said. Currently, the Rover is approximately 18 metres North of the lander.
the Rover "WiTu-2" descended from the ladder of the lander "Chang'e-4" shortly after the historic landing on the opposite side of the moon January 3, 2019
"According to the measurements of the lander "Chang'e-4", temperature of the upper layer of the soil on the side of the moon lower than indicated in data obtained by the American mission "Apollo" on the surface of the proximal side. This is probably due to the difference of the composition of the soil on different sides of the moon. We need a more thorough analysis," — quoted Executive Director of the project "Chang'e-4" Zhen Khe news Agency "Xinhua".
Both devices are equipped with radioisotope heat sources. In addition, the lander has a variety of temperature sensors, allowing temperature at night. Information about the measurement results of the Chinese Corporation aerospace science and technology (CASC).
"According to information submitted to the lunar probe to Earth, the night temperature in January on the surface of the back side of the moon drops to minus 190 degrees Celsius", — the message reads CASC.
the Place of landing of spacecraft mission "Chang'e-4" photographed by orbiting spacecraft NASA's Lunar Reconnaissance Orbiter
Recall that the mission "Chang'e-4" was successfully launched from the Xichang launch site in southwestern China's Sichuan province on 8 December last year. The main task of the lander and Rover is to study the reverse side of the natural satellite of the Earth. Before the start of the moonlit nights module "Chang'e-4" carried out the first biological experiment on the back side of the moon. Together with the probe to the satellite were sent to a few biological samples. Before the change of day managed to grow one from seed cotton. The plant , when the satellite it was night.
To Discuss the progress of the Chinese mission "Chang'e-4" can be in our .
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