"Чанъэ-4" (Chang'e-4), посадочный аппарат и луноход – CZ-3B – Сичан (XSLC) – 07.12.2018, 18:24 UTC

Автор che wi, 22.04.2017 19:53:16

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tnt22

ЦитироватьСтарый пишет:
Они имели в виду "в упор".
Я не знаю, что они имели ввиду - переводил as is, но более поздние твиты других организаций более точны в формулировках (например, https://m.weibo.cn/detail/4324359328042309)

tnt22

http://www.xinhuanet.com/english/2019-01/03/c_137716998.htm
ЦитироватьChina's Chang'e-4 probe soft-lands on moon's far side
Source: Xinhua | 2019-01-03 13:50:52 | Editor: Yang Yi


Photo provided by the China National Space Administration on Jan. 3, 2019 shows the first image of the moon's far side taken by China's Chang'e-4 probe. China's Chang'e-4 probe touched down on the far side of the moon Thursday, becoming the first spacecraft soft-landing on the moon's uncharted side never visible from Earth. The probe, comprising a lander and a rover, landed at the preselected landing area at 177.6 degrees east longitude and 45.5 degrees south latitude on the far side of the moon at 10:26 a.m. Beijing Time (0226 GMT), the China National Space Administration announced. (Xinhua)

BEIJING, Jan. 3 (Xinhua) -- China's Chang'e-4 probe touched down on the far side of the moon Thursday, becoming the first spacecraft soft-landing on the moon's uncharted side that is never visible from Earth.

The probe comprised of a lander and a rover, touched down at the preselected landing area at 177.6 degrees east longitude and 45.5 degrees south latitude on the far side of the moon at 10:26 a.m. (Beijing Time), the China National Space Administration (CNSA) announced.

With the communication assistance of the relay satellite Queqiao, meaning Magpie Bridge, the probe sent back the first-ever close-up photograph of the moon's far side, opening a new chapter in lunar exploration.

After the Beijing Aerospace Control Center sent an order at 10:15 a.m., the Chang'e-4 probe, launched on Dec. 8, 2018, began to descend from 15 km above the moon with a variable thrust engine being ignited, said CNSA.

The Chang'e-4's relative velocity to the moon was lowered from 1.7 km per second to close to zero, and the probe's attitude was adjusted at about 6 to 8 km above the lunar surface.

At 100 meters up, the probe hovered to identify obstacles and measured the slopes on the surface. After avoiding the obstacles, it selected a relatively flat area and descended vertically and slowly.

Then the probe landed in the Von Karman Crater in the South Pole-Aitken Basin.

During the descending process, a camera on the probe took photos of the landing area.  

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tnt22

http://www.xinhuanet.com/english/2019-01/03/c_137717022.htm
ЦитироватьBreathtaking 12 minutes for Chang'e-4's landing
Source: Xinhua | 2019-01-03 14:05:57 | Editor: zh

BEIJING, Jan. 3 (Xinhua) -- Over about 12 dramatic minutes, China's Chang'e-4 probe descended and softly touched down on a crater on the far side of the moon on Thursday.

Wu Weiren, chief designer of China's lunar exploration program, said Chang'e-3 landed on the Sinus Iridum, or the Bay of Rainbows, on the moon's near side, which is as flat as the north China plain, while the landing site of Chang'e-4 is as rugged as the high mountains and lofty hills of southwest China's Sichuan Province.

Chinese space experts chose the Von Karman Crater in the South Pole-Aitken Basin as the landing site of Chang'e-4. The area available for the landing is only one eighth of that for Chang'e-3, and is surrounded by mountains as high as 10 km.

Unlike the parabolic curve of Chang'e-3's descent trajectory, Chang'e-4 made an almost vertical landing, said Wu.

"It was a great challenge with the short time, high difficulty and risks," Wu said.

The whole process was automatic with no intervention from ground control, but the relay satellite transmitted images of the landing process back to Earth, he said.

"We chose a vertical descent strategy to avoid the influence of the mountains on the flight track," said Zhang He, executive director of the Chang'e-4 probe project, from the China Academy of Space Technology.

Li Fei, one of the designers of the lander, said when the process began, an engine was ignited to lower the craft's relative velocity from 1.7 km per second to close to zero, and the probe's attitude was adjusted to face the moon and descend vertically.

When it descended to an altitude of about 2 km, its cameras took pictures of the lunar surface so the probe could identify large obstacles such as rocks or craters, said Wu Xueying, deputy chief designer of the Chang'e-4 probe.

At 100 meters above the surface, it hovered to identify smaller obstacles and measure the slopes on the lunar surface, Wu said.

After calculation, the probe found the safest site, and continued its descent. When it was 2 meters above the surface, the engine stopped, and the spacecraft landed with four legs cushioning against the shock.

tnt22

http://russian.news.cn/2019-01/03/c_137717077.htm
ЦитироватьКитайский аппарат "Чанъэ-4" совершил успешную мягкую посадку на обратной стороне Луны
2019-01-03 14:25:53丨Russian.News.Cn

Пекин, 3 января /Синьхуа/ -- Китайский лунный зонд "Чанъэ-4" в четверг успешно прилунился на обратной стороне Луны, став первым космическим аппаратом, совершившим в истории человечества мягкую посадку на стороне Луны, которая не видна с Земли.

"Чанъэ-4", который состоит из посадочного аппарата и лунохода, совершил посадку в 10:26 по пекинскому времени в предназначенном районе на поверхности Луны в точке с координатами 177,6 градуса восточной долготы и 45,5 градуса южной широты.

tnt22

ЦитироватьChina's Chang'e-4 makes historic landing on Moon's far side

CGTN

Опубликовано: 2 янв. 2019 г.

China's Chang'e-4 probe successfully landed on the far side of the Moon on January 3, 2019. This is the first ever soft-landing on this uncharted area. The probe also sent the world's first close shot of the Moon's far side through the Queqiao (Magpie Bridge) relay satellite, which is operating in the halo orbit around the second Lagrangian (L2) point of the Earth-Moon system.
https://www.youtube.com/watch?v=3reQGq3yX8Ahttps://www.youtube.com/watch?v=3reQGq3yX8A (0:55)

sol

Ох стремное место, повезло, что не перекосило (судя по фотке - ямы там кругом).
Массаракш!

Жизнь - это падение в пропасть неизвестной глубины и заполненную туманом.

tnt22


tnt22


pkl

Ну что же, Китай вышел в лидеры изучения Луны, это факт. Молодцы, больше сказать нечего!

Только что посмотрел новости. Про посадку на Луну упомянули в конце, сквозь зубы и не удержались, ляпнули таки, что с помощью российских специалистов! :evil:  Прямо напомнило, как освещали высадку американцев на Луну.
Вообще, исследовать солнечную систему автоматами - это примерно то же самое, что посылать робота вместо себя в фитнес, качаться.Зомби. Просто Зомби (с)
Многоразовость - это бяка (с) Дмитрий Инфан

hlynin

Но вскорости мы на Луну полетим,-
И что нам с Америкой драться:
Левую - нам, правую - им,
А остальное - китайцам.

Похоже, Фарсайд придётся признать китайским

benderr

Цитироватьtnt22 пишет:
Впервые созданный человеком автоматический зонд сфотографировал обратную сторону Луны, раскрывая её древние тайны.
чинайцев поздравляю,но на фото песка я невижу ни тайны,ни её разгадки.

ну развечто цвет - не черно\белый как мериканцы фотали...
11-18
сначала,ущербные,
ПОЧИНИТЕ ГРЕБАНЫЕ ДОРОГИ!!!
потом,
если сможете
-летайте хоть к Кассиопее.
ПАЗ-срамота России.

ХВ.

Поздравляю китайцев и всех причастных к космонавтике !

Молодцы!!!

Ландшафт по сравнению со снимками Луны-9 более "мягкий", нет открытых камней. Всё припорошено лунной пылью. И такое впечатление, что поверхность более благоприятная для прилунения, чем место прилунения Луны-9.

ХВ.

Когда поедет Луноход, посмотрим, какой толщины слой пыли.


Agasfer

Впервые на обратную сторону! Молодцы китайцы!
А что мы?!
Я так понимаю батуты еще не построили....

axxenm

Более качественная версия первого снимка на поверхности обратной стороны Луны.
Что бы лучше рассмотреть надо открыть фото в отдельной вкладке.
Очень интересен разворошенный грунт внизу слева от тени.
роскосмос - сборище ворюг и бюрократов
одноразовый Ф9 - лучшая в мире ракета для вывода на ГПО.
ФХ бесперспективная связка дров.
КК Союз - лучший на долгие годы вперед.
Бочки стс-100,крю дрэгон,педерация,орион -
убогие бюрократические выкидыши

ХВ.

Кто в курсе дела: какая в точке посадки высота Солнца над горизонтом?

ХВ.

Картинка очень красивая. Но, по-моему, в Роскосмосе могут лучше нарисовать.

Diy

ЦитироватьAgasfer пишет:
А что мы?!
Видимо у нас все силы бросили на Экзомарс, как приоритет. Ну может в этом логика и есть, всё таки Луна у нас исторически более-менее, а вот с Марсом напряги.
«Кто виноват, что им светят два солнца?..»

tnt22

http://www.xinhuanet.com/english/2019-01/03/c_137717410.htm
ЦитироватьChina Focus: Chang'e-4 lands on largest crater in solar system
Source: Xinhua | 2019-01-03 17:52:04 | Editor: Liangyu

By Xinhua writers Quan Xiaoshu, Yu Fei

BEIJING, Jan. 3 (Xinhua) -- China's Chang'e-4 lunar probe has made the first-ever soft landing on the far side of the moon. Experts believe that the precise landing will help prepare the country for its following lunar exploration and future expeditions to other planets.

The probe, comprising a lander and a rover, landed at the preselected landing area at 177.6 degrees east longitude and 45.5 degrees south latitude on the far side of the moon at 10:26 a.m. Beijing Time, the China National Space Administration announced.

The landing area is the Von Karman Crater, named after a Hungarian-American mathematician, aerospace engineer and physicist, within the Aitken Basin. The area was intentionally sel ected after much consideration.

"When discussing the Chang'e-4 mission, we thought we should attach more creativity and functions to it, enabling it to do more challenging things," said Wu Weiren, chief designer of China's lunar probe program.

The far side of the moon was not the only first at first. Some experts even considered landing on other celestial bodies, but it would have required great changes made for the probe.
Спойлер
As Chang'e-4 began as a backup for Chang'e-3, many of their components and parts were designed and manufactured together, which allowed little room for changes, according to Sun Zezhou, chief designer of the Chang'e-4 probe, from China Academy of Space Technology.

Since the moon's revolution cycle is the same as its rotation cycle, the same side always faces the earth. The other face, most of which cannot be seen from Earth, is called the far side or dark side because most of it is uncharted.

"The rugged terrain of the moon's far side has made the landing much more risky than on its near side. However, more accurate landing technology is needed in the future," Sun said.

"For example, if we want to send detectors to the moon's bumpy polar regions and descend them on a relatively small area with permanent sunshine, it will demand very high landing precision," he explained.

"If we want to build a scientific research station on the moon, we will need to land multiple probes within the same area so that they can be assembled easily into a complex, which requires even greater landing accuracy," he said.

"So solving the challenges of the Chang'e-4 mission can lay the foundation for the following lunar exploration and future landing on other planets," he noted. "We hope that we will have the capacity to get to the whole moon and even the whole solar system in the future to support our deep space scientific explorations."

After the far side of the moon is determined as the destination, the specific landing area is narrowed by various restrictions.

Chang'e-3, launched in 2013, is the first Chinese spacecraft to soft-land on and explore an extraterrestrial object. Its thermal control system and solar wings are designed in line with the sunshine conditions at its landing area, Sinus Iridum or the Bay of Rainbows, at around 45 degrees north latitude. With almost the same design, Chang'e-4 is therefore preferred to land on an area between 40 and 50 degrees in latitude, Sun said.

After deciding the latitude, experts went on to consider the longitude. "To set up the communication link between the earth and the moon's far side, the relay satellite 'Queqiao' was launched in May and is now running on a halo orbit around the second Lagrangian point of the earth-moon system. It could only cover an area between dozens of degrees in longitude away from the central point of the far side for all-time communications," Sun said.

"And we don't want the elevation angle too small in case signals are hindered by surrounding mountains when the probe communicates with the relay satellite," he added.

Within the circled latitude and longitude, scientists pinned their eyes on the Aitken Basin, the largest, deepest and oldest crater in the solar system. It may contain the earliest information about the moon, for example whether it once had water. Exploration in this area will provide firsthand data and clues for the evolution of the moon, earth and solar system.

About 2,500 kilometers in diameter and 13 kilometers in depth, the Aitken Basin has a small crater, Von Karman, inside it. The latter, 180 kilometers in diameter, is relatively flat in its bottom, making it the best choice for landing.

About 13 degrees in longitude away from Von Karman, there is Chretien Crater, a perfect alternative landing area. If Chang'e-4 fails to touch the surface of Von Karman on the first day, it could land on the alternative area on the second day.

Shen Zhenrong, a designer of the Chang'e-4 probe, believes the mission will be a contribution for the whole world. "Although we don't know what Chang'e-4 will discover yet, the exploration is highly possible to influence generations of people."
[свернуть]

http://www.xinhuanet.com/english/2019-01/03/c_137717445.htm
ЦитироватьChina's Chang'e-4 probe makes historic landing on moon's far side
Source: Xinhua | 2019-01-03 18:42:13 | Editor: Lu Hui

BEIJING, Jan. 3 (Xinhua) -- China's Chang'e-4 probe touched down on the far side of the moon Thursday, becoming the first spacecraft to make a soft-landing on the moon's uncharted side, which is never visible from Earth.

The probe, comprised of a lander and a rover, touched down at the preselected landing area at 177.6 degrees east longitude and 45.5 degrees south latitude on the far side of the moon at 10:26 a.m. (Beijing Time), the China National Space Administration (CNSA) announced.

With the communication assistance of the relay satellite Queqiao (Magpie Bridge) the probe sent back the first-ever close-up photograph of the moon's far side, opening a new chapter in lunar exploration.

After the Beijing Aerospace Control Center sent an order at 10:15 a.m., the Chang'e-4 probe, launched on Dec. 8, 2018, began to descend from 15 km above the moon with a variable thrust engine being ignited, according to CNSA.

The Chang'e-4's relative velocity to the moon was lowered from 1.7 km per second to close to zero, and the probe's attitude was adjusted at about 6 to 8 km above the lunar surface.

At 100 meters up, the probe hovered to identify obstacles and measured the slopes on the surface. After avoiding the obstacles, it sel ected a relatively flat area and descended vertically and slowly.

The probe then landed in the Von Karman Crater in the South Pole-Aitken Basin.
Спойлер
"It's an important milestone for China's space exploration," said Wu Weiren, chief designer of China's lunar exploration program.

"It is a perfect display of human intelligence," said Jia Yang, deputy chief designer of the Chang'e-4 probe, from the China Academy of Space Technology (CAST).

"Landing on the far side of the moon is more risky than landing on the near side. The rugged terrain on the far side has raised many problems," said Sun Zezhou, chief designer of Chang'e-4 probe, from CAST.

"But solving those problems might help lay the foundation for future space exploration. High-precision landing is a necessity for further exploring the moon and asteroids. We hope to be able to reach the whole moon and even the whole solar system," Sun said.

The moon is tidally locked to Earth, rotating at the same rate that it orbits the planet. Therefore, only one side of the moon is seen from Earth, leaving the far side a mystery before the age of spacecraft.

Many lunar orbiters have shown the moon's two sides are very different: the near side is relatively flat, while the far side is thickly dotted with impact craters of different sizes.

Scientists believe that the lunar crust on the far side is much thicker than the near side. However, the reality is still a mystery, and only on site exploration will reveal the truth.

"The far side of the moon has unique features never before explored on site," said Zou Yongliao, director of the lunar and deep space exploration division of the Chinese Academy of Sciences (CAS).

"The exploration of this virgin land by Chang'e-4 might bring breakthrough findings."

The probe will conduct low-frequency radio astronomical observation, survey the terrain and landforms, detect the mineral composition and shallow lunar surface structure and measure the neutron radiation and neutral atoms to study the environment on the far side of the moon, according to CNSA.

For astronomers, the far side of the moon is a place of ideal tranquility, as the body of the moon shields against radio interference fr om Earth. Fr om there, they can study the origins and evolution of stars and galaxies, peering into the dawn of the universe.

Chang'e-4's low-frequency radio astronomical observation on the moon's far side will fill many gaps in astronomical observation.

The probe also took six live species - cotton, rapeseed, potato, arabidopsis, fruit fly and yeast - to the lifeless environment to form a mini biosphere, which is expected to produce the first flower on the moon.

Chinese space engineers also plan to measure temperatures on the surface of the moon day and night.

The Chang'e-4 mission, including the probe, the relay satellite Queqiao and a micro satellite orbiting the moon, is equipped with four payloads developed through international cooperation, providing more opportunities to the world's scientists and combining human expertise in space exploration.

Johan Koehler, head of Solar System Science and Space Situational Awareness, Swedish National Space Agency, said the exploration of the far side of the moon was a great achievement by China. "We are very happy to be a part of it."

Named after Chinese moon goddess "Chang'e," China's lunar exploration program, which began in 2004, includes orbiting and landing on the moon, and bringing samples back to Earth.

"Exploring the far side of the moon is one contribution China is making to the world. Although we still don't know what we might find, this exploration might influence several generations," said Shen Zhenrong, a designer of the lunar rover.

Wu Weiren said: "Exploring the unknown is human nature. The moon is a mysterious world to us. We have a responsibility to explore and to understand it. Exploration of the moon will also deepen our understanding of Earth and ourselves."
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