Цюэцяо – CZ-4C – Сичан (XSLC) – 20.05.2018, 21:28 UTC

Автор che wi, 29.10.2016 14:30:51

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tnt22

ЦитироватьTammo Jan Dijkema‏ @tammojan 8 ч. назад

New image of lunar farside just recorded @radiotelescoop (@cgbassa and me) and @yl3ct. Earth is just outside image. Color correction not yet done. @bg2bhc


tnt22

ЦитироватьCees Bassa‏ @cgbassa 5 ч. назад

During today's @radiotelescoop observing session of the @bg2bhc #DSLWP-B lunar orbiter we (@tammojan and I) downloaded two new images. Showing the lunar far side, as well as Earth. These images have been slightly colour corrected. Originals at https://bit.ly/2yE1gQV .


tnt22

Цитироватьhaibaraemily‏ @haibaraemily1 30 нояб.

I guess you might want to know what does Queqiao (the relay satellite of Chang'e 4) look like? This is a 1:3 scale model of Queqiao satellite exhibited at China International Aerospace Exhibition, Zhuhai this year. You can see the beautiful umbrella-shaped antenna.




tnt22


Reader

На РККЭ объекты, подобные Цюэцяо, приказано называть ЭЛОИ - Элементы Лунной Орбитальной Инфраструктуры  :)

Феликс

ЦитироватьReader пишет:
На РККЭ объекты, подобные Цюэцяо, приказано называть ЭЛОИ - Элементы Лунной Орбитальной Инфраструктуры  :)
Почему не Меж-Орбитальные Радиотрансляционные Лунные Обьекты Космической Инфраструктуры?

Reader

ЦитироватьФеликс пишет:
ЦитироватьReader пишет:
На РККЭ объекты, подобные Цюэцяо, приказано называть ЭЛОИ - Элементы Лунной Орбитальной Инфраструктуры  :)  
Почему не Меж-Орбитальные Радиотрансляционные Лунные Обьекты Космической Инфраструктуры?
Машину времени не читали, видимо.

Старый

ЦитироватьФеликс пишет: 
Почему не Меж-Орбитальные Радиотрансляционные Лунные Обьекты Космической Инфраструктуры?
Без "Лунные". Просто МОРОКИ.
1. Ангара - единственная в мире новая РН которая хуже старой (с) Старый Ламер
2. Назначение Роскосмоса - не летать в космос а выкачивать из бюджета деньги
3. У Маска ракета длиннее и толще чем у Роскосмоса
4. Чем мрачнее реальность тем ярче бред (с) Старый Ламер

tnt22

http://www.xinhuanet.com/english/2019-01/06/c_137723875.htm
ЦитироватьChina Focus: Relay satellite Queqiao plays key role in exploring moon's far side
Source: Xinhua | 2019-01-06 17:12:19 | Editor: ZX
 
BEIJING, Jan. 6 (Xinhua) -- China's Chang'e-4 probe has started the exploration on the far side of the moon thanks to the relay satellite that provides a communication link with ground control.

The relay satellite, named Queqiao, meaning Magpie Bridge, after a Chinese legend, was launched on May 21, 2018, and became the first communication satellite operating in the halo orbit around the second Lagrangian (L2) point of the earth-moon system, nearly 500,000 km from the earth.

The maximum distance between the satellite and the Chang'e-4 probe on the far side of the moon is 79,000 km. The satellite processes data from the probe and transmits it to earth, said Sun Ji, a designer of the satellite from the China Academy of Space Technology.

The satellite can stay in its orbit for a long time due to its relatively low fuel consumption, as the earth's and moon's gravity balances its orbital motion, said Zhang Lihua, chief designer of the satellite.

While in orbit, it can "see" both the earth and the far side of the moon. From earth, the orbit looks like a halo on the moon, said Zhang.

The concept of deploying a relay satellite in the halo orbit was first put forward by U.S. space experts in the 1960s, but was realized by Chinese space engineers.

"We will let Queqiao work as long as possible. It could also provide communication for probes from other countries if they intend to explore the moon's far side within the lifetime of the satellite," said Ye Peijian, an academician of the Chinese Academy of Sciences and a senior space expert.

"And that will be a Chinese contribution made to the world," Ye said.

The relay satellite will also be used for scientific and technological experiments.

It has a low-frequency radio spectrometer, jointly developed by Dutch and Chinese scientists, to help astronomers "listen" to the deeper reaches of the cosmos.

It also carries a reflector developed by the Sun Yat-sen University, in south China's Guangdong Province, to conduct the world's longest laser-ranging test between the satellite and an observatory on the ground.

Researchers hope to use the cameras on the satellite to capture asteroids hitting the far side of the moon, said Sun Ji.

"It's extremely difficult, but we hope to try," Sun said.

To control the cost of the Chang'e-4 mission, the relay satellite was designed to be relatively small, weighing about 400 kg.

Chinese experts designed several antennas for it, including one shaped like an umbrella with a diameter of almost 5 meters.

"We learned from textile technologists and watchmakers in the development of the metal mesh and ribs on the antenna," Zhang said.

"It must endure temperature changes of more than 300 degrees centigrade. We conducted countless experiments for that."

His team had just 30 months to develop the satellite, putting them under tremendous pressure.

To promote public interest in space exploration, the China National Space Administration invited people to write down their wishes for lunar and space exploration, and the relay satellite carries the names of tens of thousands of participants and their messages.

tnt22

http://russian.news.cn/2019-01/16/c_137748438.htm
ЦитироватьКитай приветствует использование международным сообществом спутника-ретранслятора "Цюэцяо" для космических исследований
2019-01-16 14:21:29丨Russian.News.Cn

Пекин, 16 января /Синьхуа/ -- Китайский спутник-ретранслятор "Цюэцяо" /"Сорочий мост"/, который сейчас обеспечивает связь между севшим на обратной стороне Луны зондом "Чанъэ-4" и Землей, в последствии должен проработать еще от трех до пяти лет. Китай приветствует использование международным сообществом данного спутника для дальнейших космических исследований. Об этом заявил ответственный секретарь и официальный представитель Китайского национального космического управления /China National Space Administration, CNSA/ Ли Гопин.
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В интервью журналистам он отметил, что CNSA приветствует участие коллег из разных стран в последующей работе по реализации китайских программ исследования Луны и глубокого космоса в таких формах сотрудничества, как совместные научно-технические разработки, использование китайских космических аппаратов для вывода в космос собственных экспериментальных приборов, а также совместное проведение научных исследований.

В ближайшем будущем Китай приступит к реализации миссии по посадке на Южном полюсе Луны, тогда он будет готов предоставить международному сообществу возможность отправить на борту китайского орбитального аппарата и посадочного модуля приборы - общим весом по 10 кг на каждом, проинформировал Ли Гопин.

По его сообщению, CNSA в апреле 2015 года официально начало принимать заявки от международного сообщества на установку на борту китайских космических аппаратов экспериментальных приборов. Всего были получены заявки более чем от 10 стран, желающих размесить на китайских космических аппаратах около 20 приборов. В результате отбора было решено принять заявки Германии, Нидерландов, Швеции и Саудовской Аравии. Оборудование названных стран было размещено соответственно на посадочном модуле "Чанъэ-4", луноходе "Юйту-2", спутнике-ретрансляторе "Цюэцяо" и спутнике "Лунцзян-2". Китай планирует совместно с этими странами создать международную команду ученых, которая будет работать над использованием данных, полученных с помощью установленных на китайских аппаратах приборов, для проведения научных исследований.

В рамках миссии "Чанъэ-4", кроме иностранных приборов, также были выведены в космос девять научных приборов китайской разработки. CNSA намерено поделиться данными, полученными с помощью этих приборов, с космическими структурами, НИИ, а также исследователями-любителями из разных стран, заявил Ли Гопин.
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поц

#150
Манёвр удачный
ЦитироватьBG2BHC‏ @bg2bhc 2 ч.2 часа назад


DSLWP-B has successfully made a maneuver to reduce its perigee. The sat will end up with an impact to the moon in about August this year to avoid space junk.


tnt22

Цитировать Heino Falcke @hfalcke · 8 ч

Tonight the #NCLE radio astronomy antenna onboard #Change4 #moon relay satellite #Queqiao was fully switched on. All systems work. Antennas still stowed. We will perform first calibration measurements now. Congratulations @MarcWolt and team @RadRadioLab @isis_space @ASTRON_NL


tnt22

ЦитироватьAndrew Jones‏ @AJ_FI 1 ч. назад

The Queqiao relay satellite, which facilitates communications between Chang'e-4 spacecraft on the always-hidden lunar far side and Earth, can operate for around 10 years, up from initial planned lifetime of 5 years, chief designer Zhang Lihua says.

https://mp.weixin.qq.com/s/s7TRZPwjvwLQB-H0EkNIVA ...

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1 ч. назад

Queqiao, or 'Magpie Bridge', needs 80 grams for station-keeping manoeuvres and has nearly 50 kilograms of hydrazine left, according to the article.


1 ч. назад

Chang'e-7 will require a relay satellite, but perhaps with upgrades and new astronomy equipment. One idea would be to send Queqiao to check for hypothetical Trojan asteroids at the other Earth-Moon Lagrange points (L4, L5) using the spacecraft's imager

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tnt22

ЦитироватьDaniel Estévez‏ @ea4gpz 6 мая

New blog post: DSLWP-B deorbit and mission end. The collision of DSLWP-B with the Moon is expected on July 31, putting an end to the mission.

https://destevez.net/2019/05/dslwp-b-deorbit-and-mission-end/ ...


tnt22

ЦитироватьDaniel Estévez‏ @ea4gpz 9 мая

New blog post: DSLWP-B lunar impact prediction. Calculation of the future impact point of DSLWP-B on the surface of the Moon. It falls in the far side of the Moon, so not observable from Earth.

https://destevez.net/2019/05/dslwp-b-lunar-impact-prediction/ ...


tnt22

ЦитироватьAndrew Jones‏ @AJ_FI 5 мин. назад

Cool new pics of the Moon & Earth from the student camera on the Longjiang-2/DSLWP-B microsatellite in elliptical lunar orbit. (Taken on June 3, so before the Moon 'became part of Mars', or whatever is going on rn...). Info: https://destevez.net/2019/06/report-for-dslwp-b-june-imaging/ ...







5 мин. назад

And here's a gif made with corrected images by @bg2bhc

https://video.twimg.com/tweet_video/D8eyL38XoAARmbe.mp4

tnt22

ЦитироватьAndrew Jones‏ @AJ_FI 3 ч. назад

Fantastic! This is yesterday's solar eclipse as seen from lunar orbit by a small camera on a tiny 45 kg satellite.




3 ч. назад

Another eclipse image from the DSLWP-B satellite, launched with the Queqiao relay satellite for the Chang'e-4 mission in May 2018. The satellite will soon impact the Moon to prevent possible future collisions in lunar orbit.




3 ч. назад

Another spectacular image of the #SolarEclipse from lunar orbit from the DSLWP-B microsatellite. #Eclipse2019




Tammo Jan Dijkema‏ @tammojan 3 ч. назад

В ответ @AJ_FI @radiotelescoop и еще 3

Wow, we're getting Earthrise + eclipse! Unfortunately some missing chunks, so not sure we'll finish this image today (window ends at 8 UTC).




Andrew Jones‏ @AJ_FI 2 ч. назад

Wow. This an #Earthrise image also capturing the shadow cast by the July 2 total solar eclipse.




Tammo Jan Dijkema‏ @tammojan 1 ч. назад

В ответ @AJ_FI @bg2bhc и еще 3

Here's the color-corrected version of the Earthrise image featuring the solar eclipse shadow. Color-corrected by @bg2bhc.


tnt22

:(
Цитировать Cees Bassa‏ @cgbassa 8 ч. назад
There is a new crater on the Moon... We are already 5 minutes past the moment DSLWP-B would've appeared from behind the Moon if it had not crashed. The fact that we are no longer receiving signals means it has impacted the lunar surface. RIP DSLWP-B.



tnt22

Цитировать Jonathan McDowell‏ Подлинная учетная запись @planet4589 23 мин. назад
The Chinese Longjiang-2 (DSLWP-B) lunar orbiting spacecraft completed its mission on Jul 31 at about 1420 UTC, in a planned inpact on the lunar surface.


tnt22

http://www.xinhuanet.com/english/2019-08/02/c_138278528.htm
ЦитироватьChina's micro lunar orbiter crashes into Moon under control
Source: Xinhua | 2019-08-02 16:28:11 | Editor: huaxia

BEIJING, Aug. 2 (Xinhua) -- China's micro lunar orbiter Longjiang-2 has crashed into the Moon under ground control after it completed its mission, according to the Lunar Exploration and Space Program Center of the China National Space Administration.

The micro satellite crashed into a predetermined area on the far side of the Moon at 10:20 p.m. on July 31 (Beijing Time), the center said Friday.

Weighing 47 kg, Longjiang-2 was sent into space on May 21, 2018, together with the Chang'e-4 lunar probe's relay satellite "Queqiao," and entered the lunar orbit four days later. It operated in orbit for 437 days, exceeding its one-year designed lifespan.

The development of the micro lunar orbiter explores a new low-cost mode of deep space exploration, said the center.

The micro satellite carried an ultra-long-wave detector, developed by the National Space Science Center of the Chinese Academy of Sciences, aiming to conduct radio astronomical observation and study solar radiation.

As a part of the international cooperation behind China's Chang'e-4 mission, Longjiang-2 also carried an optical camera developed by the King Abdulaziz City for Science and Technology of Saudi Arabia. The camera has captured 30 high-definition images of the Moon.

The Lunar Exploration and Space Program Center said it was an important space cooperation achievement for countries participating in the Belt and Road Initiative, and also ushered in more space cooperation between China and Saudi Arabia.

The program also pushed forward non-governmental cooperation between the satellite's developers from the Harbin Institute of Technology in northeast China's Heilongjiang Province and research teams in countries such as Japan, Germany and the Netherlands.