Chandrayaan 2 -- GSLV Mk.III -- Шрихарикота -- 22.07.2019, 09:13 UTC

[Старый]

Судя по всему это завод твёрдого топлива и вероятно стенд для испытания РДТТ. 

[Старый]

sas написал:
Люди, а вот прям рядом с космодромом, откуда пнули сабж, есть удивительная поляна:
 https://www.google.ru/maps/@13.7550831,80.1912797,765m/data=!3m1!1e3?hl=ru
Напомнила она мне пару-тройку мест:
 https://www.google.ru/maps/@56.2472194,38.323146,875m/data=!3m1!1e3?hl=ru  под С-Посадом (ну там учебка)
 https://yandex.ru/maps/-/CGSmZ4y3  это уже с реальными погремушками.
Оно?
Где-то писали, что индусы все держат на Андаманских островах, подальше от паков, но нам никаких следов хранения ничего-такого не видно.

 http://novosti-kosmonavtiki.ru/forum/messages/forum13/topic16052/message1659939/#message1659939

[Liss]

Расчетная циклограмма посадки, UTC:

20:08 Грубое торможение (H=30 km)
20:18 Точное торможение (H=7.4 km)
20:20 Начало терминального навеедния
20:22 Первый снимок десантной камеры
20:23 Посадка
22:23 Раскрытие рампы
22:53 Питание ровера
23:33 Развертывание солнечной батареи ровера
23:49 Сход ровера (начало)
23:59 Сход ровера (на поверхности)
00:15 Снимок посадочного аппарата с ровера

[tnt22]

Meet Pragyan — Chandrayaan 2's Rover!

 ISRO Official

Опубликовано: 6 сент. 2019 г.

Ever wondered about Pragyan's different parts and how it functions? Watch the full video to find out!

https://www.youtube.com/watch?v=V9LFnEycVcghttps://www.youtube.com/watch?v=V9LFnEycVcg (3:37)

[tnt22]

К #383

 Anantha Krishnan M  :f09f87ae::f09f87b3:‏ @writetake 6 ч. назад

Here's the tentative timeline #Chandrayaan2 events today. @akananth

[tnt22]

Трансляция посадки - правительственный канал PIB India

на ТыТрубе

youtube.com/watch?v=lqQe7WsFVQg

Начало трансляции: 19:30 UTC 06.09.2019 / 22:30 ДМВ 06.09.2019

[тавот]

Трансляция на русском. Начало 22:00 ДМВ.

https://www.youtube.com/watch?v=AJpIFxHMt0I

[Astro Cat]

дел

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https://spaceflightnow.com/2019/09/06/chandrayaan-2-mission-status-center/

09/06/2019 22:18 Stephen Clark

The robotic Vikram lander t is set for touchdown on the moon at around 2023 GMT (4:23 p.m. EDT) between two craters — Manzinus C and Simpelius N — at 70.9 degrees south latitude, closer to the moon's south pole than any previous mission.

Less than half of the attempts to land on the moon since the dawn of the Space Age have been successful, and the Chandrayaan 2 mission will be India's first try.

But K. Sivan, chairman of the Indian Space Research Organization, said he is confident Chandrayaan 2 will safely land.

"One good thing is we are learning fr om their failures," he said in a press conference Aug. 20.

"We have the confidence in this landing mission," Sivan said. "We are confident because we have enough testing, enough simulations. All the subsystem- and system-level, sensor-level, thruster-level, all the simulations here are done. We are confident that anything humanly possible, we did.

"But at the same time, it's a new mission," he said. "It's a terrifiying moment for us."

Chandrayaan 2 is India's second mission to the moon, but it marks the country's first attempt to land on another planetary body. The mission is a follow-up to India's Chandrayaan 1 orbiter, which was the first spacecraft to detect evidence of ice hidden in permanently-shadowed craters at the lunar poles.

The Chandrayaan 2 mission launched July 22 from a spaceport on India's southeastern coast, and it arrived in orbit around the moon Aug. 20. The Chandrayaan 2 mission's orbiter module, which will image and study the moon from an altitude of around 62 miles (100 kilometers), separated from the mission's Vikram lander Monday at 0745 GMT (3:45 a.m. EDT).

Since separating from the Chandrayaan 2 orbiter, the Vikram lander has fired its rocket thrusters to maneuver into a lower orbit that ranges between 21 miles (35 kilometers) and 62 miles (101 kilometers) above the moon's surface.

The maneuvers set up Vikram to begin its final 15-minute powered descent to the lunar surface at approximately 2008 GMT (4:08 p.m. EDT) Friday.

"From that time onward, the entire thing will be decided by the Chandrayaan 2 lander only," Sivan said. "When the lander is coming down, it will take images of the place, and it will compare with the image of what we stored on-board. It will find a flat surface, it will re-target, it will hover for some time, and it will decide wh ere to land, and it will land. It will land autonomously in an intelligent way."

Named for Vikram Sarabhai, the father of India's space program, the lander measures about 8.3 feet (2.5 meters) tall and 6.6 feet (2 meters) wide.

Vikram's powered descent sequence will set up for touchdown in an ancient polar highlands region at approximately 70.9 degrees south latitude and 22.8 degrees east longitude.

Five throttleable liquid-fueled engines will control the lander's rate of descent, and a laser rangefinder will guide the spacecraft toward the landing zone. After the start of the powered descent phase, the entire landing sequence will be autonomous, without input from ground controllers.

The five rocket engines will slow the spacecraft's velocity from 3,600 mph (1.6 kilometers per second) to zero during the landing sequence, Sivan said.

"This job is done by the thrusters," he said. "These thrusters are 800-newton (180-pound-thrust) thrusters. They are throttleable. There are four thrusters kept at the four corners, and then there is a central thruster. During the descent phase, the thrust will vary as required. This is a new technology for us, the first time we will do throttling of the engine on-board."

The retrorockets consume hydrazine and nitrogen tetroxide, a storable propellant mixture.

The first part of Vikram's descent, dubbed the "rough braking phase," will use the four corner engines to drastically slow the lander's speed by firing in the spacecraft's direction of travel. Then the craft will begin to pitch over to point its engines toward the lunar surface.

Vikram will then hover at an altitude of about 330 feet (100 meters) using two of its engines to allow the spacecraft's guidance system to sel ect a safe landing site. The navigation computer will use inputs fr om a laser altimeter and hazard avoidance camera to ensure Vikram has a clear landing zone.

Once Vikram selects a landing site, the craft will begin a vertical descent and ignite its center engine roughly 42 feet (13 meters) above the moon's surface to control the lander's final touchdown. The use of the center engine should minimize the dust that the retrorockets will kick up during landing, ISRO says.

Touchdown sensors in Vikram's four landing legs will detect contact with the surface, and the engine will shut down.

[tnt22]

09/06/2019 22:25 Stephen Clark
Around two hours after landing, Vikram will deploy a ramp to allow the mission's 59-pound (27-kilogram) rover to drive onto the lunar surface.

After powering up, the rover — named Pragyan for the Sanskrit word for "wisdom" — will open its solar panel at around 2333 GMT (7:33 p.m. EDT) and begin driving down the ramp a few minutes later.

Here's a view of the Pragyan Rover with the Vikram lander during final preparations before the Chandrayaan 2 mission's July 22 launch.

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Прибыл премьер-министр Индии Нарендра Моди

 

[napalm]

Это Моди явился?
Upd Точно он