Shijian-18 – CZ-5 – Вэньчан (WSLC) – 02.07.2017 11:23 UTC – авария

Автор che wi, 25.02.2017 09:32:26

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azeast

Тяжелая ракета-носитель "Чанчжэн-5" ("Великий поход - 5" ) со спутником "Шицзянь-18" в понедельник доставлена на стартовый стол космодрома Вэньчан (китайская провинция Хайнань, Южный Китай). Как сообщило агентство Синьхуа, запуск запланирован на 2-5 июля.
Ранее сообщалось о том, что ракета должна стартовать с космодрома уже в текущем месяце. Предстоящий запуск станет вторым по счету для этой серии ракет-носителей.
"Чанчжэн-5" была доставлена на космодром в начале мая. Транспортировка ракеты производилась по морю из порта Тяньцзинь и проходила с отставанием от графика из-за неблагоприятных погодных условий. Как отмечает агентство, к настоящему времени все испытания и проверки ракеты завершены, работы по подготовке к запуску вошли в финальную стадию.
Грузоподъемность "Чанчжэн-5" составляет 25 тонн при полете на низкую околоземную орбиту и 14 тонн в случае выхода на геостационарную переходную орбиту. Первый успешный запуск ракеты-носителя данного типа был осуществлен КНР в ноябре 2016 года.


Подробнее на ТАСС:
http://tass.ru/kosmos/4364907

che wi

Запуск второй ракеты-носителя "Чанчжэн-5" с космодрома Вэньчан ожидается в начале июля

ЦитироватьПекин, 26 июня /Синьхуа/ -- Вторую ракету-носитель "Чанчжэн-5" /"Великий поход-5"/ в понедельник доставили в вертикальном положении в зону старта космодрома Вэньчан /провинция Хайнань, Южный Китай/. Ее запуск запланирован на 2-5 июля.

Как сообщили в Государственном управлении оборонной науки, техники и промышленности и Государственном космическом управлении КНР, успешное завершение транспортировки ракеты-носителя "Чанчжэн-5" в вертикальном положении в зону старта свидетельствует о том, что реализация задачи по отправке ракеты "Чанчжэн-5" в полет вступила в стадию запуска.

Вторая ракета-носитель "Чанчжэн-5" была доставлена на космодром Вэньчан 5 мая. Ее запуск будет осуществлен согласно плану после предполетного тестирования.

"Чанчжэн-5" - тяжелая экологически чистая ракета-носитель нового поколения, которая представляет высочайший инновационный уровень Китая в области производства ракет-носителей. Грузоподъемность "Чанчжэн-5" составляет 25 тонн при выходе на низкую околоземную орбиту и 14 тонн при выходе на переходную геостационарную орбиту. Она позволит повысить грузоподъемность китайских ракет в открытом космосе в 3,5 раза.

С помощью второй ракеты-носителя "Чанчжэн-5" планируется вывести на намеченную орбиту спутник "Шицзянь-18", который станет испытательным полигоном на орбите по тестированию ключевых технологий для спутниковой платформы нового поколения "Дунфанхун-5".

tnt22

Цитировать Andrew Jones‏ @AJ_FI 10 ч. назад

China's second Long March 5 heavy-lift rocket has been transferred to launch tower at Wenchang. Launch window July 2-5.
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7 ч. назад

Article: China's most powerful rocket - the Long March 5 - rolled out for second mission at Wenchang https://goo.gl/53zCtn 
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Rachana‏ @rachanareddym 7 ч. назад

Long March 5: China's most powerful rocket rolled out for second mission http://dlvr.it/PQ6pcG 

tnt22

http://gbtimes.com/china/long-march-5-chinas-most-powerful-rocket-rolled-out-second-mission
ЦитироватьLong March 5: China's most powerful rocket rolled out for second mission

Andrew Jones
2017/06/26


China has rolled out its largest and most powerful launch vehicle, the Long March 5, in preparation for the rocket's second launch from the Wenchang Satellite Launch Centre.

Transfer of Long March 5 (Y2) from the vertical assembly building to the launch tower began at 08:30 local time (00:30 UTC) Monday, completing the 2.7 km trip around 11:00 am.

This second mission will see the 2.5 stage Long March 5 launch the Shijian-18 experimental telecommunications satellite to geostationary transfer orbit. 

The launch window opens on July 2 and runs to July 5. The launch is, as with other launches from the new launch centre on Hainan Island, expected to be streamed live.
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The Long March 5 (Y2) rocket leaves the assembly building on the morning of June 26, 2017. (Photo: Wei Jinghua, China Daily)


Above: Rollout of the Long March 5 (Y2).

Long March 5 payload

Shijian-18 is based on the China's new, untested Dongfanghong-5 (DFH-5) satellite platform. At around seven metric tonnes, it will be one of the most massive satellites sent to geostationary orbit, some 36,000 kilometres above the Earth.

The High-Throughput satellite will boast a capacity of around 70 Gbps, and test both space-based laser communications and powerful LIPS-300 ion thrusters, which will be used for station keeping.

The Long March 5 debuted in dramatic circumstances in November last year, and is set to launch China's most complex and ambitious mission so far, the Chang'e-5 lunar sample return mission, in November.

Data from the early July mission will be valuable to the Chang'e-5 mission, which is key part of expanding lunar plans.


Above: The maiden flight of Long March 5 in November 2016.

At over 53m high and with a core diameter of 5m, the Long March 5 will have a mass at liftoff of around 800 metric tonnes.

Though its development was delayed by technical challenges, the launch vehicle greatly boosted China's space capabilities.

Fuelled by crogenic liquid hydrogen, kerosene and liquid oxygen, the Long March 5 family can loft a payload of 25 tonnes to low Earth orbit, 14 tonnes in geostationary transfer orbit, boosting China's launch capabilities by 2.5 times over pre-existing Long March carrier rockets.

BackgroundFive things to know about China's Long March 5

It will also launch China's first independent interplanetary mission, to Mars, in 2020. A variant for low Earth orbit launches, the Long March 5B, will be used to launch 20 metric tonne modules for the future Chinese Space Station.

The core module, Tianhe, is ready for launch in 2019, following a test launch of the 5B next year, which could carry a test return capsule for a next-generation Chinese crewed spacecraft.


The Chang'e-5 return capsule (right) and lander and ascent vehicles (left, background) (Framegrab/CCTV).
 
Long March 5 background

The Long March 5, developed by the China Academy of Launch Vehicle Technology (CALT) , is comparable to the most powerful active rockets in the world such as the Delta-IV Heavy, Atlas V and Ariane 5.

The new launch vehicle also meant new facilities. While China's established Long March 2, 3, and 4 can transported by train to the three inland launch sites at Jiuquan and Taiyuan in the north and Xichang in the southwest, the five-metre diameter core of the Long March 5 makes it too wide for the transport infrastructure.

VideoChina opens up over dramatic Long March 5 launch

So a new coastal launch centre was required and established on the southern island province of Hainan. Being closer to the equator, the Wenchang launch site also gives rockets a boost from the greater rotational speed of the Earth.

Two specially designed ships, Yuanwang 21 and 22, deliver components for the Long March 5 and 7 from Tianjin to Hainan.


Above: Yuanwang 21 and 22 delivering Long March 5 to Qinglan Port, Hainan.


Above: Rocket team members pose as the Long March 5 rolls out (CASC).
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tnt22

Ускоренное видео вывоза от CCTV+
ЦитироватьLong March-5 Y2 Carrier Rocket Moved to Launch Area

CCTV+

Опубликовано: 27 июн. 2017 г.

China completed the vertical transfer of the Long March-5 Y2 carrier rocket to the launch pad at the Wenchang Space Launch Center in south China's Hainan Province on Monday in preparation for sending a communication satellite into space in early July.

(0:49)

tnt22

#26
Ещё одно ускоренное видео вывоза ("от дверей до дверей"  ;)   )
ЦитироватьChina to launch Long March-5 Y2 carrier rocket in early July

New China TV

Опубликовано: 26 июн. 2017 г.
(1:11)

che wi

ЦитироватьA1667/17 - A TEMPORARY RESTRICTED AREA ESTABLISHED WITHIN A CIRCLE CENTERED AT N1937E11057 WITH RADIUS OF 25KM, VERTICAL LIMITS: GND-UNL.
GND - UNL, 02 JUL 11:13 2017 UNTIL 02 JUL 16:11 2017. CREATED: 29 JUN 05:34 2017

tnt22

Цитировать Cosmic Penguin‏ @Cosmic_Penguin 12 ч. назад

China's Long March 5 2nd flight will launch on July 2 @ around 11:20 UTC (evening local time), according to air space closure notices.

tnt22

https://spaceflight101.com/long-march-5-rocket-set-for-second-flight-this-weekend/
ЦитироватьChina's Long March 5 Heavy-Lift Rocket targets Sunday Liftoff with heaviest Geostationary Satellite
June 30, 2017


Photo: CALT

China's Long March 5 – ranking among the most powerful rockets in the world – is standing ready atop its launch pad on Hainan Island for liftoff this weekend with one of the heaviest, if not the heaviest Geostationary Satellite ever flown, test driving a new platform that enables future ultra-high performance satellites.
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Long March 5 is the most powerful member of China's new line of rockets that debuted in the last two years to slowly phase into operational missions as the country aims to replace its antiquated rocket technology relying on lower-efficiency toxic propellants with modern rockets that are environmentally friendly and offer a much greater performance which is badly needed to meet China's ambitious goals in human spaceflight and robotic solar system exploration.

The Long March 5 took flight for the first time on November 3, 2016 – lighting up the night skies over its picturesque launch site after a dramatic countdown that had engineers and controllers scrambling to work around a series of issues that cropped up as late as T-2 minutes.


Long March 5 Maiden Launch – Photo: Xinhua

Rising fr om its pad, Long March 5 provided quite a sight as it streaked into the night under the power of its four large boosters and cryogenic core stage. The mission was not without trouble and suffered a premature shutdown of the rocket's second stage, requiring the YZ-2 upper stage to use performance margin planned for the inaugural flight to compensate and inject the Shijian-17 satellite into the planned Geostationary Drift Orbit.

Engineers are hoping all teething issues were ironed out and Long March 5 will be able to demonstrate its reliability on Sunday's flight in order to clear the heavy-lifter for its upcoming high-profile mission in November, lifting the Chang'e 5 lunar sample return mission.

Long March 5 will also be called upon for the launch of China's first Mars Global Remote Sensing Orbiter and Rover Mission in 2020 and it will lift the Tianhe Core Module and two science laboratory modules for the Chinese Space Station starting in 2019.

Sunday's launch appears to be targeting liftoff around 11:20 UTC, 7:20 p.m. local time based on navigational warnings, however, as shown by the last mission, Long March 5 can have an extended launch window if the satellite's specifications allow.

Hidden under the rocket's payload fairing is Shijian-18, an experimental communications satellite that is debuting the DFH-5 next-generation satellite bus developed by the Chinese Academy of Space Technology (CAST) for future ultra-high performance communications satellites.

>>Shijian-18 Satellite & DFH-5 Satellite Platform


Photo: CCTV via 9ifly.cn

With a reported launch mass of seven metric tons, Shijian-18 appears to be the heaviest unclassified Geostationary Satellite launched to date, surpassing the TerreStar-1 satellite that is the current record-holder with a launch mass of 6,902kg.

The DFH-5 satellite platform builds upon new satellite technology developed for the current-generation DFH-4 platform and adds a number of innovative developments such as a truss structure building the backbone of the large satellite, new 2D Twice Deploying Semi-Rigid Solar Arrays, advanced thermal control systems with deployable radiators, and a new type of self-controlled propellant system.

DFH-5 uses hybrid propulsion with chemical thrusters and new high-thrust ion propulsion for stationkeeping over extended mission lives.

According to CAST, DFH-5 more than triples the payload capacity of current satellites and future iterations of the vehicle may weigh up to 9,000 Kilograms and support payloads of up to 2,200 Kilograms with a payload power of up to 28 Kilowatts – surpassing any satellite bus currently in operation.


DFH-5 Satellite – Image: CAST

Shijian-18 is outfitted with a powerful High-Throughput Payload operating in Ka-Band and delivering a number of high-capacity beams. China launched its first high-throughput satellite earlier this year (Shijian-13) with a total data throughput of 20Gbps, to be eclipsed by Shijian-18 that will deliver a throughput in excess of 70 Gbps.

CAST says the DFH-5 satellite platform will be suitable for China's highest capacity communications satellites and the bus will also be available to international customers looking for high-power applications. Other potential uses of DFH-5 are in Earth Remote Sensing and some technologies developed for the program, such as the LIPS-300 ion thrusters, could be adapted for Solar System missions like asteroid explorers.

This weekend's mission with Shijian-18 will significantly reduce margins for Long March 5 versus the launch of the ~4-metric ton Shijian-17 last year, not allowing for performance shortfalls on any stage of the flight. The three-stage version of Long March 5 can lift 14 metric tons into a standard Geostationary Transfer Orbit and around 4,500 Kilograms directly to Geostationary Orbit; Shijian-18 is likely aiming for a GTO with reduced delta-v to GEO (either through a supersynchronous injection or a multi-hour ascent with perigee-raising maneuver).

>>Long March 5 Launch Vehicle Overview


Photo: Xinhua

If launching at the expected time on Sunday, Long March 5 will take flight just seven minutes after sunset, making for a potentially spectacular scene as the vehicle rises into illumination before flying toward night. Overall, Long March 5 stands 57 meters tall and weighs 867 metric tons at liftoff – employing two five-meter diameter cryogenic rocket stages, four Kerolox boosters and a hypergolic-fueled YZ-2 upper stage capable of multiple engine re-starts.

Ignition sequence start will be commanded at T-10 seconds, with the twin YF-77 engines on the core stage firing up first to reach operational conditions before the boosters command their YF-100 engines to ignite and lift the rocket off the ground with a total thrust of 1,078 metric-ton-force.

Clearing its 92-meter tall Service Tower, Long March will pitch and roll onto a south-easterly departure path to head towards the equator as part of a standard Geotransfer mission design.

The four boosters, each with its own YF-100 engine that builds a common element of China's new rocket series, will fire until T+173 seconds, each burning around 135 metric tons of Liquid Oxygen and Kerosene to deliver 240 metric-ton-force of thrust. Separation of the 27-meter long, 3.35m diameter boosters will occur over 70 Kilometers in altitude via separation motors.

Heading on towards orbit, Long March 5 will rely on its two YF-77 cryogenic main engines for another five minutes, delivering 143 metric-ton-force of thrust when flying through the rarefied upper atmosphere. YF-77 is China's first high-thrust full cryogenic engine, marking a significant technological development. Employing an open staged combustion cycle, YF-77 was built to be efficient at sea level and in the tenuous upper atmosphere to be suitable for a long-burning core stage.


Booster Separation – Photo: CCTV

Separation of the 12.5-meter long fairing halves is expected a little over four and a half minutes into the flight when Long March 5 will be well over 120 Kilometers in altitude where aerodynamic forces are no longer a concern to the satellite. The core stage will finish its job just shy of T+8 minutes, having burned through some 160 metric tons of Liquid Oxygen and Liquid Hydrogen to accelerate the stack to ~5.8 Kilometers per second. Separation of the 33-meter tall core will follow within seconds of shutdown to clear the rocket's second stage for ignition.

Stage 2 is powered by a pair of YF-75D engines, each delivering nine metric-ton-force of thrust, employing an expander cycle in which the Hydrogen propellant is expanded into is gaseous phase to drive the turbopumps. The engines are highly throttle-able and can be ignited multiple times to allow Long March 5 to support flexible mission profiles.


Second Stage Engine Section – Photo: CCTV

A standard Geotransfer mission comprises a pair of firings of the second stage, the first a little over six minutes in duration to raise the vehicle's speed by two Kilometers per second and reach a Low Earth Parking Orbit around 170 Kilometers in altitude. Concluding its first burn, the second stage will coast for eleven minutes to move to a position close to the equator for the second burn, aiming to place the vehicle into a sub-GTO type orbit from wh ere the Yuanzheng-2 upper stage will take over powered flight duties.

Depending on the mission profile chosen for the Shijian-18 mission, Yuanzheng-2 is likely looking at a pair of engine burns, the first immediately after separation from the second stage, firing up its twin 660kgf YF-50D engines to boost the stack into an elliptical transfer orbit with apogee near GEO altitude. The second burn would then occur after a lengthy climb to apogee in order to reduce the inclination and raise the perigee, cutting the fuel expenditure by the satellite for its climb into a stationary orbit. Should this profile be chosen, separation of the satellite would be expected nearly six hours after liftoff.
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tnt22

Цитировать Andrew Jones‏ @AJ_FI 6 ч. назад

Live streams *should* be available from CCTV/CGTN state media, and some other sources.

tnt22

Началась заправка CZ-5
Цитировать ChinaSpaceflight‏ @cnspaceflight 7 ч. назад

【实践十八号/SJ-18】7月1日下午,长征五号遥二火箭开始推进剂加注,计划于7月2日发射。
Цитировать[Practice on the 18th / SJ-18] July 1 afternoon, the Long March V Y2 began propellant filling, plans to launch on July 2.

tnt22


che wi

Ракету-носитель "Чанчжэн-5 Y2" запустят 2 июля

ЦитироватьВэньчан /пров. Хайнань/, 1 июля /Синьхуа/ -- Китай планирует в воскресенье запустить ракету-носитель "Чанчжэн-5 Y2" с космодрома Вэньчан /провинция Хайнань, Южный Китай/. Об этом сообщили в субботу в Государственном управлении оборонной науки, техники и промышленности.

"Чанчжэн-5" - тяжелая экологически чистая ракета-носитель нового поколения, которая представляет высочайший инновационный уровень Китая в области производства ракет-носителей. Грузоподъемность "Чанчжэн-5" составляет 25 тонн при выходе на низкую околоземную орбиту и 14 тонн при выходе на переходную геостационарную орбиту. Она позволит повысить грузоподъемность китайских ракет в открытом космосе в 3,5 раза.

tnt22

Цитировать Andrew Jones‏ @AJ_FI 27 мин. назад

Long March 5 Y2 today saw fuelling begin with kerosene. Liquid hydrogren and liquid oxygen to be added Sunday morning.
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tnt22

https://spaceflightnow.com/2017/07/01/second-launch-of-chinas-long-march-5-heavy-lift-rocket-set-for-sunday/
ЦитироватьSecond launch of China's Long March 5 heavy-lift rocket set for Sunday
July 1, 2017 Stephen Clark

China's Long March 5 rocket is counting down to liftoff Sunday from the country's tropical island space center with a high-power, electrically-propelled communications satellite.

The heavy-lifter is scheduled to blast off from the Wenchang launch base on Hainan Island at around 1120 GMT (7:20 a.m. EDT; 7:20 p.m. Beijing time) Sunday, heading for an elliptical geostationary transfer orbit with the Shijian 18 communications satellite, the first in a new series of modern Chinese high-capacity relay stations.

Sunday's launch will be the second flight of a Long March 5 rocket, China's most powerful launcher, which made a successful maiden mission in November 2016.

Chinese space officials will closely watch the performance of the Long March 5 rocket Sunday as engineers prepare to send China's Chang'e 5 sample return mission to the moon in November on the third launch of the heavy-lifter.
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Ten engines on the Long March 5's first stage and four strap-on boosters will send the launcher skyward on 2.4 million pounds of thrust. The 187-foot-tall (57-meter) Long March 5 will head east from the Hainan Island launch base, which will host its fourth launch Sunday after entering service last year.

Ground crews at Wenchang rolled the Long March 5 to its launch pad Monday.

Riding on a vertical launch table, the Long March 5 completed the trip in about two-and-a-half hours, according to the China Academy of Launch Vehicle Technology. Swing arms on the seaside launch pad's 300-foot-tall (92-meter) service gantry enclosed the Long March 5 for final launch preparations.

China's state-run media has not said if they plan any live coverage of the launch.

The Long March 5's maiden test flight last year deployed an experimental satellite named Shijian 17 to test electric thrusters, technology that could give Chinese spacecraft improved maneuverability between different types of orbits around Earth.


The Long March 5 rocket begins its rollout to a launch pad at the Wenchang space center Monday, June 26. Credit: Xinhua

The Shijian 18 satellite aboard Sunday's flight is the first in an upgraded series of Chinese spacecraft called the DFH-5 platform. Developed by the China Academy of Space Technology, the DFH-5 design is bigger and more capable than China's existing satellites, providing more power for communications payloads and additional data throughput for Internet providers, television broadcasters and data networks.

Shijian 18 also hosts a laser communications instrument for even higher-speed data links, and ion thrusters will keep the spacecraft in geostationary orbit, a perch more than 22,000 miles (nearly 36,000 kilometers) over the equator.

China hopes to sell communications satellites based on the new DFH-5 design to international governments and commercial customers.

Ground controllers will run the Shijian 18 satellite through extensive testing to verify the new satellite design works as expected.

Chinese officials say the Long March 5 is a centerpiece of the country's long-term space ambitions, allowing China to dispatch satellites to space that are twice as heavy as payloads that can fit on earlier Long March rockets.

The heavy-duty rocket can haul about the same amount of weight into space as United Launch Alliance's Delta 4-Heavy, the world's other leader in space lift capability. The Long March 5 bests the capacity of the European Ariane 5 and Russian Proton launchers.

The Long March 5 is one of three new launch vehicles China has debuted in the last two years.

The Long March 6 is the smallest of the three, tailored to deliver small satellites into low-altitude orbits.
 
The medium-lift Long March 7 is designed to carry resupply ships, and eventually crews, to China's future space station.

The Long March 5 will haul three 20-ton modules to low Earth orbit for the Chinese space station, beginning next year with the launch of the Tianhe 1 core module. The Long March 5 is also slated to launch the robotic Chang'e 5 mission to the moon later this year to scoop up surface samples for return to Earth, and China's first Mars rover will ride a Long March 5 rocket when it blasts off in mid-2020.

The new family of launchers will eventually replace China's Long March 2, 3 and 4 rockets, which burn toxic liquid propellants and launch from inland space centers, requiring them to drop spent stages on land.

The Long March 5 rocket, when flown from Wenchang, jettisons its boosters over the South China Sea. Its engines also consume a more environmentally-friendly mixture of liquid oxygen, liquid hydrogen and kerosene.
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Безумный Шляпник

NAVAREA XI [B]NO.17-0427 Date:2017/06/30 11 UTC [/B]
 
SOUTH CHINA SEA, NORTHERN PART AND NORTH
PACIFIC, WESTERN PART.
ROCKET LAUNCHING. 021000Z TO 021300Z
JUL. FOLLOWING RANGE CLEARANCE AREAS
ESTABLISHED. AREAS BOUNDED BY
A. 19-07.2N 119-06.1E
 19-10.5N 118-03.3E
 19-37.4N 118-04.8E
 19-34.1N 119-07.7E.
B. 18-45.3N 124-00.2E
 18-52.2N 122-35.0E
 19-19.0N 122-37.3E
 19-12.2N 124-02.7E.
C. 15-22.9N 144-36.9E
 15-48.7N 142-25.2E
 16-41.6N 142-36.1E
 16-15.7N 144-48.4E.
CANCEL THIS MSG 021400Z JUL.