China Space Military：Recon, Satcom, Navi, ASAT/BMD, Orbital Vehicle, SLV, etc.

[JSCh]

林晓弈
今天 19:40 来自 航天爱好者网超话 已编辑
【“北航4号”火箭成功发射】5月27日上午11时01分，由北航宇航学院牵头开展的学生大型综合项目“北航4号”临近空间火箭动力飞行器，在我国西北某地一飞冲天。400s后，顺利降落在了预定的位置，飞行数据显示，火箭助推点火正常、出架正常，分离正常、主级高空点火正常，按照预定弹道完成了飞行，首飞试验取得圆满成功！
“北航4号”临近空间火箭动力飞行器全长8.7m，重约1300kg，由固体动力助推器和固液动力巡航主级组成。其中，固体助推火箭发动机推力约150kN，工作时间8.2s；固液巡航火箭发动机采用98%过氧化氢/端羟基聚丁二烯推进剂组合，最大推力约3kN，推力调节比3:1，工作时间大于200s。飞控采用GPS/北斗双模光纤惯导系统，实现有控巡航飞行。
试验队员进行“北航4号”发射准备工作
本次飞行完成什么任务？
此次飞行主要完成有动力临近空间飞行的演示验证，平飞高度24km，平飞速度3Ma，飞行距离近200km。
此次飞行试验成功验证了长时间变推力固液火箭发动机技术和大空域、宽速域火箭动力飞行器总体设计、导航制导与飞行控制技术，可应用于临近空间大气参数测量、对地观测和空中数据快速传输，未来可发展成为低成本/快速响应小型运载火箭等新型火箭动力飞行器。

Machine Translation:
Today at 19:40 from the aerospace fan network super talk

[Successful launch of Beihang 4 rocket]

At 11:01 am on May 27th, a large-scale comprehensive student project "Beihang 4" led by Beihang University of Aeronautics and Astronautics flew into the sky in northwest China. After 400s, it landed smoothly at the predetermined position. The flight data showed that the rocket booster ignition was normal, the launch was normal, the separation was normal, and the main stage high-altitude ignition was normal. The flight was completed accordingly to the planned trajectory - the first flight test was a complete success!

The Beihang 4 near-space rocket is 8.7 meters long and weighs approximately 1300 kg. It consists of a solid-power booster and a solid-liquid main stage. Among them, the solid-propelled rocket engine has a thrust of about 150kN and an operating time of 8.2s; the solid-liquid main stage engine uses a combination of 98% hydrogen peroxide/hydroxyl-terminated polybutadiene propellant with a maximum thrust of about 3kN and a thrust adjustment ratio of 3:1. Working time is greater than 200s. The flight control uses GPS/Beidou dual-mode fiber optic inertial navigation system to achieve controlled cruise flight.

What mission was completed on this flight? This flight mainly completed the demonstration verification of powered near-space flight. The level flight height is 24km, the level flight speed is 3Ma, and the flight distance is nearly 200km.

This flight test successfully verified the long-endurance variable thrust solid-liquid rocket engine technology and the overall design, navigation guidance and flight control technology of large-airspace and wide variable-speed rocket. It can be applied to the measurement of atmospheric parameters in the near space, earth observation and fast data transmission over the air. In the future, it can be developed into a new type of rocket such as a low-cost/fast-response small launch vehicle.

​

 

[JSCh]

China tests inter-satellite links of BeiDou navigation system
Source: Xinhua| 2020-06-08 22:00:08|Editor: huaxia

XI'AN, June 8 (Xinhua) -- The Xi'an Satellite Control Center's tests have shown links among the satellites of the BeiDou Navigation Satellite System (BDS) are stable to ensure that the constellation can be completed as scheduled.

The tests showed that the inter-satellite links meet the demands of the construction of the global system, said Yuan Yong, a senior engineer from the control center.

He said that the tests, lasting for more than two years, covered 29 satellites of the BDS-3 system.

Since the ground stations in China cannot continuously track and control all the BDS satellites, the inter-satellite links help establish communication among them. Instructions sent by the control center to one satellite in the constellation is transmitted to all.

China began to develop its navigation system, named after the Chinese term for the Big Dipper constellation, in the 1990s and started serving the Asia-Pacific Region in 2012.

Currently, all the first generation BDS-1 satellites have ended operations, and a total of 54 BDS-2 and BDS-3 satellites have been sent to space. The BDS-3 system will consist of 30 satellites.

China aims to launch the last BDS-3 satellite in June to complete the construction of the constellation and provide high-precision and reliable positioning, navigation and timing services around the world.

 

[JSCh]

China successfully launches new ocean observation satellite
Source: Xinhua| 2020-06-11 08:52:58|Editor: huaxia

A Long March-2C rocket, carrying the satellite HY-1D, is launched from the Taiyuan Satellite Launch Center, north China's Shanxi Province, June 11, 2020. China successfully sent an ocean observation satellite into orbit on Thursday. The new satellite will form China's first satellite constellation for marine civil service together with HY-1C, which was launched in September 2018. (Photo by Zheng Taotao/Xinhua)

TAIYUAN, June 11 (Xinhua) -- China successfully sent an ocean observation satellite into orbit from the Taiyuan Satellite Launch Center in north China's Shanxi Province on Thursday.

A Long March-2C rocket, carrying the satellite HY-1D, lifted off at 2:31 a.m. (Beijing Time), according to the China National Space Administration (CNSA).

The new satellite will form China's first satellite constellation for marine civil service together with HY-1C, which was launched in September 2018, and double the current ocean observation data, according to CNSA and the Ministry of Natural Resources.

The satellite constellation is expected to improve China's capabilities in observing ocean color, coastal resources and ecological environment, and ramp up support for meteorology, agriculture, water conservation and transportation.

It will also be of great significance to coping with global climate change and building an ecological civilization.

HY-1D, China's fourth remote-sensing satellite for ocean observation, carries five payloads that have similar functions as HY-1C. A scanner can observe ocean color globally, and measure the surface temperature of the seas, every day, with a spatial resolution of 1.1 km.

The imager can obtain coastal water environment, coastal zone and ecological environment of rivers and lakes with a spatial resolution of 50 meters, every three days.

It is also equipped with an automatic identification system for ships.

The data will be used for resource and environmental surveys, and to facilitate marine disaster prevention and mitigation, sustainable utilization of marine resources, early warning for marine ecology, and environmental protection.

The satellite was developed by the DFH Satellite Co. Ltd. under the China Academy of Space Technology, and the carrier rocket was produced by the China Academy of Launch Vehicle Technology.

Thursday's launch was the 334th by the Long March rocket series.

 

[samsara]

China's 13th orbital launch in 2020:

Successful launch of the Chinese oceanic satellite HY-1D overnight at the Taiyuan space center.

Takeoff of the CZ-2C rocket took place on June 11 at 02:31:24 Beijing time.

https://twitter.com/x/status/1270950599048130560

 

[JSCh]

China plans to launch meteorological satellite to dawn-dusk orbit
Source: Xinhua| 2020-06-11 18:01:20|Editor: huaxia

BEIJING, June 11 (Xinhua) -- China plans to send a meteorological weather satellite into a dawn-dusk orbit, its developer said Thursday.

The satellite was designed and built by the Shanghai Academy of Spaceflight Technology, affiliated with the China Aerospace Science and Technology Corporation. It will be the world's first polar-orbiting weather satellite in a dawn-dusk orbit.

According to the academy, the satellite is undergoing final tests and is expected to come out of the factory by the end of 2020.

A dawn-to-dusk orbit is a sun-synchronous orbit in which the satellite tracks but never moves into the Earth's shadow. Since the satellite is close to the shadow, the part of the Earth the satellite is directly above is always at sunset or sunrise. As the sun's light is always on the satellite, it can always use its solar panels.

China has launched four Fengyun-1 and four Fengyun-3 polar-orbiting weather satellites, which were also developed by the academy. Four more Fengyun-3 satellites are under development.

Once the satellite is put in a dawn-dusk orbit, China will be able to update its global polar-orbiting meteorological satellite data in four hours, improving its numerical weather forecast capacities, the academy said.

 

[JSCh]

China launches first satellites for new generation space-borne IoT project
By Deng Xiaoci Source:Global Times Published: 2020/5/12 10:54:00

Developer names one satellite after Wuhan, in honor of sacrifices made during the epidemic

Photo:courtesy of CASIC

China has successfully launched the first two communication satellites for its new space-based Internet-of-Things (IoT) project into designated orbit on Tuesday, with the first one named after its birthplace Wuhan, a city once hit hard by the COVID-19, according to China Aerospace Science and Industry Corporation (CASIC), the developer.

The two satellites were launched by the country's Kuaizhou-1A commercial carrier rocket, which was also developed by the Wuhan-based Sanjiang Group under the CASIC, on Tuesday from the Jiuquan Satellite Launch Center in Northwest China's Gansu Province.

The completion of the Tuesday's mission marks the beginning of China's new generation spaceborne IoT project, codenamed the "Xingyun Engineering" project.

"Xingyun" project is developed by CASIC with a network of 80 low-orbit communication satellites,

The satellites will be used to test applications in multiple fields, such as intelligent container monitoring, polar environmental monitoring, meteorological forecasting as well as marine transport communication, and lay a foundation for the following space-based IoT network.

CASIC told the Global Times on Tuesday in a statement that the construction of an 80-satellite network will be completed by around 2023, and will provide a solution to current "communication blind spots."

IoT services have been strained by poor coverage of ground-based cellular communication networks that are effective by only 20 percent on the ground, and less than 5 percent at sea globally.

The Kuaizhou-1A carrier rocket that participated in the launch mission is also developed by CASIC, which is mainly used to launch 300-kilogram level satellites into lower orbits, and the solid propellant rocket model has successfully conducted 8 launch missions.

Conceptual image of the Xingyun-2 satellites and network. Photo: Courtesy of CASIC

Interestingly, the Wuhan-based Sanjiang Group has named the Xingyun-2 01 satellite after Wuhan, in order to promote and celebrate the city's orderly resumption of work and production in the wake of a successful curbing of the epidemic.

The rocket body has been painted with slogans that read "Heroic Wuhan, Great China" and "Tribute to the medical workers," to honor the city, its people and all medical professionals who fought together in solidarity claiming victory in the epidemic battle.

The Global Times reporter also learned from CASIC that the Wuhan-based manufacturing complex for the Kuaizhou rocket series is near completion and in a final acceptance check stage.

The new complex will have an initial capacity of manufacturing 20 solid propellant rockets after becoming operational, CASIC told the Global Times in a statement.

The project was launched in May 2017 and was scheduled to be delivered by the end of February this year. However, impacted by the COVID-19 pandemic, the complex is expected to complete the acceptance check by May and become fully operational before the end of 2020.

China's IoT satellites complete phase-1 in-orbit tests
Source: Xinhua| 2020-06-12 20:58:00|Editor: huaxia

Two satellites, Xingyun-2 01 and 02, are launched by a Kuaizhou-1A (KZ-1A) carrier rocket from the Jiuquan Satellite Launch Center in northwest China, May 12, 2020. (Photo by Shan Biao/Xinhua)

WUHAN, June 12 (Xinhua) -- Two satellites for China's space-based Internet-of-Things (IoT) project have completed phase-1 tests in orbit, sources with the China Aerospace Science and Industry Corporation said.

The satellites, Xingyun-2 01 and 02, were launched by a Kuaizhou-1A carrier rocket on May 12 from the Jiuquan Satellite Launch Center.

Engineers tested the satellite platforms, payloads, and key technologies such as inter-satellite links. The results were in line with expectations, the corporation said.

Additional in-orbit tests will be continued for the completion of the Xingyun project, China's first self-developed, space-based IoT constellation.

The project is anticipated to solve problems detected in the IoT businesses' communication blind-zone, as a result of deficient coverage of cellular wireless communication networks.

By around 2023, the Xingyun project will have completed construction of the space-based IoT constellation with 80 low-orbit communication satellites.

The Xingyun-2 01 and 02 satellites employ the technology of inter-satellite laser links, which enables the in-orbit satellites to communicate over long distances and hence upgrade the real-time performance of communication services.

 

[JSCh]

https://twitter.com/x/status/1258687107708551168

China's experimental manned spaceship's return capsule shown to public
Premiered 21 hours ago
CGTN

The return capsule of the trial version of China's new-generation manned spaceship was opened in Beijing recently, with the interior arrangements receiving their first public showing. The mission required the capsule to deliver nearly 1,000 kinds of supplies to the space station, a space trip with heavier goods than ever before in China

 

[JSCh]

https://twitter.com/x/status/1272099635633389568

https://twitter.com/x/status/1272105079932248064

 

[JSCh]

China successfully launches new ocean observation satellite
Source: Xinhua| 2020-06-11 08:52:58|Editor: huaxia

A Long March-2C rocket, carrying the satellite HY-1D, is launched from the Taiyuan Satellite Launch Center, north China's Shanxi Province, June 11, 2020. China successfully sent an ocean observation satellite into orbit on Thursday. The new satellite will form China's first satellite constellation for marine civil service together with HY-1C, which was launched in September 2018. (Photo by Zheng Taotao/Xinhua)

TAIYUAN, June 11 (Xinhua) -- China successfully sent an ocean observation satellite into orbit from the Taiyuan Satellite Launch Center in north China's Shanxi Province on Thursday.

A Long March-2C rocket, carrying the satellite HY-1D, lifted off at 2:31 a.m. (Beijing Time), according to the China National Space Administration (CNSA).

The new satellite will form China's first satellite constellation for marine civil service together with HY-1C, which was launched in September 2018, and double the current ocean observation data, according to CNSA and the Ministry of Natural Resources.

The satellite constellation is expected to improve China's capabilities in observing ocean color, coastal resources and ecological environment, and ramp up support for meteorology, agriculture, water conservation and transportation.

It will also be of great significance to coping with global climate change and building an ecological civilization.

HY-1D, China's fourth remote-sensing satellite for ocean observation, carries five payloads that have similar functions as HY-1C. A scanner can observe ocean color globally, and measure the surface temperature of the seas, every day, with a spatial resolution of 1.1 km.

The imager can obtain coastal water environment, coastal zone and ecological environment of rivers and lakes with a spatial resolution of 50 meters, every three days.

It is also equipped with an automatic identification system for ships.

The data will be used for resource and environmental surveys, and to facilitate marine disaster prevention and mitigation, sustainable utilization of marine resources, early warning for marine ecology, and environmental protection.

The satellite was developed by the DFH Satellite Co. Ltd. under the China Academy of Space Technology, and the carrier rocket was produced by the China Academy of Launch Vehicle Technology.

Thursday's launch was the 334th by the Long March rocket series.

https://twitter.com/x/status/1272438699096018944

 

[samsara]

The launch window of the final satellite for China's home-developed #BeiDou Navigation Satellite System has been confirmed as 10:11 am to 10:50 am (Beijing time) on Tuesday (2020-06-16): authorities.

https://twitter.com/x/status/1272453796237582338

 

[samsara]

The launch mission of the last satellite for the global constellation deployment of the BeiDou Navigation Satellite System (BDS) was postponed after technical problems were found during pre-launch tests.

https://twitter.com/x/status/1272710487172669440

Yeah, better make sure everything if there is any slightest doubt or issue. Schedule ain't that critical as a successful launch itself! A completely successful launch is what really matters!!

Meanwhile, this footage with English subtitles uploaded by SciNews is cool!

Long March-3B ready to launch the last BeiDou-3 satellite

 

[JSCh]

Breaking !!

央广军事
7分钟前 来自 搜狗高速浏览器 已编辑
【#高分九号03星发射成功# 转起祝贺！

】2020年6月17日15时19分，我国在酒泉卫星发射中心用长征二号丁运载火箭，成功将高分九号03星送入预定轨道，发射获得圆满成功。此次任务还搭载发射了皮星三号A星、和德五号卫星。这也是长征系列运载火箭的第335次飞行。（总台央广记者朱霄雄、郝铮，摄影：航天科技集团一院吴佳栋，酒泉卫星发射中心单彪）

National Radio - Military
7 minutes ago
[#高分九号03星播成功# Turn to congratulations! [Powerful]】At 15:19 on June 17, 2020, our country used the Long March-2D carrier rocket at the Jiuquan Satellite Launch Center to successfully send the Gaofen-9 03 satellite into planned orbit, and the launch was a complete success. The mission also carried the launch of Pixing-3A and Hede-5 satellites. This is the 335th flight of the Long March series of launch vehicles. (Reporters Zhu Xiaoxiong and Hao Zheng of CCTV, photo: Wu Jiadong, First Institute of Aerospace Science and Technology Group, Shan Biao, Jiuquan Satellite Launch Center)

​

Update:
China launches new Earth observation satellite
Source: Xinhua| 2020-06-17 15:57:19|Editor: huaxia

JIUQUAN, June 17 (Xinhua) -- China launched a new Earth observation satellite from the Jiuquan Satellite Launch Center in northwest China at 3:19 p.m. Wednesday (Beijing Time).

The satellite Gaofen-9 03, sent into orbit by a Long March-2D carrier rocket, is an optical remote-sensing satellite with a resolution up to the sub-meter level.

The satellite will be mainly used for land survey, city planning, land right confirmation, road network design, crop yield estimation and disaster prevention and mitigation, as well as providing information for the construction of the Belt and Road.

Via the same carrier rocket, two other satellites were also sent into space. One of them, developed by Zhejiang University, will be used to test pico-satellite and nano-satellite technologies.

The other satellite, developed by Beijing-based China HEAD Aerospace Technology Co., will be used to collect global information on ship and flight statuses and the Internet of Things.

Wednesday's launch was the 335th mission of the Long March rocket series.

 

[samsara]

The Final BeiDou-3 launch is rescheduled for Tuesday, 23 June 09:36-10:31 BJT.

The CZ-3B / G2 carrier rocket will remain be launched from Xichang Satellite Launch Center in Sichuan.

https://twitter.com/x/status/1274398592778883073

 

[JSCh]

Breaking !!

林晓弈
14分钟前 来自 微博视频
今天10时59分左右，快舟一号甲运载火箭携带着银河航天的5G试验卫星成功起飞。
Today at around 10:59, KZ-1A rocket successfully lift off with Galaxy Space's 5G experimental satellite.

Update:

China Aerospace
9 minutes ago
[The “Kuaizhou FuQiangfu” rocket successfully launched GalaxySpace first satellite] At 11:02 on January 16, 2020, the commercially labelled as "FuQiangfu" KZ-1A-Y9 carrier rocket was launched at The Jiuquan Satellite Launch Center using single rocket single satellite method to send the first satellite of GalaxySpace into a predetermined orbit, and the launch mission was a complete success. This is the first launch of Kuaizhou rocket in 2020. The first satellite of GalaxySpace launched by FuQiangfu is a low-orbit broadband communications satellite that is independently developed by GalaxySpace(Beijing) Technology Co., Ltd. and benchmarks at international advanced level. The satellite uses communication frequency bands such as Q/V and Ka, and has a transparent transmission capability of 10Gbps. It can provide users with broadband communication services through satellite terminals. After the satellite enters orbit, relevant technical and business operation verification will be carried out in orbit.

科技日报
今天 10:47 来自 微博 weibo.com
【我国首套小功率霍尔电推进系统完成在轨测试】记者21日从中国航天科技集团五院502所获悉，该所自主研发的国内首套小功率霍尔电推进系统，近日在银河航天（北京）科技有限公司首发星上在轨点火成功，标志着我国首次实现小功率霍尔电推进系统的在轨应用。（科技日报记者 付毅飞）O我国首套小功率霍尔电推进系统完成在轨测试

Science and Technology Daily
Today at 10:47 from Weibo

[China’s first low-power Hall electric propulsion system completed on-orbit test]
On the 21st, the reporter learned from the 502th Institute of China Aerospace Science and Technology Corporation, the first domestic low-power Hall electric propulsion system independently developed by the Institute has recently been successfully launched in-orbit on GalaxySpace (Beijing) Technology Co., Ltd.'s satellite, marking the first time that China has realized the application of low-power Hall effect thruster propulsion system in orbit. . (Science and Technology Daily reporter Fu Yifei)

The GalaxySpace's satellite was launched on January 16 this year. It is equipped with a low-power Hall electric propulsion system with a rated power of 215 watts and a rated thrust of 10 mN. At 21:44:37 on June 15, the system successfully ignited in-orbit for the first time. As of June 17, a total of 8 ignitions were performed in-orbit, with a cumulative ignition duration of more than 10,000 seconds. The system is directly market-oriented to small satellite applications, and has the characteristics of small size, light weight and flexible application, which is in line with the current international aerospace application trends. This is also the first successful in-orbit application of a domestic electric propulsion system on a commercial satellite.

 

[samsara]

The Final BeiDou-3 launch is rescheduled for Tuesday, 23 June 09:36-10:31 BJT.

The CZ-3B / G2 carrier rocket will remain be launched from Xichang Satellite Launch Center in Sichuan.

https://twitter.com/x/status/1274398592778883073

中国重新启动北斗三号最后一颗全球组网卫星发射任务，2020年6月23日择机发射！2020年6月16日推迟执行的北斗三号最后一颗全球组网卫星发射任务相关技术问题已排除，任务重新启动，将于2020年6月23日择机发射。
via： @CCTV
#北斗三号 #BeiDou #BDS

China has resumed the launch of the BeiDou-3's last global networking satellite, which will be launched on Tuesday, 23 June. Technical problems related to the earlier scheduled launch of the final BeiDou-3 satellite, which was postponed on June 16, have been eliminated, and the mission will be launched on 23 June.
Via: @China Central Television (CCTV)
#BeiDou #BDS

https://twitter.com/x/status/1275032522821419009

The possible LIVE coverage of the launch:

Remote camera 远机位：
https://newscnchwc.v.cdn20.com/news/newslive01_1/index.m3u8

Near camera 近机位：
https://newscnchwc.v.cdn20.com/news/newslive08_1/index.m3u8