Tag: Long March 3B Carrier Rocket

#CNSA #ChinaNationalSpaceAdministration #国家航天局 |#BRI #March2024 |#西昌衛星發射中心 #XichangSatelliteLaunchCenter the advance iconic #ChangZheng3B #LongMarch3B launches  Advance Internet high orbiting- Satellite Internet High Orbit Satellite 01  #Satellites…..  #ASummary 

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On the 29th February  2024 in  CNSA _China National Space Administration -China – People’s Republic of China 2103  hours Hong Kong –Beijing Time China- People’s Republic of China launch the Chang Zheng- Long March 3B Carrier Rocket carrying the satellite Internet high-orbit satellite 01 was launched from Station 2 of the Xichang Satellite Launch Center, sending the satellite into the geosynchronous transfer orbit.

Satellite Internet High Orbit Satellite 01 is a large high orbit communication satellite developed by the Communications and Navigation Department of the Fifth Academy of China Aerospace Science and Technology Corporation.

Chang Zheng- Long March 3B Carrier Rocket is a medium-sized liquid bundled launch vehicle developed by the First Academy of China Aerospace Science and Technology Corporation. It adopts a three-stage and a half configuration, consisting of a core first stage, a core second stage, a core third stage and four boosters. Except for the main power of the core third stage, which uses liquid hydrogen/liquid oxygen propellant, the main power of the other stages all uses dinitrogen tetroxide/uniform dimethyl hydrazine propellant. Currently, the carrier rocket is in use in the enhanced type (CZ-3B/E) modified to type 2, type 3, type 3Z, and type 5. Among them, type 3 (CZ-3B/G3) is the model with the strongest carrying capacity. , 56.326 meters long, with a maximum core diameter of 3.35 meters, a fairing diameter of 4 meters, a take-off mass of 458.97 tons, and a standard geosynchronous transfer orbit capacity of 5.55 tons.

This rocket is the second rocket in the Chang Zheng- Long March 3B Carrier Rocket series of rocket reliability and carrying capacity improvement projects. It has made five technical improvements, including improving operational convenience and changing engine technology to improve production efficiency. In 2024, the Changsha triple-A series rockets will usher in a new round of high-density launches.

This launch is the first launch of the ” Chang Zheng- Long March 3B Carrier Rocket in 2024, the third orbital space launch of the Xichang Satellite Launch Center Xichang Launch Site, China’s 10th launch, and the world’s 40th launch. This launch is the 94th launch of the “Chang 3B” rocket in total. Since the 68th launch of the ” Chang Zheng- Long March 3B Carrier Rocket ” rocket on June 23, 2020 (Yao 68/”Beidou 3″ GEO-3), The Rockets have won 27 consecutive games. At the same time, this launch is the 510th launch of the “Long March” series of rockets. Since the successful first flight of the ” Chang Zheng- Long March 3B Carrier Rocket ” (the 331st launch of the “Long March” series of rockets), the “Long March” series of rockets have achieved 180 consecutive victories!

Images and visuals are from their Respectives CMS China Manned SpaceCNSA-China National Space Administration

#CNSA #ChinaNationalSpaceAdministration #国家航天局 |#BRI #Decemberr2023 |#西昌衛星發射中心 #XichangSatelliteLaunchCenter the advance iconic #ChangZheng3B  #LongMarch3b    launches  the World’s leading Advance #Beidou 3  #NavigationSatellites  #Satellite  group 57th 58th  ….

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On the 26th  December 2023 in  CNSA _China National Space Administration -China – People’s Republic of China 1126 hours Hong Kong –Beijing Time China- People’s Republic of China launch the Chang Zheng – Long march 2D  Carrier Rocket launching from station form Xichang Satellite Launch Center Sichuan Province….. In which中国 successfully launched the successfully launched the 57th and 58th Beidou navigation satellites at the Xichang Satellite Launch Center. After this group of satellites enter the network, they will further improve the reliability and service performance of the Beidou system and lay the foundation for the design of the next generation of Beidou satellites. Like China Aerospace!

Using the Long March 3B carrier rocket and the Yuanzheng 1 upper stage at the Xichang Satellite Launch Center…..  58 Beidou navigation satellites….. This group of satellites is a medium earth orbit satellite. It is the first group of MEO satellites launched after the completion and opening of my country’s Beidou-3 global satellite navigation system. After entering orbit and completing on-orbit testing, it will be connected to the Beidou satellite navigation system…..

This group of satellites is a medium earth orbit satellite. It is the first group of MEO satellites launched after the completion and opening of my country’s Beidou-3 global satellite navigation system. After entering orbit and completing on-orbit testing, it will be connected to the Beidou satellite navigation system.

Compared with the previous MEO network satellites, this group of satellites has further upgraded their functional performance in terms of global short message communication capacity, satellite-borne atomic clock technology, and payload intelligence. After being connected to the network, the reliability and service performance of the Beidou system will be further improved. , is of great significance to support the stable operation and large-scale application of the system, and lays the foundation for the design of the next generation of Beidou satellites.

The Beidou navigation satellite and supporting launch vehicle launched this time were jointly developed by the China Academy of Space Technology and the China Academy of Launch Vehicle Technology, both affiliated to China Aerospace Science and Technology Corporation. This is the 504th flight of the Long March series of launch vehicles…

Images and visuals are from their Respectives CMS China Manned Space  CNSA-China National Space Administration

#CNSA #ChinaNationalSpaceAdministration #国家航天局 |#BRI #November2023 |#西昌衛星發射中心 #XichangSatelliteLaunchCenter the advance iconic #ChangZheng3B #LongMarch3B  launches advance #ChinaSat6E #TelecommunicationSatellite 8K ultra-high-definition #Satellite ….

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On the 9th November 2023 in  CNSA _China National Space Administration -China – People’s Republic of China 0403  hours Hong Kong –Beijing Time China- People’s Republic of China launch the Chang Zheng – Long march 3B  Carrier Rocket launching from station form Xichang Satellite Launch Center Sichuan Province….. in which中国 successfully launched the ChinaSat 6E satellite# At 19:23 on November 9, the Long March 3B carrier rocket lifted the ChinaSat 6E satellite into space at the Xichang Satellite Launch Center, and then sent the satellite into the predetermined orbit. The launch mission was achieved A complete success.


The ChinaSat 6E satellite was developed by the Fifth Academy of China Aerospace Science and Technology Corporation. It adopts the Dongfanghong 4 enhanced satellite platform independently developed by my country. The satellite is equipped with C, Ku and other multi-band broadcast communication payloads, and is the first to use the domestic No. Fourth generation digital transparency processing technology. This satellite is my country’s new generation of dedicated transmission satellite for radio and television. It will succeed the ChinaSat 6B satellite business and undertake the mission of radio and television broadcasting. At the same time, the satellite will realize the on-orbit demonstration application of my country’s fourth-generation digital transparent processing technology and Ku high-throughput payload for the first time.


The Long March 3B carrier rocket is developed by the First Academy of China Aerospace Science and Technology Corporation. This rocket is the first application of the special development and implementation of the “double improvement” of the Changsanjia series model’s carrying capacity and reliability, which is a milestone in the development of the model. The geostationary transfer orbit rocket carrying capacity of this rocket reaches 5.55 tons. The whole rocket has a total of 74 improvements, including 52 first-flight improvement projects. This mission is developed and organized and managed based on the first-flight model.


After completing the on-orbit test, the ChinaSat 6E satellite will be handed over to China Satcom, a subsidiary of China Aerospace Science and Technology Corporation, for operation and management. It is planned to be located at 115.5 degrees east longitude. Its radio and television resources mainly cover China, Southeast Asia, Australia and other regions, and its communication resources mainly cover China’s land and territorial waters, Central Asia and South Asia. It will provide important support for the construction of the “Belt and Road”, new infrastructure construction and the construction of Digital China.
This launch is the 496th launch of the Long March series of launch vehicles.

As a “new star” for broadcasting, Vimicro’s 6E satellite can not only provide services for my country’s central and local 95 channels of satellite TV and 213 channels of digital audio broadcasting, but also expand satellite functions with a number of “new” capabilities, adding 8K ultra-high-definition High-definition business, user viewing range and user viewing quality will be greatly improved, helping my country’s radio and television broadcasting industry to flourish.



According to the designer of the ChinaSat 6E satellite from the Fifth Academy, in order to meet users’ high requirements for satellite coverage performance indicators, the development team adopted a variety of methods to reduce surface errors and improve antenna radiation characteristics; it also adopted power synthesis technology to meet the requirements for 8K ultra-high definition. Video transmission business requirements. At the same time, the development team configured four high-frequency bandwidth channels for the satellite, which increased the load power and significantly improved the data transmission rate. In addition, the current C-band continuous wave maximum output power traveling wave tube amplifier is used, which increases the power of the ChinaSat 6B satellite by 31%. For radio and television broadcasting projects, we will continue to improve the robustness of the platform by improving satellite transfer orbit autonomy and fault recovery capabilities, and selecting the best key products

[ Chang Zheng- Long March 3B carrier Rocket, carrying capacity digs 50kg geostationary transfer orbit carrying capacity increased from 5.5 tons to 5.55 tons] On November 9, the Long March 3B carrier rocket lifted the ChinaSat 6E satellite into space, and the mission was a complete success. The “upgraded version” of the Changsha 3A series rocket successfully made its first flight, achieving the goal of “double improvement”. The Long March 3B geostationary transfer orbit carrying capacity has been increased from 5.5 tons to 5.55 tons; there are 74 technical improvement projects, including 52 first flight improvement projects; the improvements involve all rocket systems.


According to Zhang Tao, deputy chief designer of the Changsanjia series rockets, the rocket has also helped improve the rocket’s carrying capacity by 50% by overall optimizing the flight trajectory plan, canceling the terminal velocity correction, optimizing the pre-cooling flow of the three-stage rocket engine, and canceling the booster cylinder in the engine. Kilogram.

Images and visuals are from their Respectives CMS China Manned SpaceCNSA-China National Space Administration

#CNSA #ChinaNationalSpaceAdministration #国家航天局 |#BRI #August2023 |#西昌衛星發射中心 #XichangSatelliteLaunchCenter the advance iconic # 长征三号乙 #ChangZheng3B #LongMarch3B launches the #LandExploration No. 4 01 #Satellite.. #AGallery

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On the 13th  August 2023  in  CNSA _China National Space Administration -China – People’s Republic of China 0126 Morning hours Hong Kong –Beijing Time China- People’s Republic of China launch the Chang Zheng – Long march 3B  Carrier Rocket launching from station form Xichang Satellite Launch Center Sichuan Province……. The Chang Zheng Long March 3B carrier rocket ignited and blasted off at the Xichang Satellite Launch Center, and then successfully sent the Land Exploration No. 4 01 satellite into the predetermined orbit and launched The mission was a complete success.

The Land Exploration No. 4 01 satellite was developed by the Fifth Academy of China Aerospace Science and Technology Corporation to meet the application needs of disaster prevention and mitigation, earthquake monitoring, land and resources survey, ocean, water conservancy, meteorology, agriculture, environmental protection, forestry and other industries in my country and surrounding areas.

长征三号乙 The Chang Zheng- Long March 3B carrier rocket was developed by the First Academy of Aerospace Science and Technology Corporation, which adopted the unified configuration design idea of ​​the Chang Zheng -Long March series rockets, and the instrument cabin is in the state of double laser inertial component hoisting.

This launch is the 483rd launch of the Long March series of launch vehicles.

Images and visuals are from their Respectives CMS China Manned SpaceCNSA-China National Space Administration

#CNSA #ChinaNationalSpaceAdministration #国家航天局 |#BRI  #June2023 |#西昌衛星發射中心 #XichangSatelliteLaunchCenter  the advance iconic #长征三号乙火箭, #ChangZheng3B #LongMarch3B launch vehicle landing zone control technology has made a further breakthrough!

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On the 17th May  2023  in  CNSA _China National Space Administration -China – People’s Republic of China At 1049 hours Hong Kong –Beijing Time China- People’s Republic of China launch the Chang Zheng – Long march 3B  Carrier Rocket launching from station form Xichang Satellite Launch Center Sichuan Province…..Deploying Geo Stationary  the World’s Number one leading Beidou3 Series  56th Navigation Satellite 

The 56th Beidou navigation satellite was successfully sent into the predetermined orbit, and the launch mission was a complete success. This launch is the 473rd flight of the Long March series of launch vehicles. (China Academy of Launch Vehicle Technology)​​​​

[Launch vehicle landing zone control technology has made a further breakthrough! 】

On May 17th 2023, the mission of launching the 56th Beidou navigation satellite by the Long March 3B carrier rocket developed by the Rocket Academy was a complete success. Another highlight of this mission is the verification test of the landing area control technology – the rocket booster is equipped with a parachute landing area control system. Strategic maneuvering flight, accurately guiding the booster separation body to the predetermined “parachute landing area”, successfully reducing the separation body landing area by 80%. The carrying test was a complete success, which laid the foundation for the subsequent engineering application of booster parachute control technology.

 
The booster parachute landing area control technology is a technology independently developed by the Rocket Academy to improve the safety of the rocket sub-stage wreckage landing area at the inland launch site.
When the booster separates and falls to the predetermined altitude, the parachute landing area control system installed in the nose cone of the booster will automatically start, and the manoeuvrable flight will be realized through the controllable parafoil, and the booster separation body will be guided to the predetermined area landing.


Zhang Yipu, chief designer of the rocket’s Long March 3A series of launch vehicles, introduced that during this flight, the main optimization of the booster parachute landing zone control system came from the electrical subsystem. On the one hand, it has carried out a unified design with the control system of the rocket fairing parachute landing zone, and on the other hand, it has also carried out system-level integration with the electrical equipment of the parachute subsystem, achieving a weight reduction of 30 kg and effectively improving the practical level of the product.
Based on the development concept of “rapid iteration and combination of flight transformation”, the development team has carried out a series of research on the basis of the previous pre-research results.
Overcome: the overall design technology of parachute landing area control, the overall design technology of large-area controllable parafoil, the integrated navigation and positioning technology under high dynamics, the separation technology of nose cone-parafoil combination, and a series of key technologies, combined with the control of the landing area The actual situation has formulated a reasonable and feasible “parachute landing zone” setting strategy and homing control strategy. After multiple rounds of iterative optimization and step-by-step loading verification, the controllable and accurate landing of the booster separation body is gradually realized…

After the analysis of the test data and the on-site survey of the wreckage, the control system of the parachute landing area maneuverer and flew according to the established homing strategy, and accurately guided the booster separation body to the predetermined “parachute landing area”, successfully reducing the area of ​​the separation body landing area by 80% %. The carrying test was a complete success, which laid the foundation for the subsequent engineering application of booster parachute control technology.

In addition to the booster parachute landing zone control technology, the development team is also looking for countermeasures in multiple dimensions to reduce the impact of rocket separation on the landing zone. Active control of separation body return based on grid rudder, control of fairing landing zone based on parachute, etc..

Images and visuals are from their Respectives CMS China Manned SpaceCNSA-China National Space Administration