On the 1st August 2024 schedule to launch CNSA _China National Space Administration -China – People’s Republic of China 2114 Hours Hong Kong –Beijing Time China- People’s Republic of China…. at the Xichang Satellite Launch Center, Sichuan Province….. at the No. 2 site of the Xichang Launch Center in China, the “Long March 3B” carrier rocket carrying the Satellite Internet High-orbit Satellite 02 was ignited and launched, and the satellite was sent to the geosynchronous transfer orbit (GTO).
The “passenger” of this mission, Satellite Internet High-orbit Satellite 02, was developed by the 5th Academy of China Aerospace Science and Technology Corporation and is the successor to Satellite Internet High-orbit Satellite 01.
The Long March 3B is a medium-sized liquid carrier rocket developed by the First Academy of China Aerospace Science and Technology Corporation, with a three-and-a-half-stage configuration. At present, the Long March 3B is in use in the enhanced version (CZ-3B/E), of which the modified version (CZ-3B/G2) is the most powerful model. The modified version 2 rocket is 56.326 meters long, with a maximum core stage diameter of 3.35 meters, a takeoff mass of 458.97 tons, and a maximum capacity of 5.55 tons for a standard geosynchronous transfer orbit (GTO). This launch mission was launched during the rainy season in Xichang. Based on the various waterproof designs of the rocket, the model team made full use of multiple protections such as anti-condensation air conditioning and moisture-proof sand, and took waterproof and moisture-proof measures.
This mission is the 97th launch of the Long March 3B rocket. Since the successful launch of the Long March 3B Yao 68 (68th) on June 23, 2020, the rocket has achieved 30 consecutive victories. In 2024, the Long March 3A series of rockets will once again enter a high-density launch period. So far this year, the Long March 3B has carried out 4 launch missions.
This launch is the 10th launch from the Xichang Launch Center in 2024, the 34th launch in China and the 138th launch in the world. At the same time, this launch is also the 529th launch of the “Long March” series of rockets.
On the 30th May 2024 in CNSA _China National Space Administration -China – People’s Republic of China 2012 hours Hong Kong –Beijing Time China- People’s Republic of China launch the Chang Zheng Long March 3B carrier rocket successfully launched the Pakistan multi-mission communications satellite….. Satellite at the Xichang Satellite Launch Center, Sichuan Province
At 20:12 on May 30, the Long March 3B carrier rocket ignited and took off from the Xichang Satellite Launch Center, and then successfully sent the Pakistan multi-mission communications satellite into the predetermined orbit. The launch mission was a complete success. The Pakistan multi-mission communications satellite was developed by the Fifth Academy of China Aerospace Science and Technology Corporation and uses the Dongfanghong-4 enhanced communications satellite platform.
Pakistan’s multi-mission communications satellite ① Dongfanghong-4 enhanced communications satellite platform ② Equipped with 9 antennas and 48 C, Ku, Ka, L and other multi-band transponders ③ Take-off weight 5,400 kg ④ Fixed in geosynchronous orbit 38.2 degrees east longitude ⑤ Service life 15 years
The satellite has a service life of 15 years and will be stationed above the equator at 38.2 degrees east longitude in the geosynchronous orbit, covering Pakistan and surrounding areas. After in-orbit operation, the satellite will provide users in the region with a variety of services such as television, radio, regional enhanced communications, high-throughput broadband, and satellite-based enhanced navigation. The Long March 3B carrier rocket was developed by the First Academy of China Aerospace Science and Technology Corporation. This launch is the 524th launch of the Long March series of carrier rockets…
On the 9th May 2024 in CNSA _China National Space Administration -China – People’s Republic of China 0943 hours Hong Kong –Beijing Time China- People’s Republic of China launch the Chang Zheng Long March 3B carrier rocket successfully launched the “Smart Skynet-1” 01A and 01B double stars ignited and took off at the No. 2 station of the Xichang Launch Site, sending the double star combination to the medium-Earth transfer Orbital (MTO). Satellite at the Xichang Satellite Launch Center
Smart Skynet 1″ 01A and 01B satellites were developed by the Eighth Academy of China Aerospace Science and Technology Corporation (Shanghai Aerospace Technology Research Institute). They are my country’s first medium-orbit broadband communication satellite group, including the technology verification satellite A and the test satellite B. Star A is equipped with a multi-beam high-speed microwave link, an inter-satellite two-way laser link and an onboard digital processing and forwarding platform; Satellite B is equipped with an inter-satellite laser link trial load, and the dual satellites in orbit mainly carry out flexible exchange of satellite-ground and inter-satellite information. Core technology verification; carry out verification of key satellite platform technologies such as normal large heat flux density heat dissipation, high-stable continuous yaw manoeuvre attitude control, and low fuel consumption orbit position maintenance correction.
The “Smart Skynet” communication satellite constellation is a medium-orbit pan-synchronous orbit space-based network solution originally proposed by Tsinghua University. It is composed of 8 medium-orbit broadband communication network satellites and is deployed in a medium-earth orbit (MEO) with an altitude of 20,000 kilometers. ), forming a communication constellation covering the world, and can be expanded to 16 satellites (two groups), 32 satellites (four groups) and other coverage networks as needed. After the constellation is completed, it can jointly build a unified space-based 6G network with low-orbit satellite Internet and high-orbit satellite Internet.
“Smart Skynet” is a medium-orbit pan-synchronous orbit space-based network solution originally proposed by Tsinghua University. It takes 8 medium-orbit broadband communication network satellites as a group, deployed at 20,000 km altitude, forming a global communications constellation, and can be expanded to 16 satellite (two sets) and 32 satellite (four sets) as needed.
After the completion of the constellation, it will realize a personalized broadband network service without blind spot coverage worldwide, and can jointly build a unified space 6G network with low-orbit satellite Internet and high-orbit satellite Internet, realizing the access of all kinds of users in the whole scene and the whole area.
Smart Skynet No.1 01 satellite as China’s first medium-orbit broadband communication satellite, including A-star for technical verification and test B-satellite, was developed by China Aerospace Science and Technology Group Co., Ltd. Shanghai Institute of Space Technology. A-satellite is equipped with multi-beam high-speed microwave link, inter-star bi-directional laser link and on-board digital processing forwarding platform. B-satellite is equipped with inter-star laser link test load. In orbit, it mainly carries out the core technology verification of star-ground and inter-stellar information flexible interaction. It carries out key technology verification of satellite platforms such as normal large heat flow density heat dissipation, high stable continuous yaw motor posture control, and low fuel consumption track position maintenance correction.
After the launch of Smart Skynet 1 01 satellite, it will carry out dynamic beam hopping on-demand service, high-speed laser link, and secure network protocol through technological innovations such as dynamic beam hopping, high-speed laser link, and secure network protocol. It will meet users’ casual access, Internet business, ground cell business, etc.
After operating in orbit, the satellite will also carry out typical scene application demonstrations such as direct connection of national and Antarctic scientific research stations and real-time return of low-orbit satellite data, laying a solid foundation for building an innovative experimental platform for space network and exploring the application model of smart skynet industry.
Chang Zheng – Long March 3B Carrier Rocket is a medium-sized liquid launch vehicle developed by the First Academy of China Aerospace Science and Technology Corporation (China Academy of Launch Vehicle Technology). It adopts a three-stage and semi-configuration, consisting of a booster, a core first stage, a core second stage, and a core third stage. In addition to the core three-stage main power which uses hydrogen-oxygen propellant, the other stages’ main power uses dinitrogen tetroxide/uniform dimethylhydrazine propellant. The arrows currently in use are enhanced types, including Type 2 (G2), Type 3 (G3), Type 3Z and Type 5 (G5). The rocket is mainly used for medium- This “Chang Zheng – Long March 3B” Carrier rocket adopts the Ka-band space-based measurement subsystem for the first time. Compared with the previous S-band system, the transmission rate is significantly improved. Starting from this launch, the “Chang Sanjia” series of rockets entered a new round of high-density launches. to-high Earth orbit and deep space launch missions, with a medium-Earth transfer orbit capacity of more than 4.3 tons.
This launch is the second launch of the “Chang 3B” rocket in 2024, the seventh launch from the Xichang Launch Site, the 21st launch in China, and the 88th launch in the world. So far, China Aerospace has carried out 3 space launches into orbit in the first 9 days of May, with an average density higher than 1 launch/3 days.
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!
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.
