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…
At 1106 Hours Hong Kong SAR- Beijing Time 20th May 2024 , China- People’s Republic of China- CNSA –China National Space Administration Successfully launched Chang Zheng – Long March 2D Yao 98 Carrier Rocket ignited and took off at the Taiyuan Satellite Launch Center Shanxi Province.. Successfully launch the Beijing-3C satellite the constellation was launched and the four satellites successfully entered the scheduled orbit. The launch mission was a complete success. This mission is the 523rd flight of the Long March series of launch vehicles.
According to the Shanghai Eighth Institute, this rocket is equipped with a one-stage landing area control system, that is, the grid rudder control system. In the re-entry and return section of the first sub-stage of the rocket, the flight guidance of the first sub-stage is carried out through precise control of the rudder movements. In many past flight tests, this system has achieved precise landing zone control, perfectly unlocked the new skill of “landing where you point” for the first sub-stage of the rocket, and ensured the safety of the landing zone environment time and time again. It is worth mentioning that this time the grid rudder adopts a swept-back rudder surface with the entire rudder curved backwards. The aerodynamic performance is significantly improved, which can further improve the control ability of the grid rudder; for the first time, a pneumatic pin puller is used to replace It replaces the traditional pyrotechnic pin puller, achieves low impact, and provides technical reserves for subsequent reusable rockets.
The Long March 2D carrier rocket that performed this mission is a room-temperature liquid two-stage carrier rocket developed by the Shanghai Aerospace Administration. It has a take-off thrust of about 300 tons and a corresponding capacity of 1.3 tons for a 700-kilometer sun-synchronous circular orbit. It has the capability to operate in Jiuquan, Taiyuan, The three major satellite launch centers in Xichang implement single- and multi-satellite launch capabilities with different orbital requirements.
“Long March 2D” is a medium-sized two-stage room-temperature liquid launch vehicle developed by the Eighth Academy of China Aerospace Science and Technology Corporation. It is mainly used for low-Earth orbit (LEO) and sun-synchronous orbit (SSO) launch missions. The arrow is about 41 meters long (equipped with a standard 3.35-meter-diameter fairing), with both primary and secondary diameters of 3.35 meters, a take-off mass of 250 tons, a take-off thrust of 302 tons, a low-Earth orbit (LEO) capacity of 4 tons, and a 700-kilometer circle. It has a sun-synchronous orbit (SSO) capacity of 1.3 tons.
This launch is a four-satellite launch with one rocket. In order to maximize the use of the space inside the satellite fairing, the model adopts a “staggered parallel” layout of two high and two low according to the shape of the satellite. At the same time, the Chang Zheng – Long March 2D Yao 98 Carrier Rocket test team also cooperated with the satellite team to The launch site carries out a number of special reviews such as satellite safety clearance, dynamic displacement, satellite-rocket distance when the satellite sail is deployed, and satellite-rocket joint operation to ensure the complete success of the mission.
The four satellites of the “Beijing-3C” constellation were developed by the Aerospace Dongfanghong Satellite Co., Ltd. of the Fifth Academy of China Aerospace Science and Technology Corporation. They are high-resolution optical remote sensing satellites. This type of satellite is developed based on a low-cost, high-performance satellite platform. It has a panchromatic resolution of 0.5 meters and a multispectral resolution of 2 meters. It has the smallest mass among the current practical (operational) 0.5-meter high-resolution optical remote sensing satellites.
The satellite is equipped with a high-performance GPU (graphics processing unit), which not only supports real-time processing of on-orbit remote sensing images, but also supports the operation of artificial intelligence algorithms such as deep learning. At the same time, the satellite supports autonomous mission planning on board, and can independently complete imaging mission planning, image acquisition, data compression, on-orbit processing, image downloading, etc. In addition, the satellite has specially designed a high-speed injection channel for APP in-orbit injection, which supports APP installation, operation, uninstallation, update and other operations on orbit.
The “Beijing-3C” constellation is a commercial remote sensing satellite constellation invested and launched by 21st Century Space Technology Application Co., Ltd. After the constellation is put into use, the four satellites will operate in an equal-phase network to meet the observation needs of daily revisits in any area around the world. The imaging information can be used in land and resources management, agricultural resource surveys, ecological environment monitoring, comprehensive urban applications and other fields.
This mission has a customized carrying design based on the shape of the satellite, using a “staggered-level parallel” layout of two highs and two lows. At the same time, this rocket is equipped with a sub-stage landing area control system (grid rudder control system). This time, the grid rudder adopts a swept-back rudder surface with the entire rudder curved backwards. The aerodynamic performance is significantly improved, which can further improve the control ability of the grid rudder. For the first time, a pneumatic pin puller is used to replace the traditional pyrotechnic puller. The pin device achieves low impact and provides technical reserves for subsequent reusable rockets.
This launch is the 90th launch of the Long March-2D carrier rocket, the 211th launch of the Long March series of launch vehicles developed by Shanghai Aerospace Corporation, and the 523rd launch of the Long March series of launch vehicles. The satellite launched this time was developed by the Aerospace Dongfanghong Satellite Co., Ltd., which is affiliated to the Fifth Academy….
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.
At 0324 Hours Hong Kong SAR- Beijing Time on An early morning of 6th December 2023 , China- People’s Republic of China- CNSA –China National Space Administration CASC China Aerospace Science and Technology Corporation Successfully launched the New Next Generation ChinaRocket Co. LTD Smart Dragon – Jielong three Carrier Rocket Yao 2 carrier rocket at the in the waters near Yangjiang, Guangdong Province, the Smart Dragon Carrier rocket successfully launched from a sea borne mobile launch platform….. This launch is the world’s 200th space launch in 2023, China’s 57th, the third this month, and the first for the Jielong 3 carrier rocket…
Launching a satellite Internet technology test satellite… At 3:24 on December 6th, 2023, Beijing time, my country’s Taiyuan Satellite Launch Center used the Jielong 3 carrier rocket in the waters near Yangjiang, Guangdong to successfully launch a satellite Internet technology test satellite. , the satellite successfully entered the scheduled orbit, and the launch mission was a complete success. This mission is the second flight of the Jielong 3 carrier rocket…
银河航天 Galaxy Space – is located 3rd Floor, Building B, Baosheng Plaza, No. 8 Heiquan Road, Haidian District, Beijing, China, People’s Republic of China… Galaxy space- Aerospace is One of China, People’s Republic of China’s leading satellite Internet solution provider and satellite manufacturer, and the first unicorn company in my country’s commercial aerospace field. The company is committed to independent research and development and low-cost mass production of communication payloads, core single machines, and satellite platforms. It has built internationally leading supporting development capabilities for communication payloads, core single machines, and solar wings in Xi’an, Chengdu, and Beijing, and is also building in Nantong. The new generation of satellite intelligent manufacturing factories has achieved mass production capabilities of hundreds of satellites.
【”Space Carpet”! Galaxy Aerospace] According to Xu Ming, founder, chairman and CEO of Galaxy Space , the new generation of communication satellites being developed by Galaxy Aerospace looks like a “space flying carpet”, with both The communication antenna also has a solar chip that can convert solar energy into satellite energy. It is a communication satellite that integrates a phased array antenna and a solar wing. The key technology is called “wing array integration”.
The antenna is the core part of the satellite communication system and a key factor in determining the quality of signal transmission. Using large antennas can increase the gain of signal reception and transmission, thereby improving communication quality. The “wing array integrated” satellite can have a large antenna area and a powerful energy system, which can make the satellite more powerful when transmitting signals. It will be used to support the broadband communication needs of future mobile phones directly connected to satellites.
At present, Galaxy Aerospace has completed key technical research on the two-dimensional deployment of the “Wing Array Integrated” satellite. Generally speaking, the satellite’s antenna or solar wing generally only expands in one direction (such as horizontally) when unfolded. The so-called two-dimensional expansion means that the satellite’s antenna and solar wing must be deployed in an orderly manner in both the horizontal and vertical directions. . In view of this configuration in which the size of the satellite platform and the phased array are reversed, the traditional satellite-arrow connection, compression and separation technology cannot be used. The technical team designed and completed an integrated release plan; for extremely large-area arrays, high deployment accuracy and deployment stiffness are required In order to meet the large requirements, the technical team has broken through technical challenges such as folding and compaction, two-dimensional orderly deployment in orbit, and slowing down the impact of deployment, and completed the development of key mechanisms suitable for the deployment of satellite giant antennas and solar wing integrated arrays, and will Continue to carry out research on key technologies such as wing array integrated efficient heat dissipation and distributed power supply.
Facing the future, Galaxy Aerospace will accelerate the research on key core technologies such as phased array antennas, on-board large energy sources, and digital processing loads, and work with the upstream and downstream of the industrial chain to tackle key problems to help the development of my country’s aerospace information industry and the construction of a powerful aerospace nation.
Images and visuals are from their respectives银河航天 Galaxy Space
