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China's Space Program Thread II
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Long March carrier rocket blasts off with 14 satellites
By ZHAO LEI | chinadaily.com.cn | Updated: 2023-01-15 15:48
China launched a Long March 2D carrier rocket on Sunday morning to transport 14 satellites into space, according to China Aerospace Science and Technology Corp, the nation's dominant space contractor.
The rocket lifted off at 11:14 am at the Taiyuan Satellite Launch Center in Shanxi province and placed the satellites, including Qilu 2 and Luojia 3-01, to their preset orbits, the State-owned company said in a press release.
Long March 2D, designed and built by the Shanghai academy, is propelled by liquid propellants and has a liftoff thrust of 300 metric tons. It is capable of sending a 1.3-ton spacecraft to a sun-synchronous orbit with an altitude of 700 kilometers.
To carry the 14 satellites, which were built by seven institutes and enterprises, the rocket's designers developed a new small-satellite adapter that can be a solution to future launches tasked with carrying many small satellites, according to the company.
The launch marked the 462nd flight of the Long March rocket fleet and China's fifth rocket liftoff in 2023.
China's largest solid carrier rocket approved for sea launch
Liu Tianwen
China's largest solid carrier rocket, the Lijian-1, has been approved for launch at sea, according to the Beijing-based rocket company CAS Space.
The four-stage rocket is capable of putting a 1,500-kilogram payload into sun-synchronous orbit at an altitude of 500 kilometers, according to its developer, the Chinese Academy of Sciences.
The review committee said the scheme approved is reasonable and feasible, and main technical indicators meet the requirements of sea launch.
The rocket took its first flight on July 27, 2022, carrying six satellites and sending them into space from the Jiuquan Satellite Launch Center in northwest China.
A Lijian-1 carrier rocket carrying six new satellites blasts off from the Jiuquan Satellite Launch Center in northwest China, July 27, 2022. /China Media Group
by78
General
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The Luojia-3 01 satellite (珞珈三号01) is a remote imaging satellite. It carries a video camera (100 million pixels) that's capable of a resolution of 0.7 meter. It has advanced onboard image processing and photogrammetry capabilities, enabling the camera to perform surveys in 3D. The satellite has a high degree of autonomy, capable of intelligent mission planning and execution. It only needs to be told where to look (longitude and latitude), and it will automatically complete image acquisition and image processing and then beam the images and footage to the end user (can even send them to user's smartphone). The satellite's software can also be continuously updated and new capabilities added via remote updates.
The Luojia-3 01 satellite (珞珈三号01) is a remote imaging satellite. It carries a video camera (100 million pixels) that's capable of a resolution of 0.7 meter. It has advanced onboard image processing and photogrammetry capabilities, enabling the camera to perform surveys in 3D. The satellite has a high degree of autonomy, capable of intelligent mission planning and execution. It only needs to be told where to look (longitude and latitude), and it will automatically complete image acquisition and image processing and then beam the images and footage to the end user (can even send them to user's smartphone). The satellite's software can also be continuously updated and new capabilities added via remote updates.
by78
General
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Luojia-3 01 operates in a sun-synchronous orbit of about 500km. It's also equipped with a X-band spread spectrum measurement and control system, a X-band satellite-to-ground direct transmission system, and a Ka-band inter-satellite.
The Luojia-3 01 satellite is part of the Orient Smart Eye (东方慧眼) low-orbit remote-sensing constellation, which will eventually grow to include several hundred visible-light, hyperspectral, and radar satellites. The constellation will be built in four phases: the first phase will launch 2 optical and 4 hyperspectral satellites to form a demonstration system; the second phase launch 6 optical and 4 hyperspectral satellites to create a regional system; the third phase will launch 80 satellites to form a nationwide system; the fourth phase is to build a 200-satellite global service system by 2030.
Luojia-3 01 operates in a sun-synchronous orbit of about 500km. It's also equipped with a X-band spread spectrum measurement and control system, a X-band satellite-to-ground direct transmission system, and a Ka-band inter-satellite.
The Luojia-3 01 satellite is part of the Orient Smart Eye (东方慧眼) low-orbit remote-sensing constellation, which will eventually grow to include several hundred visible-light, hyperspectral, and radar satellites. The constellation will be built in four phases: the first phase will launch 2 optical and 4 hyperspectral satellites to form a demonstration system; the second phase launch 6 optical and 4 hyperspectral satellites to create a regional system; the third phase will launch 80 satellites to form a nationwide system; the fourth phase is to build a 200-satellite global service system by 2030.
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by78
General
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The Beiyou-1 (北邮一号) satellite. It features the 3rd-generation high-reliability integrated electronics platform developed by Tianyi Research Institute (天仪研究院) and has a design life of 3-5 years. The satellite is a long-term on-orbit platform for providing universities, scientific institutes, and commercial enterprises with extremely cost-effective science and technology verification services. The Beiyou-1 satellite is equipped with the distributed intelligent computing platform "Tiansuan Constellation" jointly developed by the team of Prof. Wang Shangguang of Beijing University of Posts and Telecommunications and Tianyi Research Institute.
The tasks of Beiyou-1 include testing and verifying the following:
Distributed spaceborne AI reasoning, spaceborne 5G core network v4, eBPF-based light-weight network elements, satellite-ground link reliability, spaceborne network protocol proxy, real-time video streaming, satellite-ground link transmission performance measurement, satellite-ground collaboration Time-series data management technology, low-orbit satellite encrypted channel data transmission technology, multi-space crowd sensing task allocation technology, "satellite-ground" link adaptive transmission technology research, space-ground collaborative IP-optical fusion networking verification experiment, low experimental verification of advanced technologies such as AI-based video streaming transmission, etc.
The Beiyou-1 (北邮一号) satellite. It features the 3rd-generation high-reliability integrated electronics platform developed by Tianyi Research Institute (天仪研究院) and has a design life of 3-5 years. The satellite is a long-term on-orbit platform for providing universities, scientific institutes, and commercial enterprises with extremely cost-effective science and technology verification services. The Beiyou-1 satellite is equipped with the distributed intelligent computing platform "Tiansuan Constellation" jointly developed by the team of Prof. Wang Shangguang of Beijing University of Posts and Telecommunications and Tianyi Research Institute.
The tasks of Beiyou-1 include testing and verifying the following:
Distributed spaceborne AI reasoning, spaceborne 5G core network v4, eBPF-based light-weight network elements, satellite-ground link reliability, spaceborne network protocol proxy, real-time video streaming, satellite-ground link transmission performance measurement, satellite-ground collaboration Time-series data management technology, low-orbit satellite encrypted channel data transmission technology, multi-space crowd sensing task allocation technology, "satellite-ground" link adaptive transmission technology research, space-ground collaborative IP-optical fusion networking verification experiment, low experimental verification of advanced technologies such as AI-based video streaming transmission, etc.
