At 1850 Hours Hong Kong SAR- Beijing Time on Spring 30th March 2023 , China- People’s Republic of China- CNSA –China National Space Administration Successfully launched the New Next Generation Long March – Chang Zheng2D carrier rocket at the Taiyuan Satellite Launch Center Shanxi Province.. successfully launched Hongtu-1 Group 01 satellites
Successfully launched Hongtu-1 Group 01 satellites into space using the Long March 2D carrier rocket at the Taiyuan Satellite Launch Center, and the satellites went smoothly Entering the predetermined orbit, the launch mission was a complete success. This group of satellites is mainly used to provide commercial remote sensing data services. This mission is the 469th flight of the Long March series of launch vehicles.
Hongtu No. 1 satellite group 01: the world’s first four-star wheel-type formation flight X-InSAR constellation! Hongtu-1 Group 01 consists of four satellites, consisting of a main star and three auxiliary satellites. It is the first X-band interferometric synthetic aperture radar (InSAR) ground imaging system flying in four-star formation in the world. This group of satellites is in orbit It constitutes the world’s first wheel-type satellite formation, in which the main star weighs about 320 kg, and the auxiliary star weighs about 270 kg.
As the first wheel-type satellite formation in the world, the four satellites are like wheels flying in space. The main star is located in the middle of the wheel, and the three auxiliary satellites are evenly distributed on the hub of the wheel. Inter-satellite communication links and phase synchronization links are used. When the distance between the auxiliary satellite and the main satellite is only a few hundred meters, the stability and space security of the satellite formation on-orbit configuration are guaranteed through precise orbit control. Compared with the traditional interference satellite system, the wheel formation has a relatively It has the advantages of stability, many interference baselines, and high mapping efficiency.
It is understood that this group of satellites has the ability to survey and map the non-polar regions of the world at a scale of 1:50,000, which can quickly and efficiently conduct high-precision surveying and mapping of global land; it has the ability to monitor deformation at the millimeter level, and can be used for the investigation of disasters such as land subsidence, subsidence, and landslides. It provides data support for prevention and control, and is a “sharp tool” for early identification of major geological hazards in complex areas; it has sub-meter-level high-resolution wide-format imaging capabilities, and can conduct high-quality imaging observations of the ground around the clock, and the overall technology has reached the international leading level. .
For the small-batch development of civil SAR satellites, Yinhe Aerospace has greatly improved the development efficiency through digital simulation, automated testing, and process optimization in the stages of satellite scheme design, whole-satellite integration, and launch site testing, and shortened the development time compared with conventional ones. more than 60%.
Through the batch development of four SAR satellites this time, Yinhe Aerospace has verified the company’s ability in the vertical integration of the industrial chain. The new commercial aerospace industry ecology accelerates the construction of space infrastructure.
Images and visuals are from their Respectives CMS China Manned SpaceCNSA-China National Space Administration