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China's First Private Companies Launched Commercial Carrier Rocket

At 13 pm on July 25, the hyperbolic Yao-1 (SQX-1 Y1) launch vehicle of Beijing Interstellar Glory Space Technology Co., Ltd. Was successfully launched from the Jiuquan Satellite Launch Center of China. Two satellites and three payloads were accurately placed in a circular orbit at a predetermined altitude of 300 km in accordance with flight sequence.



This is the third private enterprise in China to attempt to launch a launch vehicle after Beijing Blue Arrow Space Technology Co., Ltd. And 01 Space Technology Co., Ltd. The successful launch of the rocket has achieved a zero-breakthrough for China's privately-owned carrier rockets. The SQX-1 Y1 launch vehicle, with a four-stage series configuration of three solids and one liquid, is the largest and most capable private space launch vehicle in China, according to Star Glory. The mission was successful, It shows that the company has fully mastered the core technologies of hardware and software, such as overall and system integration of launch vehicle, solid and attitude-orbit control power, electrical integration, navigation guidance and control, test and launch, general assembly survey and core single aircraft, Has the launch vehicle system engineering entire process, the total factor research and development and the launch service ability, has realized the commercial pattern basic closed loop.



It is said that SQX-1 Y1 launch vehicle has made a number of innovations in terms of overall, sub-systems and single-aircraft development: 1. The compound control technology of variable sweep leading-edge grating rudder and RCS has been adopted to effectively reduce the development cost of launch vehicle and provide an advance verification for the return technology of hyperbolic 2 reusable liquid launch vehicle; The integrated technology of attitude-orbit control and upper stage hydrodynamic device is adopted to realize the multi-mode attitude control of the whole mission profile and the long-time and high-precision power support of the last stage. The integrated design of electrical system intelligence is adopted, and the core single machine center No. 1 adopts full programmable SOC solution, modularization design and large capacity data fast throughput design, which integrates rich communication interface and large data function. The flight control software based on large-scale embedded multi-task real-time operating system is adopted, which improves the efficiency of software design and development and possesses the function of intelligent control algorithm. The design scheme of network service on rocket is adopted to realize simultaneous access of multiple devices, device discovery, data distribution and fast access. At the same time, the solid-liquid combined with multi-stage iterative guidance technology can meet the requirements of high-precision orbit. Quaternion control scheme and fault-tolerant design for arbitrary large attitude disturbance improve flight reliability. Long-range wireless measurement and transmission control technology can meet the requirements of all-weather and unsupported rapid launch of rockets. In addition, the rocket's simple ground launch support system can effectively reduce the cost of research and development, simplify the launch process.

The launch carried two satellites developed by Aerospace Engineering Development Co., Ltd. And Beijing University of Technology, carrying a watermelon pioneer payload, a Star Age-6 payload and an experimental verification payload.

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