Li Hong – 1 Spacecraft (PH-1)

The Li Hong – 1 Spacecraft (PH-1) is designed as a platform for microgravity research, offering a foundational solution for advancements in space manufacturing, medicine, and space tourism. It serves as a scientific experiment payload platform, capable of providing a microgravity experimental environment for over 300 seconds to both domestic and international users. The spacecraft features high-reliability parachute-aerodynamic deceleration technology for its return capsule, ensuring safe landing through atmospheric re-entry and controlled deceleration. This technology involves high-precision recovery trajectory prediction, fine-grained aerodynamic and dynamic analysis of the object-parachute system across a wide speed range, and reliability modeling and comprehensive performance evaluation of the parachute deceleration system. Additionally, it incorporates precise landing point control technology for the sub-stage, a critical innovation for vertical return and reusability of rocket sub-stages. This technology utilizes real-time trajectory guidance optimization algorithms to achieve precise landing control under complex re-entry forces, thermal constraints, and high-dimensional landing terminal constraints. The Li Hong – 1 is set to evolve into an orbital-level space manufacturing spacecraft with a minimum orbital stay of 1 year and more than 10 reuses, adapted for the high-precision demands of in-orbit manufacturing. It will feature autonomous experimental manufacturing closed-loop control capabilities and high-speed space-to-ground communication links, enabling unattended and efficient operation. This will establish a space science experiment platform supporting “earth-to-space round trip, in-orbit research, sample return, and data empowerment,” capable of supporting space pharmaceuticals, drug screening, animal experiments, high-end semiconductor manufacturing, and cutting-edge scientific experiments in microgravity physics, space life sciences, and space material sciences.