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Core Points - The China Aerospace Science and Technology Corporation has led the development of two international standards recently published by the International Organization for Standardization (ISO) [1] - A total of 30 international standards in the aerospace field have been published under China's leadership, with a cumulative total of 38 standards either published or in development [1] Group 1 - The first standard, "Aerospace Systems - Launch Window Estimation and Collision Avoidance" (ISO 21740:2025), outlines requirements for launch window analysis and safety launch timing identification, as well as a collision avoidance risk assessment matrix [1] - This standard is applicable to collision risk analysis between newly launched objects and any space objects along the flight path, facilitating the determination of optimal launch windows and timing [1] - The standard was jointly proposed by China, the United States, France, and Japan, with the China Aerospace Standardization Research Institute responsible for the drafting [1] Group 2 - The second standard, "Aerospace Systems - Requirements for Stable Operation of Satellite Attitude and Orbit Control Systems" (ISO 16615:2025), defines the stable operation of satellite attitude and orbit control systems in orbit [2] - It establishes principles and requirements for constructing the stable operation capability of satellite attitude and orbit control systems based on influencing factors [2]