正式发布！我国主导制定两项国际标准

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: Launch Window and Collision Avoidance - The standard titled "Aerospace Systems - Launch Window Estimation and Collision Avoidance" (ISO 21740:2025) outlines requirements for launch window analysis and identification of safe launch timing, including a collision avoidance risk assessment matrix [1] - This standard is applicable for 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] Group 2: Satellite Attitude and Orbit Control - The 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 [2] - It establishes principles and requirements for constructing the stable operation capability of satellite attitude and orbit control systems based on influencing factors [2] - The standard was primarily drafted by the Beijing Institute of Control Engineering, with the China Aerospace Standardization Research Institute coordinating technical discussions with the ISO [2]