This document provides the criteria for stable on-orbit operation of the spacecraft's AOCS. It addresses the factors affecting the spacecraft's on-orbit stability by specifying principles and requirements for establishing the spacecraft AOCS's capability for stable on-orbit operation, which include:

— principles for judging data validity and the requisite procedures for handling such data;

— anomaly detection;

— management of software and hardware failures;

— safety boundary checks;

— activation protocols for emergency survival modes.

This document also establishes the functional interface between on-orbit autonomy and ground-based maintenance operations, ensuring that the spacecraft maintains its intended attitude and orbit.

This document is applicable to the attitude and orbit control systems of various types of spacecraft.

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