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ISO 21740:2025

Space systems — Launch window estimation and collision avoidance

Jul 17, 2025

General information

60.60     Jul 17, 2025

ISO

ISO/TC 20/SC 14

International Standard

49.140  

English  

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Scope

This document establishes the general safety launch collision avoidance (safety LCOLA) requirements for the avoidance of collision between the collection of newly launched objects resulting from a space launch [including launch vehicle stage(s) and payloads or released objects] and human-inhabited or human-habitable space stations and space vehicles.
The document specifies the requirements for the analysis of launch times and procedures for identifying safe launch opportunities. It also describes the assessment and constraints for collision avoidance risk evaluation metrics (launch collision probability and standoff distance).

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PUBLISHED
ISO 21740:2025
60.60 Standard published
Jul 17, 2025