ISO 21740:2025

International Standard   Current Edition · Approved on 17 July 2025

Space systems — Launch window estimation and collision avoidance

ISO 21740:2025 Files

English 20 Pages
Current Edition
OMR 65.58

ISO 21740:2025 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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