ISO 20991:2025Published

Space systems — Requirements for small spacecraft

Systèmes spatiaux — Exigences relatives aux petits engins spatiaux

Abstract / scope

This document describes minimum requirements for small spacecraft.

This document covers different categories of small spacecraft – so-called mini-, micro-, nano-, pico- and femto-, as well as CubeSat, spacecraft. Therefore, for the sake of convenience, the term “small spacecraft” is used throughout this document as a generic term.

This document can be applied by small spacecraft developers, as well as dispenser providers and launch operators.

Life cycle

Replaces

ISO/TS 20991:2018WithdrawnSpace systems — Requirements for small spacecraftTechnical Specification · Published 20 Jul 2018 · ISO/TC 20/SC 14