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ISO/TS 21979:2018

Space environment (natural and artificial) — Procedure for obtaining worst case and confidence level of fluence using the quasi-dynamic model of earth's radiation belts

Aug 24, 2018

General information

90.93     Dec 9, 2021


ISO/TC 20/SC 14

Technical Specification





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This document, by using a model that reproduces the fluctuations of radiation belts, defines the calculation method (orbit, operation period) of the radiation fluence received by a satellite. The quasi-dynamic model of Earth's radiation belts adopts input parameters (index values) to predict variation. The input parameters are selected from those that are easy to obtain data and have high correlation with the variation in Earth's radiation belts.
NOTE This method is an engineering method used for satellite design and similar purposes.

Life cycle


ISO/TS 21979:2018
90.93 Standard confirmed
Dec 9, 2021