The harsh radiation environment in space requires that electronics on spacecraft be "radiation hardened." However, the radiation environment in LEO is not as intense as say a spacecraft traveling through the Van Allen belts. I'm wondering what level of radiation hardening is needed for spacecraft in LEO or payloads going to the ISS. A link to a NASA or other agency requirements document would be appreciated.
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2$\begingroup$ Related: space.stackexchange.com/questions/1232/… $\endgroup$ – called2voyage♦ Aug 5 '16 at 19:58
