# FOXSI-4 Instrumentation 🦊 Details on the make-up of the FOXSI-4 instrument. This page will help a user decide what response components they want when using the response files and/or [Response-tools](https://foxsi.github.io/response-tools) code. More comming soon... ## FOXSI-4 components and positions More comming soon... ![FOXSI-4-telescope-composition](../response_tools/assets/foxsi4-telescopes.png "FOXSI-4 telescope composition.")