The external structure also hosts important electromechanical components: the switches to turn the S/C on are placed on the internal side of the frame structure, in a way that the metallic roller of the switch is able to slide over the rail of the ejection POD and turn the S/C once the contact is lost; the spring plungers on the bottom of the structure, which role is to help the separation of the cubesat during the ejection from the POD.
FEES Lateral boards
The S/C has 6 external boards, one each side. All the boards are fundamental for many different reasons: first of all, from a structural point of view, they contribute to improve the overall mechanical properties as, by being fixed to the frame structure, they help keeping the final structure together. Additionally, said boards host essential components of the S/C (e.g. antennas and solar cells), and provide radiation screening for the internal components (i.e. the Main PCB), and more in general mitigate the effect of the space environment on the other subsystems. Three of these boards embed the magnetorquers.
FEES lateral boards
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