The printed circuits boards are being designed this week and in the coming ones, where thermal aspects must also be taken into consideration besides the production constraints stipulated by the manufacturer. The vacuum does not contain any ambient air or any kind of gas in sufficient density that may be adequate for cooling / thermal exchange. The electronic components emit the generated (dissipated) heat by infrared radiation, or, via physical contacts, by conduction into the satellite structure.
Besides designing, we also visited the KFKI Research Institute for Particle and Nuclear Physics with Gyula and Zoli, where we were offered the opportunity to use an instrument that is capable to simultaneously create the vacuum and temperature we need (thermal vacuum chamber), while we are testing the satellite in operation.