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A test version of ESA’s Proba-V Companion CubeSat seen during preparation for ‘thermal balance’ testing in the Agency’s Mechanical Systems Laboratory at its ESTEC technical centre in the Netherlands.
Space is a place where it is possible to be hot and cold at the same time, if one part of your satellite is in sunlight and another face in shade. A satellite’s interior needs to maintain a steady temperature to go on operating properly.
Accordingly this ‘structural and thermal model’ of the Proba-V Companion CubeSat was placed inside the Large Vacuum Facility of ESA’s Mechanical Systems Laboratory – employed to test large satellite systems or complete small satellites – for a week-long exposure to temperature extremes in space-quality vacuum. ....

Agency Mechanical Systems Laboratory , Technology Programme , Systems Laboratory , Electronics Laboratory , Mechanical Systems Laboratory , Probav Companion Cubesat , Large Vacuum Facility , Earth Observing Proba V , Opto Electronics Laboratory , General Support Technology , தொழில்நுட்பம் ப்ரோக்ராம் , அமைப்புகள் ஆய்வகம் , மின்னணுவியல் ஆய்வகம் , இயந்திர அமைப்புகள் ஆய்வகம் ,