STScI

The heart of the observatory

Currently, we are concentrating our work on our large telescope. After the electromechanical control of the mirror doors has been realized, the mounting of the main mirror on an air bag as well as its sensor system has to be adjusted and controlled. For this purpose, we have built a mirror dummy of similar weight and perform corresponding measurements until we have adjusted the entire control loop. Since the mirror “floats” on air, so to speak, the highest accuracy is required here.

The mirror will also soon be cleaned of its dirt by washing it. Vacuum coating with aluminum is not necessary so far.

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