The CHEOPS science instrument ready for shipment after completion of the calibration
![](https://cdn.sci.esa.int/documents/34122/35441/1567214794900-CHEOPS_Sealed_instrument_625.jpg)
Date: 05 April 2018
Satellite: CHEOPS
Depicts: Science instrument
Location: University of Bern, Switzerland
Copyright: University of Bern
The CHEOPS science instrument in the cleanroom at the University of Bern, Switzerland, with the thermal-vacuum chamber in the background. Between calibration runs, the telescope aperture is sealed by the copper-coloured lid of the cover assembly. One of the qualification tests involved verifying that the instrument was perfectly light-tight by illuminating the sealed instrument from many angles. Notice the spring-loaded mechanism that will release the lid to reveal the entrance aperture after launch.
Last Update: 1 September 2019