image 21-May-2019 02:49:56

CHEOPS through the looking glass

Date: 20 June 2017
Satellite: CHEOPS
Copyright: University of Bern

Alignment tests of the CHEOPS scientific instrument included testing under low temperature and vacuum conditions in a thermal vacuum chamber at the University of Bern.

The primary mirror of the telescope can be seen through the window in the sealed chamber. By accurately measuring how the image of a star-like light source changed as the instrument was cooled, it was possible to evaluate the accuracy of the in-orbit alignment.

Last Update: 06 December 2017

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