Welcome to the CHEOPS website!
This is the official consortium homepage of the CHEOPS mission. CHEOPS is the first S-class mission from ESA and was selected in October 2012 with a launch foreseen in the second half of 2019.
CHEOPS stands for CHaracterising ExOPlanet Satellite. It is a small photometric observatory to be launched into low Earth orbit to measure transits of Exo-planets. See the executive summary for a short overview.
Please use the menu for further information. The majority of the site is currently only available in English. The menu item Public is also available in German.