Welcome to the CHEOPS website!

2019-12-18 9:54:20 Soyuz liftoff in Kourou
2020-01-09 First dark image taken
2020-01-29 Cover of the telescope successfully opened and latched
First images successfully taken, everything looks good!
2020-03-25 In-Orbit Commissioning successfully passed; preparing for routine operations starting on 18 April

2019-12-18 9:54:20 Soyuz liftoff in Kourou
2020-01-09 First dark image taken
2020-01-29 Cover of the telescope successfully opened and latched
First images successfully taken, everything looks good!
2020-03-25 In-Orbit Commissioning successfully passed; preparing for routine operations starting on 18 April

CHEOPS' location

Live position of the CHEOPS satellite

The Mission

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. CHEOPS was successfully launched on December 18th 2019.

CHEOPS stands for CHaracterising ExOPlanet Satellite. It is a small photometric observatory which operates in a low Earth orbit to measure transits of exoplanets. See the «Executive Summary» for a short overview.

Most of the content of the menu items «News» and «Media & Outreach» is also available in German and French.