Welcome to the CHEOPS website!

Launch alert!

Launch events

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 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.

CHEOPS' location

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CHEOPS-Children’s Drawings Campaign

Shown below are 3 of the 2748 drawings that will fly into space with the CHEOPS satellite.


25 Jun 2019
It takes collaboration and teamwork to operate a spacecraft. As the CHEOPS launch approaches, a Europe-wide team is preparing to…
29 Mar 2019
Zweitletzte Station vor Reise ins All für Weltraumteleskop CHEOPS
28 Mar 2019
Exoplanet satellite ready
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Picture of the month

13 Dec 2018
Last instrument software update before launch is currently being performed at the CHEOPS Mission Operations Center (MOC) at INTA, Torrejon,…


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