Welcome to the CHEOPS website!

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.

CHEOPS-Children’s Drawings Campaign

Below are 3 of the 2748 drawings that orbit the earth with the CHEOPS satellite.

CHEOPS Cartoon


One-year launch anniversary of CHEOPS

December 17th, 2020

In its first year in orbit, the CHEOPS space telescope has already revealed details of one of the...

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CHEOPS had to avoid space debris

November 5th, 2020

Space debris increasingly threatens rockets, the international space station and satellites. At t...

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First study with CHEOPS data describes one of the most extreme planets in the universe

September 28th, 2020

CHEOPS keeps its promise: Observations with the space telescope reveal details of the exoplanet W...

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see all News

Picture of the Month

How a special telescope learns about new planets (Video)

November 5th, 2020

Image: CHEOPS instrument scientist Andrea Fortier. Photo Swissinfo CHEOPS instrument scientist A...

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see all pictures of the month

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