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


A thousand days of CHEOPS

December 21st, 2022

After a thousand days in orbit, the CHEOPS space telescope shows almost no signs of wear. Under t...

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CHEOPS reveals a rugby ball-shaped exoplanet

January 11th, 2022

With the help of the CHEOPS space telescope, an international team including researchers from the...

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Two-year launch anniversary of CHEOPS

December 14th, 2021

After two years in orbit, the CHEOPS space telescope has exceeded expectations. By reliably revea...

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see all News

Picture of the Month

CHEOPS reveals a rugby ball-shaped exoplanet

January 12th, 2022

ESA’s exoplanet mission Cheops has revealed that an exoplanet orbiting its host star within a day...

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see all pictures of the month

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