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


Forschung und Innovation kennen keine Grenzen

September 9th, 2020

Die internationale Zusammenarbeit sei für die Universität Bern von grösster Bedeutung, betonte Re...

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CHEOPS space telescope ready for scientific operation

April 20th, 2020

CHEOPS has reached its next milestone: Following extensive tests in Earth's orbit, some of which ...

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CHEOPS space telescope takes its first pictures

February 7th, 2020

Next milestone in the commissioning of CHEOPS: After the successful opening of the space telescop...

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see all News

Picture of the Month

CHEOPS Science Team meeting “Padova” – Online group picture

April 20th, 2020

As a consequence of the coronavirus crisis, the CHEOPS Science Team meeting from April 6th to 8th...

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see all pictures of the month

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