Status 2019-08-26T11:12:52+00:00

Mission Status & Summary

Mission Status

CHEOPS has been proposed as an S-class mission in response to the call for Proposals issued by ESA in March 2012.

On 19 October 2012 it was selected for study for the first S-class mission.

On 19 February 2014 CHEOPS was adopted by SPC.

In August 2015 the instrument structural and thermal model was delivered to the spacecraft.

In January 2016 the instrument critical design review (CDR) was passed.

In April 2016 the instrument electrical model was delivered to the spacecraft.

In May 2016 the system CDR was passed.

In June 2017 the first ground segment validation test was executed (SVT-1A).

In July 2017 the instrument flight model was aligned with the EQM of the camera.

In October 2017 the instrument was pre-calibrated with the EQM of the camera

In November 2017 the flight camera was received and aligned.

In January 2018 the flight instrument calibration campaign stared.

On 11 April 2018 the flight instrument was delivered to the spacecraft in Madrid.

In July 2018 the spacecraft thermal tests have been carried out.

By end 2018 all spacecraft environmental tests have been completed.

Currently the spacecraft is undergoing system qualification & acceptance review.

Arianespace confirmed the launch for the last quarter of 2019.

Mission Summary

The following table summarizes the mission.

NameCHEOPS, CHaracterizing ExOPlanet Satellite
Primary Goal Known exoplanet host stars with a V-magnitude < 12 (goal: 13) anywhere on the sky (at least 50% sky observable)
WavelengthVisible range : 400 to 1100 nm
Telescope32 cm reflective an-axis telescope
OrbitSun-synchronous Low Earth Orbit, LTAN 6am, altitude 700 km
Lifetime3.5 years
Type S-class mission
(last update July 2018)

Executive Summary | Mission Planning