ESA Science & Technology - CHEOPS

The CHEOPS Time Allocation Committee (TAC) met on 11 - 13 May 2022 to review proposals submitted to the third and final annual Announcement of Opportunity (AO-3) for observing time in ESA's CHEOPS Guest Observers Programme during the nominal mission.

Proposals are solicited in response to the third, and final, Announcement of Opportunity (AO-3) for observing time in the CHEOPS Guest Observers Programme during the nominal mission. This AO covers the period from 1 July 2022 to 24 September 2023.

While exploring two exoplanets in a bright nearby star system, ESA's exoplanet-hunting CHEOPS satellite has unexpectedly spotted the system's third known planet crossing the face of the star. This transit reveals exciting details about a rare planet "with no known equivalent", say the researchers.

ESA's exoplanet mission CHEOPS has revealed a unique planetary system consisting of six exoplanets, five of which are locked in a rare rhythmic dance as they orbit their central star. The sizes and masses of the planets, however, don't follow such an orderly pattern.

ESA's new exoplanet mission, CHEOPS, has found a nearby planetary system to contain one of the hottest and most extreme extra-solar planets known to date: WASP-189 b. The finding, the very first from the mission, demonstrates CHEOPS' unique ability to shed light on the Universe around us by revealing the secrets of these alien worlds.

The CHEOPS Time Allocation Committee (TAC) met on 11 - 13 May 2022 to review proposals submitted to the third and final annual Announcement of Opportunity (AO-3) for observing time in ESA's CHEOPS Guest Observers Programme during the nominal mission.

Proposals are solicited in response to the third, and final, Announcement of Opportunity (AO-3) for observing time in the CHEOPS Guest Observers Programme during the nominal mission. This AO covers the period from 1 July 2022 to 24 September 2023.

The third annual announcement of opportunity (AO-3) for participation in the CHEOPS Guest Observers Programme was due to open on 9 November 2021. The AO has been postponed and is currently foreseen to come out in early 2022.

Observing time on CHEOPS in the Guest Observers Programme has been awarded to nine proposals received in response to the CHEOPS second Announcement of Opportunity (AO-2).

Proposals are invited for the CHEOPS Discretionary Programme, an element of the Guest Observers Programme which enables scientists to propose observations of individual targets that have been discovered, or declared to be of high scientific merit, since the close of AO-1 back in mid-May 2019.

CHEOPS, ESA's 'Characterising Exoplanet Satellite', was successfully launched from Europe's Spaceport in Kourou, French Guiana, at 08:54:20 UTC (09:54:20 CET) on 18 December 2019. Watch the replay of the liftoff here.

Download this interactive media kit to learn more about the launch of CHEOPS and the science goals of the mission.