Approved proposals for the discretionary Programme

Up to 5% of the observing time on CHEOPS may be taken up by the Discretaionary Programme. Proposals can be submitted at any time.

Further details on the discretionary programme, including the criteria that the single target per proposal needs to meet, can be found at this link.

Below is a table listing proposals that have been awarded time.


Proposals submitted during YearS 1 and 2 of CHEOPS operations (25 March 2020 - 24 March 2022)

Key to table:  EP - Exoplanet Science; SP – Stellar Physics; Other – Other topics.

Proposal ID

Surname of PI [Country]

Title of Proposal                                    

 # Orbits

001 (EP) Jenkins  (CL)


Constraining the scattering propoerties of condensates in the ultrahot neptune, LTT 9779b



005 (EP)


Kostov (US)


Solving the orbital ambiguitiy of a new transiting circumbinary planet TIC 172900988b



007 (EP) Heidari (FR)


Observing the second HD88986b transit event: a temperate sub-Neptunre characterised by TESS and SOPHIE

008 (EP) Edwards (FR) Catching the Transit of a Long Period Planet to Support Future Atmospheric Characterisation 14
010 (EP) Akinsanmi (CH) Resolving the dynamical history of the hot Jupiter WASP-132b and its inner mini-Neptune companion 18
014 (EP)   Period measurement of the brightest-host transiting habitable zone terrestrial exoplanet 40
    Total number of orbits awarded since the start of the CHEOPS mission 215.7



Last updated 26 October 2022