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dc.contributor.author
Fortier, Andrés
dc.contributor.author
Simon, A. E.
dc.contributor.author
Broeg, C.
dc.contributor.author
Olofsson, G.
dc.contributor.author
Deline, A.
dc.contributor.author
Wilson, T. G.
dc.contributor.author
Maxted, P. F. L.
dc.contributor.author
Brandeker, A.
dc.contributor.author
Collier Cameron, A.
dc.contributor.author
Beck, M.
dc.contributor.author
Bekkelien, A.
dc.contributor.author
Billot, N.
dc.contributor.author
Bonfanti, A.
dc.contributor.author
Bruno, G.
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Cabrera, J.
dc.contributor.author
Delrez, L.
dc.contributor.author
Demory, Brice Olivier
dc.contributor.author
Futyan, D.
dc.contributor.author
Florén, H. G.
dc.contributor.author
Günther, M. N.
dc.contributor.author
Heitzmann, A.
dc.contributor.author
Hoyer, S.
dc.contributor.author
Isaak, K. G.
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Sousa, S. G.
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Stalport, M.
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Petrucci, Romina Paola
dc.contributor.author
Villaver, E.
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Vinkó, J.
dc.contributor.author
Walton, N. A.
dc.contributor.author
Wells, R.
dc.contributor.author
Wolter, D.
dc.date.available
2024-09-18T10:08:07Z
dc.date.issued
2024-07
dc.identifier.citation
Fortier, Andrés; Simon, A. E.; Broeg, C.; Olofsson, G.; Deline, A.; et al.; CHEOPS in-flight performance: A comprehensive look at the first 3.5 yr of operations; EDP Sciences; Astronomy and Astrophysics; 687; A302; 7-2024; 1-43
dc.identifier.issn
0004-6361
dc.identifier.uri
http://hdl.handle.net/11336/244469
dc.description.abstract
Context. Since the discovery of the first exoplanet almost three decades ago, the number of known exoplanets has increased dramatically. By beginning of the 2000s it was clear that dedicated facilities to advance our studies in this field were needed. The CHaracterising ExOPlanet Satellite (CHEOPS) is a space telescope specifically designed to monitor transiting exoplanets orbiting bright stars. In September 2023, CHEOPS completed its nominal mission duration of 3.5 yr and remains in excellent operational conditions. As a testament to this, the mission has been extended until the end of 2026. Aims. Scientific and instrumental data have been collected throughout in-orbit commissioning and nominal operations, enabling a comprehensive analysis of the mission’s performance. In this article, we present the results of this analysis with a twofold goal. First, we aim to inform the scientific community about the present status of the mission and what can be expected as the instrument ages. Secondly, we intend for this publication to serve as a legacy document for future missions, providing insights and lessons learned from the successful operation of CHEOPS. Methods. To evaluate the instrument performance in flight, we developed a comprehensive monitoring and characterisation (M&C) programme. It consists of dedicated observations that allow us to characterise the instrument’s response and continuously monitor its behaviour. In addition to the standard collection of nominal science and housekeeping data, these observations provide valuable input for detecting, modelling, and correcting instrument systematics, discovering and addressing anomalies, and comparing the instrument’s actual performance with expectations. Results. The precision of the CHEOPS measurements has enabled the mission objectives to be met and exceeded. The satellite’s performance remains stable and reliable, ensuring accurate data collection throughout its operational life. Careful modelling of the instrumental systematics allows the data quality to be significantly improved during the light curve analysis phase, resulting in more precise scientific measurements. Conclusions. CHEOPS is compliant with the driving scientific requirements of the mission. Although visible, the ageing of the instrument has not affected the mission’s performance. The satellite’s capabilities remain robust, and we are confident that we will continue to acquire high-quality data during the mission extension.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
EDP Sciences
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
SPACE VEHICLES: INSTRUMENTS
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TECHNIQUES: PHOTOMETRIC
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TELESCOPES
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PLANETS AND SATELLITES: DETECTION
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PLANETS AND SATELLITES: TERRESTRIAL PLANETS
dc.subject.classification
Astronomía
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Ciencias Físicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
CHEOPS in-flight performance: A comprehensive look at the first 3.5 yr of operations
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2024-08-26T14:59:50Z
dc.journal.volume
687
dc.journal.number
A302
dc.journal.pagination
1-43
dc.journal.pais
Francia
dc.journal.ciudad
Paris
dc.description.fil
Fil: Fortier, Andrés. University of Bern; Suiza. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Simon, A. E.. University of Bern; Suiza
dc.description.fil
Fil: Broeg, C.. University of Bern; Suiza
dc.description.fil
Fil: Olofsson, G.. Stockholms Universitet. Departamento de Astronomia; Suecia
dc.description.fil
Fil: Deline, A.. Universidad de Ginebra; Suiza
dc.description.fil
Fil: Wilson, T. G.. University of Warwick; Reino Unido
dc.description.fil
Fil: Maxted, P. F. L.. Keele University.; Reino Unido
dc.description.fil
Fil: Brandeker, A.. Stockholms Universitet. Departamento de Astronomia; Suecia
dc.description.fil
Fil: Collier Cameron, A.. University of St. Andrews; Reino Unido
dc.description.fil
Fil: Beck, M.. Universidad de Ginebra; Suiza
dc.description.fil
Fil: Bekkelien, A.. Universidad de Ginebra; Suiza
dc.description.fil
Fil: Billot, N.. Universidad de Ginebra; Suiza
dc.description.fil
Fil: Bonfanti, A.. Austrian Academy Of Sciences (oaw);
dc.description.fil
Fil: Bruno, G.. Inaf-catania Astrophysical Observatory; Italia
dc.description.fil
Fil: Cabrera, J.. German Aerospace Center.; Alemania
dc.description.fil
Fil: Delrez, L.. Université de Liège; Bélgica
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Fil: Demory, Brice Olivier. University of Bern; Suiza
dc.description.fil
Fil: Futyan, D.. Universidad de Ginebra; Suiza
dc.description.fil
Fil: Florén, H. G.. Stockholms Universitet. Departamento de Astronomia; Suecia
dc.description.fil
Fil: Günther, M. N.. Agencia Espacial Europea; España
dc.description.fil
Fil: Heitzmann, A.. Universidad de Ginebra; Suiza
dc.description.fil
Fil: Hoyer, S.. Centre National de la Recherche Scientifique; Francia
dc.description.fil
Fil: Isaak, K. G.. Agencia Espacial Europea; España
dc.description.fil
Fil: Sousa, S. G.. Aix Marseille Université; Francia. Centre National de la Recherche Scientifique; Francia
dc.description.fil
Fil: Stalport, M.. Research Centre For Astronomy And Earth Sciences; Hungría. Université de Liège; Bélgica
dc.description.fil
Fil: Petrucci, Romina Paola. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina
dc.description.fil
Fil: Villaver, E.. Universidad de La Laguna; España. Instituto de Astrofísica de Canarias; España
dc.description.fil
Fil: Vinkó, J.. Research Centre for Astronomy and Earth Sciences; Hungría. ELTE Eötvös Loránd University; Hungría. University of Szeged; Hungría
dc.description.fil
Fil: Walton, N. A.. University of Cambridge; Estados Unidos
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Fil: Wells, R.. University of Bern; Suiza
dc.description.fil
Fil: Wolter, D.. Institute of Planetary Research; Alemania
dc.journal.title
Astronomy and Astrophysics
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/10.1051/0004-6361/202348576
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1051/0004-6361/202348576
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