CHEOPS in-flight performance: A comprehensive look at the first 3.5 yr of operations

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CHEOPS in-flight performance: A comprehensive look at the first 3.5 yr of operations

Fortier, A. (author): Universität Bern,University of Bern

Simon, A.E. (author): Universität Bern,University of Bern

Broeg, C. (author): Universität Bern,University of Bern

Olofsson, G. (author): Stockholms universitet,Stockholm University

Deline, A. (author): Université de Genève,University of Geneva

Wilson, T.G. (author): The University of Warwick

Maxted, P. (author): Keele University

Brandeker, A. (author): Stockholms universitet,Stockholm University

Collier Cameron, A. (author): University of St Andrews

Beck, M. (author): Université de Genève,University of Geneva

Bekkelien, A. (author): Université de Genève,University of Geneva

Billot, N. (author): Université de Genève,University of Geneva

Bonfanti, A. (author)

Bruno, G. (author): Istituto nazionale di astrofisica (INAF)

Cabrera, J. (author): Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)

Delrez, L. (author): Universite de Liège,University of Liège

Demory, B.O. (author): Universität Bern,University of Bern

Futyan, D. (author): Université de Genève,University of Geneva

Florén, H.-G. (author): Stockholms universitet,Stockholm University

Günther, Maximilian N. (author): European Space Research and Technology Centre (ESA ESTEC)

Heitzmann, A. (author): Université de Genève,University of Geneva

Hoyer, S. (author): Laboratoire d'Astrophysique de Marseille

Isaak, K. (author): European Space Research and Technology Centre (ESA ESTEC)

Sousa, S.G. (author): Universidade do Porto,University of Porto

Stalport, M. (author): Universite de Liège,University of Liège

Turin, A. (author): Laboratoire d'Astrophysique de Marseille

Verhoeve, P. (author): European Space Research and Technology Centre (ESA ESTEC)

Akinsanmi, B. (author): Université de Genève,University of Geneva

Alibert, Y. (author): Universität Bern,University of Bern

Alonso, R. (author): Instituto de Astrofísica de Canarias

Bánhidi, D. (author)

Bárczy, T. (author)

Barrado, D. (author): Centro de Astrobiologia (CAB)

Barros, S.C.C. (author): Universidade do Porto,University of Porto

Baumjohann, W. (author)

Baycroft, T.A. (author): University of Birmingham

Beck, T. (author): Universität Bern,University of Bern

Benz, W. (author): Universität Bern,University of Bern

Bíró, B.I. (author)

Bódi, A. (author): Magyar Tudomanyos Akademia,Hungarian Academy of Sciences

Bonfils, X. (author)

Borsato, L. (author): Istituto nazionale di astrofisica (INAF)

Charnoz, S. (author): Institut de Physique du Globe de Paris

Cseh, B. (author): Magyar Tudomanyos Akademia,Hungarian Academy of Sciences

Csizmadia, Szilard (author): Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)

Csányi, I. (author)

Cubillos, P. E. (author)

Davies, M. B. (author): Lunds universitet,Lund University

Davis, Y.T. (author): University of Birmingham

Deleuil, M. (author): Laboratoire d'Astrophysique de Marseille

Demangeon, O. (author): Universidade do Porto,University of Porto

Derekas, A. (author): Eötvös Loránd University (ELTE)

Dransfield, Georgina (author): University of Birmingham

Ducrot, E. (author): Université Paris-Saclay,University Paris-Saclay

Ehrenreich, D. (author): Université de Genève,University of Geneva

Erikson, Anders (author): Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)

Fariña, C. (author): Universidad de la Laguna,University of La Laguna

Fossati, L. (author)

Fridlund, Malcolm, 1952 (author): Universiteit Leiden (UL),Leiden University (UL)

Gandolfi, D. (author): Universita degli Studi di Torino,University of Turin

Garai, Z. (author): Eötvös Loránd University (ELTE)

Garcia, L.J. (author): Universite de Liège,University of Liège

Gillon, Michaël (author): Universite de Liège,University of Liège

Gómez Maqueo Chew, Y. (author): Universidad Nacional Autónoma de México (UNAM),Universidad Nacional Autonoma de Mexico

Gómez-Muñoz, M.A. (author): Universidad Nacional Autónoma de México (UNAM),Universidad Nacional Autonoma de Mexico

Granata, Veronica (author): Istituto nazionale di astrofisica (INAF)

Gudel, M. (author): Universität Wien,University of Vienna

Guterman, P. (author): Laboratoire d'Astrophysique de Marseille

Hegedüs, T. (author)

Helling, Ch. (author)

Jehin, Emmanuel (author): Universite de Liège,University of Liège

Kalup, Cs. (author): Magyar Tudomanyos Akademia,Hungarian Academy of Sciences

Kilkenny, D. (author): University of the Western Cape

Kiss, L. L. (author): Magyar Tudomanyos Akademia,Hungarian Academy of Sciences

Kriskovics, L. (author): Magyar Tudomanyos Akademia,Hungarian Academy of Sciences

Lam, K. W.F. (author): Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)

Laskar, J. (author): Observatoire de Paris,Paris Observatory

des Etangs, A. L. (author): Institut d 'Astrophysique de Paris

Lendl, M. (author): Université de Genève,University of Geneva

Lopez Pina, A. (author): Airbus Group,Airbus Group Ltd

Luntzer, A. (author): Universität Wien,University of Vienna

Magrin, D. (author): Istituto nazionale di astrofisica (INAF)

Miller, N.J. (author): Keele University

Modrego Contreras, D. (author): Instituto Nacional de Tecnica Aeroespacial

Mordasini, C. (author): Universität Bern,University of Bern

Munari, M. (author): Istituto nazionale di astrofisica (INAF)

Murray, C.A. (author): University of Colorado at Boulder

Nascimbeni, Valerio (author): Istituto nazionale di astrofisica (INAF)

Ottacher, H. (author)

Ottensamer, R. (author): Universität Wien,University of Vienna

Pagano, I. (author): Istituto nazionale di astrofisica (INAF)

Pál, A. (author): Magyar Tudomanyos Akademia,Hungarian Academy of Sciences

Palle, Enric (author): Instituto de Astrofísica de Canarias

Pasetti, A. (author)

Pedersen, P.P. (author): University Of Cambridge

Peter, G. (author): Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)

Petrucci, R. (author)

Piotto, Giampaolo P. (author): Istituto nazionale di astrofisica (INAF)

Pizarro-Rubio, A. (author): Airbus Group,Airbus Group Ltd

Pollacco, Don L. (author): The University of Warwick

Pribulla, T. (author): Slovak Academy of Sciences

Queloz, D. (author): University Of Cambridge

Ragazzoni, Roberto (author): Istituto nazionale di astrofisica (INAF)

Rando, N. (author): European Space Research and Technology Centre (ESA ESTEC)

Rauer, H. (author): Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)

Ribas, I. (author): Institut de Ciències de l'Espai (ICE) - CSIC,Institute of Space Sciences (ICE) - CSIC

Sabin, L. (author): Universidad Nacional Autónoma de México (UNAM),Universidad Nacional Autonoma de Mexico

Santos, N. C. (author): Universidade do Porto,University of Porto

Scandariato, Gaetano (author): Istituto nazionale di astrofisica (INAF)

Schanche, N. (author)

Schroffenegger, U. (author): Universität Bern,University of Bern

Scutt, O.J. (author): University of Birmingham

Sebastian, D. (author): University of Birmingham

Segransan, D. (author): Université de Genève,University of Geneva

Seli, B. (author): Magyar Tudomanyos Akademia,Hungarian Academy of Sciences

Smith, A. M.S. (author): Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)

Southworth, R. (author): European Space Operations Centre

Standing, M.R. (author): University of Birmingham

Szabó, Gy M. (author): Eötvös Loránd University (ELTE)

Szakáts, R. (author): Magyar Tudomanyos Akademia,Hungarian Academy of Sciences

Thomas, Nicolas (author): Universität Bern,University of Bern

Timmermans, M. (author): Universite de Liège,University of Liège

Triaud, Amaury (author): University of Birmingham

Udry, S. (author): Université de Genève,University of Geneva

Van Grootel, V. (author): Universite de Liège,University of Liège

Venturini, J. (author): Université de Genève,University of Geneva

Villaver, E. (author): Instituto de Astrofísica de Canarias

Vinkó, J. (author): Magyar Tudomanyos Akademia,Hungarian Academy of Sciences

Walton, N. A. (author): University Of Cambridge

Wells, R. (author): Universität Bern,University of Bern

Wolter, D. (author): Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)

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(creator_code:org_t)

2024
2024
English.
In: Astronomy and Astrophysics. - 0004-6361 .- 1432-0746. ; 687

Related links:: https://research.cha... (primary) (free); show more...; https://research.cha...; https://doi.org/10.1...; show less...

Journal article (peer-reviewed)

Abstract Subject headings

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 missiona'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 instrumenta'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 instrumenta's actual performance with expectations. Results. The precision of the CHEOPS measurements has enabled the mission objectives to be met and exceeded. The satellitea'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 missiona's performance. The satellitea's capabilities remain robust, and we are confident that we will continue to acquire high-quality data during the mission extension.

Subject headings

TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Rymd- och flygteknik (hsv//swe)
ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Aerospace Engineering (hsv//eng)
NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)

Keyword

Techniques: photometric
Space vehicles: instruments
Telescopes
Planets and satellites: Terrestrial planets
Planets and satellites: detection

Publication and Content Type

art (subject category)
ref (subject category)

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By the author/editor: Fortier, A.; Simon, A.E.; Broeg, C.; Olofsson, G.; Deline, A.; Wilson, T.G.; show more...; Maxted, P.; Brandeker, A.; Collier Cameron, ...; Beck, M.; Bekkelien, A.; Billot, N.; Bonfanti, A.; Bruno, G.; Cabrera, J.; Delrez, L.; Demory, B.O.; Futyan, D.; Florén, H.-G.; Günther, Maximil ...; Heitzmann, A.; Hoyer, S.; Isaak, K.; Sousa, S.G.; Stalport, M.; Turin, A.; Verhoeve, P.; Akinsanmi, B.; Alibert, Y.; Alonso, R.; Bánhidi, D.; Bárczy, T.; Barrado, D.; Barros, S.C.C.; Baumjohann, W.; Baycroft, T.A.; Beck, T.; Benz, W.; Bíró, B.I.; Bódi, A.; Bonfils, X.; Borsato, L.; Charnoz, S.; Cseh, B.; Csizmadia, Szila ...; Csányi, I.; Cubillos, P. E.; Davies, M. B.; Davis, Y.T.; Deleuil, M.; Demangeon, O.; Derekas, A.; Dransfield, Geor ...; Ducrot, E.; Ehrenreich, D.; Erikson, Anders; Fariña, C.; Fossati, L.; Fridlund, Malcol ...; Gandolfi, D.; Garai, Z.; Garcia, L.J.; Gillon, Michaël; Gómez Maqueo Che ...; Gómez-Muñoz, M.A ...; Granata, Veronic ...; Gudel, M.; Guterman, P.; Hegedüs, T.; Helling, Ch.; Jehin, Emmanuel; Kalup, Cs.; Kilkenny, D.; Kiss, L. L.; Kriskovics, L.; Lam, K. W.F.; Laskar, J.; des Etangs, A. L ...; Lendl, M.; Lopez Pina, A.; Luntzer, A.; Magrin, D.; Miller, N.J.; Modrego Contrera ...; Mordasini, C.; Munari, M.; Murray, C.A.; Nascimbeni, Vale ...; Ottacher, H.; Ottensamer, R.; Pagano, I.; Pál, A.; Palle, Enric; Pasetti, A.; Pedersen, P.P.; Peter, G.; Petrucci, R.; Piotto, Giampaol ...; Pizarro-Rubio, A ...; Pollacco, Don L.; Pribulla, T.; Queloz, D.; Ragazzoni, Rober ...; Rando, N.; Rauer, H.; Ribas, I.; Sabin, L.; Santos, N. C.; Scandariato, Gae ...; Schanche, N.; Schroffenegger, ...; Scutt, O.J.; Sebastian, D.; Segransan, D.; Seli, B.; Smith, A. M.S.; Southworth, R.; Standing, M.R.; Szabó, Gy M.; Szakáts, R.; Thomas, Nicolas; Timmermans, M.; Triaud, Amaury; Udry, S.; Van Grootel, V.; Venturini, J.; Villaver, E.; Vinkó, J.; Walton, N. A.; Wells, R.; Wolter, D.; show less...

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ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Mechanical Engin ...; and Aerospace Engine ...

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