Euclid Quick Data Release (Q1)
H. (H.J) MccrackenSorbonne UniversitéK BensonMullard Space Science Laboratory, University College LondonC. DoldingMullard Space Science Laboratory, University College LondonT. FlanetSorbonne UniversitéC. GrenetInstitut d'Astrophysique de ParisO. HérentInstitut d'Astrophysique de ParisP. HudelotInstitut d'Astrophysique de ParisC. LaigleInstitut d'Astrophysique de ParisG LeroyDepartment of Physics, Centre for Extragalactic Astronomy, Durham UniversityP. LiebingMullard Space Science Laboratory, University College LondonR. MasseyS. MottetSorbonne UniversitéR. NakajimaUniversität Bonn, Argelander-Institut für AstronomieH.N. Nguyen-KimInstitut d’Astrophysique de Paris, UMR 7095, CNRS, and Sorbonne UniversitéJ.W NightingaleSchool of Mathematics, Statistics and Physics, Newcastle UniversityJ. SkottfeltCentre for Electronic Imaging, Open UniversityL. C. SmithInstitute of AstronomyFranca SoldanoInstitut d'Astrophysique de ParisE. VileniusMullard Space Science Laboratory, University College LondonM WanderCentre for Electronic Imaging, Open UniversityMaximilian von Wietersheim-KramstaDepartment of Physics, Centre for Extragalactic Astronomy, Durham UniversityMohammad AkhlaghiCentro de Estudios de Física del Cosmos de Aragón (CEFCA)H. AusselUniversité Paris-SaclayS. AwanMullard Space Science Laboratory, University College LondonR. AzzolliniMullard Space Science Laboratory, University College LondonAlberto BassetCentre National d’Etudes Spatiales – Centre spatial de ToulouseGian Paolo CandiniMullard Space Science Laboratory, University College LondonP. CasenoveCentre National d’Etudes Spatiales – Centre spatial de ToulouseM. CropperMullard Space Science Laboratory, University College LondonHenk HoekstraLeiden Observatory, Leiden UniversityH. Israel, Ernst-Reuter-Str. 4e, 31224 Peine, GermanyAli Kh. KhalilMullard Space Science Laboratory, University College LondonK KuijkenLeiden Observatory, Leiden UniversityY. MellierInstitut d’Astrophysique de ParisL. MillerDepartment of Physics, Oxford UniversityS.-M NiemiEuropean Space Research and Technology CentreM.J. PageMullard Space Science Laboratory, University College LondonK. PatersonMax-Planck-Institut für AstronomieM. SchirmerMax-Planck-Institut für AstronomieN. A. WaltonInstitute of AstronomyA. ZaccheiIFPU, Institute for Fundamental Physics of the UniverseJ. BarriosCavendish Laboratory, University of CambridgeT. ErbenUniversität Bonn, Argelander-Institut für AstronomieT. ErbenJacob KegerreisDepartment of Physics, Institute for Computational Cosmology, Durham UniversityDavid LagattutaDepartment of Physics, Centre for Extragalactic Astronomy, Durham UniversityA. LançonUniversité de Strasbourg, CNRS, Observatoire astronomique de Strasbourg, UMR 7550N. AghanimUniversité Paris-SaclayB. AltieriESAC/ESAA. AmaraSchool of Mathematics and Physics, University of SurreyS. AndreonINAF-Osservatorio Astronomico di BreraP. N. AppletonCaltech/IPACN AuricchioINAF-Osservatorio di Astrofisica e Scienza dello Spazio di BolognaC. BaccigalupiSISSA, International School for Advanced StudiesMarco BaldiINAF-Osservatorio di Astrofisica e Scienza dello Spazio di BolognaA. BalestraINAF-Osservatorio Astronomico di PadovaS. BardelliINAF-Osservatorio di Astrofisica e Scienza dello Spazio di BolognaP. BattagliaINAF-Osservatorio di Astrofisica e Scienza dello Spazio di BolognaA. N. BelikovKapteyn Astronomical Institute, University of GroningenR. BenderUniversitäts-Sternwarte München, Fakultät für Physik, Ludwig-Maximilians-Universität MünchenFrancis BernardeauInstitut d’Astrophysique de Paris, UMR 7095, CNRS, and Sorbonne UniversitéA. BivianoIFPU, Institute for Fundamental Physics of the UniverseA BonchiSpace Science Data Center, Italian Space AgencyE. BranchiniINAF-Osservatorio Astronomico di BreraM. BresciaDepartment of Physics “E. Pancini”, University Federico IIJ. BrinchmannInstituto de Astrofísica e Ciências do Espaço, Universidade do Porto, CAUPS. CameraINAF-Osservatorio Astrofisico di TorinoG Cañas-HerreraInstitute Lorentz, Leiden UniversityV. CapobiancoINAF-Osservatorio Astrofisico di TorinoC. CarboneINAF-IASF MilanoJ. CarreteroPort d’Informació CientíficaSantiago CasasInstitute for Theoretical Particle Physics and Cosmology (TTK), RWTH Aachen UniversityF. J. CastanderInstitute of Space Sciences (ICE, CSIC)M. CastellanoINAF-Osservatorio Astronomico di RomaG. CastignaniINAF-Osservatorio di Astrofisica e Scienza dello Spazio di BolognaS. CavuotiINFN section of NaplesK. C. ChambersInstitute for Astronomy, University of HawaiiA. CimattiDipartimento di Fisica e Astronomia “Augusto Righi” – Alma Mater Studiorum Università di BolognaC. Colodro-CondeInstituto de Astrofísica de CanariasG. CongedoInstitute for Astronomy, University of Edinburgh, Royal ObservatoryC.J. ConseliceJodrell Bank Centre for Astrophysics, Department of Physics and Astronomy, University of ManchesterL. ConversiEuropean Space Agency/ESRINY. CopinCentre National de la Recherche ScientifiqueF. CourbinInstitut de Ciències del Cosmos (ICCUB), Universitat de Barcelona (IEEC-UB)H. M. CourtoisUCB Lyon 1, CNRS/IN2P3, IUF, IP2I LyonA. Da SilvaInstituto de Astrofísica e Ciências do Espaço, Faculdade de Ciências, Universidade de LisboaR. da SilvaUnited Kingdom Space AgencyH. DegaudenziDepartment of Astronomy, University of GenevaG. De LuciaINAF-Osservatorio Astronomico di TriesteA. M. Di GiorgioINAF-Istituto di Astrofisica e Planetologia SpazialiJ. DinisDepartamento de Física, Faculdade de Ciências, Universidade de LisboaH. DoleUniversité Paris-SaclayF DubathDepartment of Astronomy, University of GenevaX. DupacESAC/ESAS. DusiniINFN-PadovaA. EaletUniversité Claude Bernard Lyon 1, CNRS/IN2P3, IP2I Lyon, UMR 5822S. EscoffierCentre de physique des particules de MarseilleM. FabriciusMax Planck Institute for Extraterrestrial PhysicsM. FarinaINAF-Istituto di Astrofisica e Planetologia SpazialiR FarinelliINAF-Osservatorio di Astrofisica e Scienza dello Spazio di Bologna
2025en
ABI
Annotatsiya
This paper describes the VIS processing function (VIS PF) of the Euclid ground segment pipeline, which processes and calibrates raw data from the VIS camera. We present the algorithms used in each processing element along with a description of the on-orbit performance of VIS PF based on performance verification and Q1 datasets. We demonstrate that the principal performance metrics (image quality, astrometric accuracy, photometric calibration) are within pre-launch specifications. The image-to-image photometric scatter is less than 0.8% and absolute astrometric accuracy compared to Gaia is 5 mas. Image quality is stable over all Q1 images, with a full width at half maximum (FWHM) of 0 . ″ 16. The stacked images (combining four nominal and two short exposures) reach I E = 25.6 (10 σ , measured as the variance of 1 . ″ 3 diameter apertures). We also describe quality control metrics provided with each image, and an appendix provides a detailed description of the provided data products. The excellent quality of these images demonstrates the immense potential of Euclid VIS data for weak lensing. VIS data covering most of the extragalactic sky will provide a lasting high-resolution atlas of the Universe.
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