Euclid Quick Data Release (Q1): VIS processing and data products
Instrumentation and Methods for Astrophysics
2025-12-12 v2 Cosmology and Nongalactic Astrophysics
Abstract
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 (PV) and Q1 data. 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 , and absolute astrometric accuracy compared to Gaia is mas Image quality is stable over all Q1 images with a full width at half maximum (FWHM) of . The stacked images (combining four nominal and two short exposures) reach (, measured as the variance of 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.
Cite
@article{arxiv.2503.15303,
title = {Euclid Quick Data Release (Q1): VIS processing and data products},
author = {Euclid Collaboration and H. J. McCracken and K. Benson and C. Dolding and T. Flanet and C. Grenet and O. Herent and P. Hudelot and C. Laigle and G. Leroy and P. Liebing and R. Massey and S. Mottet and R. Nakajima and H. N. Nguyen-Kim and J. W. Nightingale and J. Skottfelt and L. C. Smith and F. Soldano and E. Vilenius and M. Wander and M. von Wietersheim-Kramsta and M. Akhlaghi and H. Aussel and S. Awan and R. Azzollini and A. Basset and G. P. Candini and P. Casenove and M. Cropper and H. Hoekstra and H. Israel and A. Khalil and K. Kuijken and Y. Mellier and L. Miller and S. -M. Niemi and M. J. Page and K. Paterson and M. Schirmer and N. A. Walton and A. Zacchei and J. P. L. G. Barrios and T. Erben and R. Hayes and J. A. Kegerreis and D. J. Lagattuta and A. Lançon and N. Aghanim and B. Altieri and A. Amara and S. Andreon and P. N. Appleton and N. Auricchio and C. Baccigalupi and M. Baldi and A. Balestra and S. Bardelli and P. Battaglia and A. N. Belikov and R. Bender and F. Bernardeau and A. Biviano and A. Bonchi and E. Branchini and M. Brescia and J. Brinchmann and S. Camera and G. Cañas-Herrera and V. Capobianco and C. Carbone and J. Carretero and S. Casas and F. J. Castander and M. Castellano and G. Castignani and S. Cavuoti and K. C. Chambers and A. Cimatti and C. Colodro-Conde and G. Congedo and C. J. Conselice and L. Conversi and Y. Copin and F. Courbin and H. M. Courtois and A. Da Silva and R. da Silva and H. Degaudenzi and G. De Lucia and A. M. Di Giorgio and J. Dinis and H. Dole and F. Dubath and X. Dupac and S. Dusini and A. Ealet and S. Escoffier and M. Fabricius and M. Farina and R. Farinelli and S. Ferriol and F. Finelli and P. Fosalba and S. Fotopoulou and N. Fourmanoit and M. Frailis and E. Franceschi and S. Galeotta and K. George and W. Gillard and B. Gillis and C. Giocoli and P. Gómez-Alvarez and J. Gracia-Carpio and B. R. Granett and A. Grazian and F. Grupp and L. Guzzo and M. Hailey and S. V. H. Haugan and J. Hoar and W. Holmes and F. Hormuth and A. Hornstrup and K. Jahnke and M. Jhabvala and B. Joachimi and E. Keihänen and S. Kermiche and A. Kiessling and M. Kilbinger and B. Kubik and M. Kümmel and M. Kunz and H. Kurki-Suonio and Q. Le Boulc'h and A. M. C. Le Brun and D. Le Mignant and S. Ligori and P. B. Lilje and V. Lindholm and I. Lloro and G. Mainetti and D. Maino and E. Maiorano and O. Mansutti and S. Marcin and O. Marggraf and M. Martinelli and N. Martinet and F. Marulli and D. C. Masters and S. Maurogordato and E. Medinaceli and S. Mei and M. Melchior and M. Meneghetti and E. Merlin and G. Meylan and A. Mora and M. Moresco and L. Moscardini and C. Neissner and R. C. Nichol and C. Padilla and S. Paltani and F. Pasian and K. Pedersen and W. J. Percival and V. Pettorino and S. Pires and G. Polenta and M. Poncet and L. A. Popa and L. Pozzetti and G. D. Racca and F. Raison and R. Rebolo and A. Renzi and J. Rhodes and G. Riccio and E. Romelli and M. Roncarelli and E. Rossetti and B. Rusholme and R. Saglia and Z. Sakr and A. G. Sánchez and D. Sapone and B. Sartoris and J. A. Schewtschenko and P. Schneider and T. Schrabback and A. Secroun and G. Seidel and M. Seiffert and S. Serrano and P. Simon and C. Sirignano and G. Sirri and A. Spurio Mancini and L. Stanco and J. Steinwagner and P. Tallada-Crespí and D. Tavagnacco and A. N. Taylor and H. I. Teplitz and I. Tereno and N. Tessore and S. Toft and R. Toledo-Moreo and F. Torradeflot and I. Tutusaus and E. A. Valentijn and L. Valenziano and J. Valiviita and T. Vassallo and G. Verdoes Kleijn and A. Veropalumbo and Y. Wang and J. Weller and G. Zamorani and F. M. Zerbi and I. A. Zinchenko and E. Zucca and V. Allevato and M. Ballardini and M. Bolzonella and E. Bozzo and C. Burigana and R. Cabanac and M. Calabrese and A. Cappi and D. Di Ferdinando and J. A. Escartin Vigo and G. Fabbian and L. Gabarra and M. Huertas-Company and J. Martín-Fleitas and S. Matthew and N. Mauri and R. B. Metcalf and A. Pezzotta and M. Pöntinen and C. Porciani and I. Risso and V. Scottez and M. Sereno and M. Tenti and M. Viel and M. Wiesmann and Y. Akrami and I. T. Andika and S. Anselmi and M. Archidiacono and F. Atrio-Barandela and C. Benoist and P. Bergamini and D. Bertacca and M. Bethermin and L. Bisigello and A. Blanchard and L. Blot and S. Borgani and A. S. Borlaff and M. L. Brown and S. Bruton and A. Calabro and B. Camacho Quevedo and F. Caro and C. S. Carvalho and T. Castro and F. Cogato and S. Conseil and A. R. Cooray and O. Cucciati and S. Davini and F. De Paolis and G. Desprez and A. Díaz-Sánchez and J. J. Diaz and S. Di Domizio and J. M. Diego and P. -A. Duc and A. Enia and Y. Fang and A. M. N. Ferguson and A. G. Ferrari and A. Finoguenov and A. Fontana and A. Franco and K. Ganga and J. García-Bellido and T. Gasparetto and V. Gautard and E. Gaztanaga and F. Giacomini and F. Gianotti and A. H. Gonzalez and G. Gozaliasl and A. Gregorio and M. Guidi and C. M. Gutierrez and A. Hall and W. G. Hartley and C. Hernández-Monteagudo and H. Hildebrandt and J. Hjorth and J. J. E. Kajava and Y. Kang and V. Kansal and D. Karagiannis and K. Kiiveri and C. C. Kirkpatrick and S. Kruk and J. Le Graet and L. Legrand and M. Lembo and F. Lepori and G. F. Lesci and J. Lesgourgues and L. Leuzzi and T. I. Liaudat and S. J. Liu and A. Loureiro and J. Macias-Perez and G. Maggio and M. Magliocchetti and F. Mannucci and R. Maoli and C. J. A. P. Martins and L. Maurin and C. J. R. McPartland and M. Miluzio and P. Monaco and A. Montoro and C. Moretti and G. Morgante and C. Murray and S. Nadathur and K. Naidoo and A. Navarro-Alsina and S. Nesseris and F. Passalacqua and L. Patrizii and A. Pisani and D. Potter and S. Quai and M. Radovich and P. Reimberg and P. -F. Rocci and G. Rodighiero and R. P. Rollins and S. Sacquegna and M. Sahlén and D. B. Sanders and E. Sarpa and C. Scarlata and A. Schneider and M. Schultheis and D. Sciotti and E. Sellentin and F. Shankar and A. Silvestri and K. Tanidis and C. Tao and G. Testera and M. Tewes and R. Teyssier and S. Tosi and A. Troja and M. Tucci and C. Valieri and A. Venhola and D. Vergani and G. Verza and P. Vielzeuf and J. R. Weaver and D. Scott},
journal= {arXiv preprint arXiv:2503.15303},
year = {2025}
}
Comments
Accepted version. To appear in the A&A Special Issue `Euclid Quick Data Release (Q1)', 22 pages, 22 figures