Accès ouvert déclaré
2026
preprint
Euclid. Properties and performance of the NISP signal estimator
Euclid Collaboration, F. Cogato, B. Kubik, R. Barbier, Simon Conseil, E. Medinaceli, Y. Copin, E. Franceschi, L. Valenziano, N. Aghanim, B. Altieri, S. Andreon, N. Auricchio, C. Baccigalupi, M. Baldi, A. Balestra, S. Bardelli, P. Battaglia, Angelo Biviano, E. Branchini, M. Brescia, J. Brinchmann, S. Camera, Guadalupe Cañas-Herrera, V. Capobianco, Chris Carbone, J. Carretero, S. Casas, M. Castellano, G. Castignani, S. Cavuoti, A. Cimatti, C Colodro-Conde, G. Congedo, C. J. Conselice, L. Conversi, L. Corcione, A. Costille, F Courbin, H. M. Courtois, R. da Silva, H. Degaudenzi, G. De Lucia, H. Dole, F. Dubath, Xavier Dupac, S. Dusini, A. Ealet, S. Escoffier, Marcelo Farina, R Farinelli, F Faustini, S. Ferriol, F Finelli, Nicolas Fourmanoit, M. Frailis, M. Fumana, S. Galeotta, Koshy George, W. Gillard, B. Gillis, C. Giocoli, J. Gracia-Carpio, Andrea Grazian, F. Grupp, S. V. H. Haugan, W. Holmes, F. Hormuth, A. Hornstrup, P. Hudelot, Kevin Jahnke, M. Jhabvala, E. Keihänen, S. Kermiche, A. Kiessling, R. Kohley, M. Kümmel, Martina Kunz, H. Kurki‐Suonio, A. M. C. Le Brun, S. Ligori, P. B. Lilje, V. Lindholm, I. Lloro, G. Mainetti, D. Maino, E. Maiorano, O. Mansutti, S. Marcin, Ole Marggraf, M. Martinelli, N. Martinet, F. Marulli, R. J. Massey, S Mei, Yannick Mellier, M. Meneghetti, E. Merlin, G. Meylan, A Mora, Michele Ennio Maria Moresco, L. Moscardini, Christian Neissner, S. -M. Niemi, C. Padilla, S. Paltani, F. Pasian, K. Pedersen, W. J. Percival, V. Pettorino, S. Pires, G. Polenta, Marion Poncet, L. A. Popa, F. Raison, A. Renzi, Jason Rhodes, G. Riccio, E. Romelli, M. Roncarelli, Cyrille Rosset, E. Rossetti, R. Saglia, Ziad Bou Sakr, A. G. Sánchez, D. Sapone, B. Sartoris, M. Schirmer, Peter Schneider, M. Scodeggio, A. Secroun, G. Seidel, S. Serrano, Pascal Simon, Chiara Sirignano, G. Sirri, L. Stanco, J. Steinwagner, P. Tallada-Crespí, D. Tavagnacco, A. N. Taylor, I. Tereno, Sune Toft, R. Toledo-Moreo, F. Torradeflot, I. Tutusaus, J. Valiviita, T. Vassallo, A. Veropalumbo, Y. Wang, J. Weller, A. Zacchei, F. M. Zerbi, Elena Zucca, Maria Pia Ballardini, M. Bolzonella, Emanuele Bozzo, Carlo Burigana, R. A. Cabanac, M. Calabrese, A. Cappi, T. Castro, J. A. Escartin Vigo, G. Fabbian, L. Gabarra, J. García-Bellido, V. Gautard, S. Hemmati, J. Macias-Perez, R. Maoli, J. Martín-Fleitas, N. Mauri, R. B. Metcalf, Paola Monaco, A Pezzotta, M. Pöntinen, I. Risso, V. Scottez, M. Sereno, M. Tenti, Marco Tucci, M. Viel, M. Wiesmann, Y. Akrami, G. Alguero, I. T. Andika, G. Angora, Stefano Anselmi, Maria Archidiacono, F. Atrio‐Barandela, L. Bazzanini, Daniele Bertacca, M. Bethermin, Florian Beutler, A. Blanchard, L. Blot, M. Bonici, S. Borgani, M. L. Brown, S. Bruton, Antonello Calabrò, B. Camacho Quevedo, F Caro, C. S. Carvalho, Y. Charles, A. R. Cooray, O. Cucciati, S. Davini, Francesco De Paolis, G. Desprez, A. Díaz-Sánchez, S. Di Domizio, J. M. Diego, Véronique Duret, M. Y. Elkhashab, A. Enia, Yuedong Fang, A. G. Ferrari, A. Finoguenov, A. Fontana, A. Franco, K.M. Ganga, T. Gasparetto, E. Gaztanaga, F. Giacomini, F. Gianotti, Ghassem Gozaliasl, A. Gruppuso, M. Guidi, C. M. Gutierrez, Andrew M. Hall, H. Hildebrandt, J. Hjorth, J. J. E. Kajava, Yongtian Kang, V. Kansal, D. Karagiannis, K. Kiiveri, J. Kim, C. C. Kirkpatrick, Sandor Kruk, M. Lattanzi, L. Legrand, F. Lepori, Gavin Leroy, G. F. Lesci, J. Lesgourgues, T. I. Liaudat, M. Magliocchetti, A. Manjón-García, F. Mannucci, C. J. A. P. Martins, L. Maurin, M. Miluzio, A Montoro, C. Moretti, Giuanluca Morgante, S. Nadathur, K. Naidoo, P. Natoli, A. Navarro-Alsina, S. Nesseris, Luca Pagano, E. Palazzi, D. Paoletti, Francesca Passalacqua, K. Paterson, L. Patrizii, A Pisani, D. Potter, G. W. Pratt, S. Quai, M. Radovich, W. Roster, S. Sacquegna, M. Sahlén, D. B. Sanders, E. Sarpa, A. Schneider, D Sciotti, Elena Sellentin, L. C. Smith, K. Tanidis, F. Tarsitano, G. Testera, Romain Teyssier, S. Tosi, A. Troja, A. Venhola, D. Vergani, G. Verza, P. Vielzeuf, S. Vinciguerra, N. A. Walton, A. H. Wright
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147Institutions déclarées
23Pays d’affiliation déclarés
Rattachement africain : it, fr, es, de, pt, nl, gb, ch, no, us, dk, fi, ca, ro, lb, cl, rs, jp, sk, au, Afrique du Sud, se, in.
Niveau de preuve : code pays fourni par la source.
Le résumé fourni par la source
The Euclid spacecraft, located at the second Lagrangian point of the Sun-Earth system, hosts the Near-Infrared Spectrometer and Photometer (NISP) instrument. NISP is equipped with a mosaic of 16 HgCdTe-based detectors to acquire near-infrared photometric and spectroscopic data. To meet the spacecraft's constraints on computational resources and telemetry bandwidth, the near-infrared signal is processed onboard via a dedicated hardware-software architecture designed to fulfil the stringent Euclid's data-quality requirements. A custom application software, running on the two NISP data processing units, implements the NISP signal estimator: an ad-hoc algorithm which delivers accurate flux measurements and simultaneously estimates the quality of signal estimation through the quality factor parameter. This paper investigates the properties of the NISP signal estimator by evaluating its performance during the early flight operations of the NISP instrument. First, we revisit the assumptions on which the inference of the near-infrared signal is based and investigate the origin of the main systematics of the signal estimator through Monte Carlo simulations. Then, we test the flight performance of the NISP signal estimator. Results indicate a systematic bias lower than 0.01 e/s for 99% of the NISP pixel array, well within the noise budget of the estimated signal. We also derive an analytical expression for the variance of the NISP signal estimator, demonstrating its validity, particularly when the covariance matrix is not pre-computed. Finally, we provide a robust statistical framework to interpret the QF parameter, analyse its dependence on the signal estimator bias, and show its sensitivity to cosmic ray hits on NISP detectors. Our findings corroborate previous results on the NISP signal estimator and suggest a leading-order correction based on the agreement between flight data and simulations.
Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.
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Les institutions déclarées
Osservatorio di Astrofisica e Scienza dello SpazioUniversity of BolognaLyon 1 UniversitéCentre National de la Recherche ScientifiqueInstitut National de Physique Nucléaire et de Physique des ParticulesInstitut de Physique des 2 Infinis de LyonIstituto Nazionale di Fisica Nucleare, Sezione di BolognaUniversité Paris-SaclayInstitut d'Astrophysique SpatialeEuropean Space Astronomy CentreBrera Astronomical ObservatoryScuola Internazionale Superiore di Studi AvanzatiUniversity of TriesteTrieste Astronomical ObservatoryIstituto Nazionale di Fisica Nucleare, Sezione di TriesteInstitute for Fundamental Physics of the UniverseOsservatorio Astronomico di PadovaIstituto Nazionale di Fisica Nucleare, Sezione di GenovaUniversity of GenoaAstronomical Observatory of CapodimonteEuropean Southern ObservatoryUniversidade do PortoInstitute of Astrophysics and Space SciencesIstituto Nazionale di Fisica Nucleare, Sezione di TorinoOsservatorio Astrofisico di TorinoUniversity of TurinLeiden UniversityRoyal ObservatoryUniversity of EdinburghNational Institute for AstrophysicsPort d'Informació CientíficaCentro de Investigaciones Energéticas, Medioambientales y TecnológicasDeutsches Zentrum für Luft- und Raumfahrt e. V. (DLR)Astronomical Observatory of RomeIstituto Nazionale di Fisica Nucleare, Sezione di NapoliInstituto de Astrofísica de CanariasUniversity of ManchesterEuropean Space Research InstituteAix-Marseille UniversitéInstitució Catalana de Recerca i Estudis AvançatsInstitute of Space SciencesInstitut Català de Ciències del ClimaInstitut de Ciències del CosmosAgenzia Spaziale ItalianaUniversity of GenevaIstituto Nazionale di Fisica Nucleare, Sezione di PadovaCentre de physique des particules de MarseilleInstitute for Space Astrophysics and PlanetologyLMU KlinikumLudwig-Maximilians-Universität MünchenMax Planck Institute for Extraterrestrial PhysicsUniversity of OsloJet Propulsion LaboratoryUniversité Bourgogne Franche-ComtéDAWN Center for Independent LivingTechnical University of DenmarkInstitut d'Astrophysique de ParisSorbonne UniversitéMax Planck Institute for AstronomyGoddard Space Flight CenterHelsinki Institute of PhysicsUniversity of HelsinkiLaboratoire Univers et ThéoriesSKA ObservatoryCentre de Calcul de l’Institut National de Physique Nucléaire et de Physique des ParticulesUniversity of MilanIstituto Nazionale di Fisica Nucleare, Sezione di MilanoFHNW University of Applied Sciences and Arts Northwestern SwitzerlandUniversity of BonnIstituto Nazionale di Fisica Nucleare, Sezione di Roma IDurham UniversityUniversité Paris CitéÉcole Polytechnique Fédérale de LausanneEuropean Space AgencyInstitute for High Energy PhysicsEuropean Space Research and Technology CentreUniversity of CopenhagenUniversity of WaterlooPerimeter InstituteCommissariat à l'Énergie Atomique et aux Énergies AlternativesAstrophysique, Instrumentation et ModélisationCEA Paris-SaclayCentre National d'Études SpatialesInstitute of Space Science - INFLPR SubsidiaryUniversity of PaduaSaint Joseph UniversityHeidelberg UniversityInstitut de Recherche en Astrophysique et PlanétologieHeidelberg Institute for Theoretical StudiesUniversity of ChileInstitut d'Estudis Espacials de CatalunyaUniversity of LisbonUniversidad Politécnica de CartagenaCalifornia Institute of TechnologyInfrared Processing and Analysis CenterUniversity of FerraraIstituto Nazionale di Fisica Nucleare, Sezione di FerraraIstituto di Radioastronomia di BolognaOsservatorio Astronomico della Regione Autonoma Valle d'AostaAstronomical ObservatoryUniversité Côte d'AzurObservatoire de la Côte d’AzurInstitute for High Performance Computing and NetworkingUniversity of OxfordConsejo Superior de Investigaciones CientíficasUniversidad Autónoma de MadridInstitut de Recherche sur les Lois Fondamentales de l'UniversInstitut polytechnique de GrenobleUniversité Grenoble AlpesSapienza University of RomeUniversité Catholique de LilleCase Western Reserve UniversityTechnical University of MunichUniversité Paris Sciences et LettresUniversidad de SalamancaObservatoire astronomique de StrasbourgUniversité de StrasbourgKavli Institute for the Physics and Mathematics of the UniverseUniversity of California, IrvineUniversity of SalentoIstituto Nazionale di Fisica Nucleare, Sezione di LecceUniversity of GroningenInstituto de Física de CantabriaUniversity of PortsmouthAalto UniversityUniversidad de La LagunaAstronomical Institute of the Slovak Academy of SciencesRuhr University BochumUniversity of TurkuSerco (United Kingdom)ARC Centre of Excellence for Dark Matter Particle PhysicsSwinburne University of TechnologyUniversity of the Western CapeUniversity of CambridgeUniversity of ZurichArcetri Astrophysical ObservatoryCentro de Astrofísica da Universidade do PortoCollurania Teramo ObservatoryUppsala UniversityUniversity of Hawaii SystemETH ZurichPrinceton UniversityUniversity of OuluThe Abdus Salam International Centre for Theoretical Physics (ICTP)International Centre for Theoretical SciencesFlatiron Health (United States)Flatiron Institute
Une affiliation ne permet pas de déduire la nationalité d’un auteur.
Les sujets associés
Advanced Semiconductor Detectors and MaterialsAstro and Planetary ScienceCCD and CMOS Imaging Sensors