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The PLATO TOU optical design: description, properties, and nominal performances

Munari, M. and Magrin, D. and Ragazzoni, R. and Pagano, I. and Viotto, V. and Farinato, J. and Chinellato, S. and Calderone, Flavia and Marafatto, L. and Greggio, D. and Bergomi, M. and Dima, M. and Gorius, Nicolas and Cessa, Virginie and Molendini, Francesca and Bandy, Timothy and Piazza, Daniele and Benz, W. and Brandeker, A. and Novi, Andrea and Grosso, Alessandro and Marinai, Massimo and Nebiolo, Marco and Salatti, M. and Rauer, H and Levillain, Yves and Alvarez, Jose Lorenzo (2022) The PLATO TOU optical design: description, properties, and nominal performances. In: Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave, 12180. SPIE Astronomical Telescopes + Instrumentation, August 2022, Montréal, Québec, Canada. doi: 10.1117/12.2629598. ISBN 978-1-5106-5342-9. ISSN 0277-786X.

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Official URL: https://www.spiedigitallibrary.org/conference-proceedings-of-spie/12180/2629598/The-PLATO-TOU-optical-design--description-properties-and-nominal/10.1117/12.2629598.full?SSO=1

Abstract

The ESA M size mission PLATO (PLAnetary Transits and Oscillation of stars) is planned to be launched in the 2026, with the aim of discover exoplanets that will be characterized with unprecedented precision. The optical elements of PLATO are 26 small telescopes, the TOUs (Telescope Optical Units), that using partially overlapping Fields of View will permit instantaneous sky coverage larger than 2100 square degrees. Each TOU has an aperture of 120 mm diameter assured by an internal stop, and it is composed by 6 lenses, the frontal one having an aspherical surface and the last acting as field flattener. The mechanical structure is realized mainly in AlBeMet. We here describe the optical design, summarizing several optical properties (materials, coatings, etc.), and report on nominal performances of the TOU system.

Item URL in elib:https://elib.dlr.de/190161/
Document Type:Conference or Workshop Item (Poster)
Title:The PLATO TOU optical design: description, properties, and nominal performances
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Munari, M.INAF – Osservatorio Astrofisico di Catania, Via S.Sofia 78, 95123 Catania, ItalyUNSPECIFIEDUNSPECIFIED
Magrin, D.INAF – Osservatorio Astronomico di Padova, Vicolo dell’Osservatorio 5, 35122 Padova, ItalyUNSPECIFIEDUNSPECIFIED
Ragazzoni, R.INAF – Osservatorio Astronomico di Padova, Vicolo dell’Osservatorio 5, 35122 Padova, ItalyUNSPECIFIEDUNSPECIFIED
Pagano, I.INAF – Osservatorio Astrofisico di Catania, Via S.Sofia 78, 95123 Catania, ItalyUNSPECIFIEDUNSPECIFIED
Viotto, V.INAF – Osservatorio Astronomico di Padova, Vicolo dell’Osservatorio 5, 35122 Padova, ItalyUNSPECIFIEDUNSPECIFIED
Farinato, J.INAF – Osservatorio Astronomico di Padova, Vicolo dell’Osservatorio 5, 35122 Padova, ItalyUNSPECIFIEDUNSPECIFIED
Chinellato, S.INAF – Osservatorio Astronomico di Padova, Vicolo dell’Osservatorio 5, 35122 Padova, ItalyUNSPECIFIEDUNSPECIFIED
Calderone, FlaviaINAF - Osservatorio Astrofisico di Catania (Italy)UNSPECIFIEDUNSPECIFIED
Marafatto, L.INAF – Osservatorio Astronomico di Padova, Vicolo dell’Osservatorio 5, 35122 Padova, ItalyUNSPECIFIEDUNSPECIFIED
Greggio, D.INAF OAPd, Padova, ItalyUNSPECIFIEDUNSPECIFIED
Bergomi, M.INAF – Osservatorio Astronomico di Padova, Vicolo dell’Osservatorio 5, 35122 Padova, ItalyUNSPECIFIEDUNSPECIFIED
Dima, M.INAF – Osservatorio Astronomico di Padova, Vicolo dell’Osservatorio 5, 35122 Padova, ItalyUNSPECIFIEDUNSPECIFIED
Gorius, NicolasINAF - Osservatorio Astrofisico di Catania (Italy)UNSPECIFIEDUNSPECIFIED
Cessa, VirginieUniversity of Bern, SwitzerlandUNSPECIFIEDUNSPECIFIED
Molendini, FrancescaUniversity of Bern, SwitzerlandUNSPECIFIEDUNSPECIFIED
Bandy, TimothyUniversity of Bern, SwitzerlandUNSPECIFIEDUNSPECIFIED
Piazza, DanieleUniv. BernUNSPECIFIEDUNSPECIFIED
Benz, W.Univ. of Bern, SwitzerlandUNSPECIFIEDUNSPECIFIED
Brandeker, A.Department of Astronomy – Stockholm University, SE-106 91 Stockholm, SwedenUNSPECIFIEDUNSPECIFIED
Novi, AndreaLeonardo S.p.A. (Italy)UNSPECIFIEDUNSPECIFIED
Grosso, AlessandroLeonardo S.p.A. (Italy)UNSPECIFIEDUNSPECIFIED
Marinai, MassimoLeonardo S.p.A. (Italy)UNSPECIFIEDUNSPECIFIED
Nebiolo, MarcoThales Alenia Space (Italy)UNSPECIFIEDUNSPECIFIED
Salatti, M.Italian Space Agency, Via del Politecnico, 00133, Rome, ItalyUNSPECIFIEDUNSPECIFIED
Rauer, HUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Levillain, YvesEuropean Space Agency (Netherlands)UNSPECIFIEDUNSPECIFIED
Alvarez, Jose LorenzoEuropean Space Research and Technology Ctr. (Netherlands)UNSPECIFIEDUNSPECIFIED
Date:2022
Journal or Publication Title:Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:12180
DOI:10.1117/12.2629598
Series Name:Proceedings of SPIE
ISSN:0277-786X
ISBN:978-1-5106-5342-9
Status:Published
Keywords:PLATO, Telescope Optical Units, TOUs, exoplanet
Event Title:SPIE Astronomical Telescopes + Instrumentation
Event Location:Montréal, Québec, Canada
Event Type:international Conference
Event Dates:August 2022
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Space Exploration
DLR - Research theme (Project):R - PLATO: F-FEE
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Leitungsbereich PF
Deposited By: Schwarz, Sandra
Deposited On:18 Nov 2022 10:50
Last Modified:17 Nov 2023 13:16

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