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

Matteo Munari; Demetrio Magrin; Roberto Ragazzoni; Isabella Pagano; Valentina Viotto; Jacopo Farinato; Simonetta Chinellato; Flavia Calderone; Luca Marafatto; Davide Greggio; Maria Bergomi; Marco Dima; Nicolas Gorius; Virginie Cessa; Francesca Molendini; Timothy Bandy; Daniele Piazza; Willy Benz; Alexis Brandeker; Andrea Novi; Enrico Battistelli; Matteo Burresi; Emanuele Capuano; Alessandro Grosso; Massimo Marinai; Marco Nebiolo; Mario Salatti; Heike Rauer; Yves Levillain; Jose L. Alvarez

doi:10.1117/12.2629598

27 August 2022 The PLATO TOU optical design: description, properties, and nominal performances

Matteo Munari, Demetrio Magrin, Roberto Ragazzoni, Isabella Pagano, Valentina Viotto, Jacopo Farinato, Simonetta Chinellato, Flavia Calderone, Luca Marafatto, Davide Greggio, Maria Bergomi, Marco Dima, Nicolas Gorius, Virginie Cessa, Francesca Molendini, Timothy Bandy, Daniele Piazza, Willy Benz, Alexis Brandeker, Andrea Novi, Enrico Battistelli, Matteo Burresi, Emanuele Capuano, Alessandro Grosso, Massimo Marinai, Marco Nebiolo, Mario Salatti, Heike Rauer, Yves Levillain, Jose L. Alvarez

Author Affiliations +

Proceedings Volume 12180, Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave; 121804I (2022) https://doi.org/10.1117/12.2629598
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Conference Poster

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.

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Matteo Munari, Demetrio Magrin, Roberto Ragazzoni, Isabella Pagano, Valentina Viotto, Jacopo Farinato, Simonetta Chinellato, Flavia Calderone, Luca Marafatto, Davide Greggio, Maria Bergomi, Marco Dima, Nicolas Gorius, Virginie Cessa, Francesca Molendini, Timothy Bandy, Daniele Piazza, Willy Benz, Alexis Brandeker, Andrea Novi, Enrico Battistelli, Matteo Burresi, Emanuele Capuano, Alessandro Grosso, Massimo Marinai, Marco Nebiolo, Mario Salatti, Heike Rauer, Yves Levillain, and Jose L. Alvarez "The PLATO TOU optical design: description, properties, and nominal performances", Proc. SPIE 12180, Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave, 121804I (27 August 2022); https://doi.org/10.1117/12.2629598

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