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Proceedings Paper

Manufacturing and alignment tolerance analysis through Montecarlo approach for PLATO
Author(s): Demetrio Magrin; Roberto Ragazzoni; Maria Bergomi; Federico Biondi; Simonetta Chinellato; Marco Dima; Jacopo Farinato; Davide Greggio; Marco Gullieuszik; Luca Marafatto; Valentina Viotto; Matteo Munari; Isabella Pagano; Daniela Sicilia; Stefano Basso; Francesco Borsa; Mauro Ghigo; Daniele Spiga; Timothy Bandy; Mathias Brändli; Willy Benz; Giordano Bruno; Thierry De Roche; Daniele Piazza; Martin Rieder; Alexis Brandeker; Maximilian Klebor; Valery Mogulsky; Mario Schweitzer; Matthias Wieser; Anders Erikson; Heike Rauer
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Paper Abstract

The project PLAnetary Transits and Oscillations of stars (PLATO) is one of the selected medium class (M class) missions in the framework of the ESA Cosmic Vision 2015-2025 program. The main scientific goal of PLATO is the discovery and study of extrasolar planetary systems by means of planetary transits detection. According to the current baseline, the scientific payload consists of 34 all refractive telescopes having small aperture (120mm) and wide field of view (diameter greater than 37 degrees) observing over 0.5-1 micron wavelength band. The telescopes are mounted on a common optical bench and are divided in four families of eight telescopes with an overlapping line-of-sight in order to maximize the science return. Remaining two telescopes will be dedicated to support on-board star-tracking system and will be specialized on two different photometric bands for science purposes. The performance requirement, adopted as merit function during the analysis, is specified as 90% enclosed energy contained in a square having size 2 pixels over the whole field of view with a depth of focus of +/-20 micron. Given the complexity of the system, we have followed a Montecarlo analysis approach for manufacturing and alignment tolerances. We will describe here the tolerance method and the preliminary results, speculating on the assumed risks and expected performances.

Paper Details

Date Published: 29 July 2016
PDF: 11 pages
Proc. SPIE 9904, Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave, 99042Z (29 July 2016); doi: 10.1117/12.2232565
Show Author Affiliations
Demetrio Magrin, INAF - Osservatorio Astronomico di Padova (Italy)
Roberto Ragazzoni, INAF - Osservatorio Astronomico di Padova (Italy)
Maria Bergomi, INAF - Osservatorio Astronomico di Padova (Italy)
Federico Biondi, INAF - Osservatorio Astronomico di Padova (Italy)
Simonetta Chinellato, INAF - Osservatorio Astronomico di Padova (Italy)
Marco Dima, INAF - Osservatorio Astronomico di Padova (Italy)
Jacopo Farinato, INAF - Osservatorio Astronomico di Padova (Italy)
Davide Greggio, INAF - Osservatorio Astronomico di Padova (Italy)
Univ. degli Studi di Padova (Italy)
Marco Gullieuszik, INAF - Osservatorio Astronomico di Padova (Italy)
Luca Marafatto, INAF - Osservatorio Astronomico di Padova (Italy)
Valentina Viotto, INAF - Osservatorio Astronomico di Padova (Italy)
Matteo Munari, INAF - Osservatorio Astrofisico di Catania (Italy)
Isabella Pagano, INAF - Osservatorio Astrofisico di Catania (Italy)
Daniela Sicilia, INAF - Osservatorio Astrofisico di Catania (Italy)
Stefano Basso, INAF - Osservatorio Astronomico di Brera (Italy)
Francesco Borsa, INAF - Osservatorio Astronomico di Brera (Italy)
Mauro Ghigo, INAF - Osservatorio Astronomico di Brera (Italy)
Daniele Spiga, INAF - Osservatorio Astronomico di Brera (Italy)
Timothy Bandy, Univ. of Bern (Switzerland)
Mathias Brändli, Univ. of Bern (Switzerland)
Willy Benz, Univ. of Bern (Switzerland)
Giordano Bruno, Univ. of Bern (Switzerland)
Thierry De Roche, Univ. of Bern (Switzerland)
Daniele Piazza, Univ. of Bern (Switzerland)
Martin Rieder, Univ. of Bern (Switzerland)
Alexis Brandeker, Stockholm Univ. (Sweden)
Maximilian Klebor, OHB System AG (Germany)
Valery Mogulsky, OHB-System AG (Germany)
Mario Schweitzer, OHB-System AG (Germany)
Matthias Wieser, OHB System AG (Germany)
Anders Erikson, DLR - Institut für Planetenforschung (Germany)
Heike Rauer, DLR - Institut für Planetenforschung (Germany)


Published in SPIE Proceedings Vol. 9904:
Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave
Howard A. MacEwen; Giovanni G. Fazio; Makenzie Lystrup; Natalie Batalha; Nicholas Siegler; Edward C. Tong, Editor(s)

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