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PLATO EM first cryogenic vacuum test campaign PSF results

Borsa, F. and Cottinelli, Andrea and Gorius, Nicolas and Arena, Claudio and Vandenbussche, Bart and Regibo, Sara and Huygen, Rik and Royer, Pierre and Pertenais, Martin and Martin Garcia, Cesar and Appourchaux, Thierry and Alvarez, Jose Lorenzo and van Kempen, Tim A. and Laauwen, Wouter and Pagano, Isabella and Ragazzoni, Roberto (2022) PLATO EM first cryogenic vacuum test campaign PSF results. In: Proceedings of SPIE - The International Society for Optical Engineering, 12180, 121801D. SPIE. Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave, Montréal, Canada. doi: 10.1117/12.2630118. ISSN 0277-786X.

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Official URL: https://www.spiedigitallibrary.org/conference-proceedings-of-spie/12180/2630118/PLATO-EM-first-cryogenic-vacuum-test-campaign-PSF-results/10.1117/12.2630118.full


PLATO (PLAnetary Transits and Oscillations of stars) is a European Space Agency medium class mission, whose launch is foreseen for 2026. Its primary goal is to discover and characterise terrestrial exoplanets orbiting the habitable zone of their host stars. This goal will be reached with a set of 26 wide field-of-view cameras mounted on a common optical bench. Here we show some results of the first cryogenic vacuum test campaign made on the Engineering Model (EM) of one PLATO camera, performed at the Netherlands Institute for Space Research (SRON). In particular we present the search for the best focus temperature, which was done first by using a Hartmann mask, and then by maximizing the ensquared energy fractions of the point spread functions (PSFs) on the entire field of view taken at different temperature plateaus. Furthermore we present the PSF properties of the EM at the nominal focus temperature over all the field of view, focusing on the ensquared energy fractions. The Engineering Model camera was successfully integrated and validated under cryo-vacuum tests, allowing the mission to pass ESA’s Critical Milestone, and confirming the mission is on track for launch in 2026.

Item URL in elib:https://elib.dlr.de/188677/
Document Type:Conference or Workshop Item (Speech)
Title:PLATO EM first cryogenic vacuum test campaign PSF results
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Borsa, F.INAF – Osservatorio Astronomico di Brera, Via Brera 28, 20121 Milano, ItalyUNSPECIFIED
Cottinelli, AndreaINAF - Osservatorio Astronomico di Padova (Italy)UNSPECIFIED
Gorius, NicolasINAF - Osservatorio Astrofisico di Catania (Italy)UNSPECIFIED
Arena, ClaudioINAF - Osservatorio Astrofisico di Catania (Italy)UNSPECIFIED
Vandenbussche, BartKU Leuven (Belgium)UNSPECIFIED
Regibo, SaraKU Leuven (Belgium)UNSPECIFIED
Huygen, RikKU Leuven (Belgium)UNSPECIFIED
Royer, PierreKU Leuven (Belgium)UNSPECIFIED
Pertenais, MartinDLR, Institut für Optische SensorsystemeUNSPECIFIED
Appourchaux, ThierryInstitut d'Astrophysique Spatiale (France)UNSPECIFIED
Alvarez, Jose LorenzoEuropean Space Research and Technology Ctr. (Netherlands)UNSPECIFIED
van Kempen, Tim A.SRON Netherlands Institute for Space Research (Netherlands)UNSPECIFIED
Laauwen, WouterSRON Netherlands Institute for Space Research (Netherlands)UNSPECIFIED
Pagano, IsabellaINAF - Osservatorio Astrofisico di Catania (Italy)UNSPECIFIED
Ragazzoni, RobertoINAF - Osservatorio Astronomico di Padova (Italy) ; Univ. degli Studi di Padova (Italy)UNSPECIFIED
Journal or Publication Title:Proceedings of SPIE - The International Society for Optical Engineering
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:121801D
Keywords:PLATO, Best focus search, PSF, Hartmann mask, Ensquared energy fractions
Event Title:Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave
Event Location:Montréal, Canada
Event Type:international Conference
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 - Project PLATO - PMC and Science
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Optical Sensor Systems
Institute of Optical Sensor Systems > Space Instruments
Institute of Planetary Research > Extrasolar Planets and Atmospheres
Deposited By: Pertenais, Martin
Deposited On:05 Oct 2022 09:09
Last Modified:03 Nov 2022 11:12

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