Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/26636
Title: | The afocal telescope of the ESA ARIEL mission: analysis of the layout | Authors: | Da Deppo, Vania Middleton, Kevin FOCARDI, MAURO MORGANTE, GIANLUCA Corso, Alain Jody Pace, Emanuele CLAUDI, Riccardo MICELA, Giuseppina |
Issue Date: | 2017 | Volume: | UV/Optical/IR Space Telescopes and Instruments: Innovative Technologies and Concepts VIII | Editors: | MacEwen, Howard A.; Breckinridge, James B. | Series: | PROCEEDINGS OF SPIE | Number: | 10398 | First Page: | 1039812 | Abstract: | ARIEL (Atmospheric Remote-sensing Infrared Exoplanet Large-survey) is one of the three present candidates as an M4 ESA mission to be launched in 2026. During its foreseen 3.5 years operation, it will observe spectroscopically in the infrared a large population of known transiting planets in the neighborhood of the Solar System. The aim is to enable a deep understanding of the physics and chemistry of these exoplanets. ARIEL is based on a 1-m class telescope ahead of a suite of instruments: two spectrometer channels covering the band 1.95 to 7.8 μm and four photometric channels (two wide and two narrow band) in the range 0.5 to 1.9 μm. The ARIEL optical design is conceived as a fore-module common afocal telescope that will feed the spectrometer and photometric channels. The telescope optical design is based on an eccentric pupil two-mirror classic Cassegrain configuration coupled to a tertiary paraboloidal mirror. The temperature of the primary mirror (M1) will be monitored and finely tuned by means of an active thermal control system based on thermistors and heaters. They will be switched on and off to maintain the M1 temperature within ±1 K thanks to a proportional-integral-derivative (PID) controller implemented within the Telescope Control Unit (TCU), a Payload electronics subsystem mainly in charge of the active thermal control of the two detectors owning to the spectrometer. TCU will collect the housekeeping data of the controlled subsystems and will forward them to the spacecraft (S/C) by means of the Instrument Control Unit (ICU), the main Payload's electronic Unit linked to the S/C On Board Computer (OBC). | Conference Name: | UV/Optical/IR Space Telescopes and Instruments: Innovative Technologies and Concepts VIII | Conference Place: | San Diego, California, United States | Conference Date: | 6-10 August, 2017 | URI: | http://hdl.handle.net/20.500.12386/26636 | URL: | https://www.spiedigitallibrary.org/conference-proceedings-of-spie/10398/1039812/The-afocal-telescope-of-the-ESA-ARIEL-mission--analysis/10.1117/12.2273197.short | ISSN: | 0277-786X | ISBN: | 9781510612549 9781510612532 |
DOI: | 10.1117/12.2273197 | Bibcode ADS: | 2017SPIE10398E..12D | Fulltext: | open |
Appears in Collections: | 3.01 Contributi in Atti di convegno |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
SPIE 2017 - The afocal telescope of the ESA ARIEL mission - analysis of the layout.pdf | Pdf editoriale | 1.07 MB | Adobe PDF | View/Open |
Page view(s)
90
checked on Aug 7, 2024
Download(s)
44
checked on Aug 7, 2024
Google ScholarTM
Check
Altmetric
Altmetric
Items in DSpace are published in Open Access, unless otherwise indicated.