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The instrument control unit of the ARIEL payload: design evolution following the unit and payload subsystems SRR (system requirements review)

Noce, Vladimiro; Focardi, Mauro; Di Giorgio, Anna Maria; Galli, Emanuele; Farina, Maria; Giusi, Giovanni; Vela Nunez, Marina; ... Gottini, Daniele; + view all (2022) The instrument control unit of the ARIEL payload: design evolution following the unit and payload subsystems SRR (system requirements review). In: Proceedings of the Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave. (pp. pp. 1-12). SPIE Green open access

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Abstract

ARIEL (Atmospheric Remote-sensing InfraRed Large-survey) is a medium-class mission of the European Space Agency, part of the Cosmic Vision program, whose launch is foreseen by early 2029. ARIEL aims to study the composition of exoplanet atmospheres, their formation and evolution. The ARIEL’s target will be a sample of about 1000 planets observed with one or more of the following methods: transit, eclipse and phase-curve spectroscopy, at both visible and infrared wavelengths simultaneously. The scientific payload is composed by a reflective telescope having a 1m-class elliptical primary mirror, built in solid Aluminium, and two focal-plane instruments: FGS and AIRS. FGS (Fine Guidance System)1 has the double purpose, as suggested by its name, of performing photometry (0.50-0.55 µm) and low resolution spectrometry over three bands (from 0.8 to 1.95 µm) and, simultaneously, to provide data to the spacecraft AOCS (Attitude and Orbit Control System) with a cadence of 10 Hz and contributing to reach a 0.02 arcsec pointing accuracy for bright targets. AIRS (ARIEL InfraRed Spectrometer) instrument will perform IR spectrometry in two wavelength ranges: between 1.95 and 3.9 µm (with a spectral resolution R > 100) and between 3.9 and 7.8 µm with a spectral resolution R > 30. This paper provides the status of the ICU (Instrument Control Unit), an electronic box whose purpose is to command and supply power to AIRS (as well as acquire science data from its two channels) and to command and control the TCU (Telescope Control Unit).

Type: Proceedings paper
Title: The instrument control unit of the ARIEL payload: design evolution following the unit and payload subsystems SRR (system requirements review)
Event: Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave
Location: Montréal, Québec, Canada
Dates: 17th- 23rd July 2022
Open access status: An open access version is available from UCL Discovery
DOI: 10.1117/12.2628172
Publisher version: https://doi.org/10.1117/12.2628172
Language: English
Additional information: This version is the version of record. For information on re-use, please refer to the publisher's terms and conditions.
Keywords: Exoplanets atmospheres, NIR spectroscopy, Infrared radiation, Infrared telescopes, Remote sensing, Instrument Control Unit
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy
URI: https://discovery-pp.ucl.ac.uk/id/eprint/10159737
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