Chioetto, Paolo;
Araiza-Durán, José Antonio;
Barozzi, Umberto;
Barubiani, Lorenzo;
Bishop, Georgia;
Bocchieri, Andrea;
Brienza, Daniele;
... Zuppella, Paola; + view all
(2024)
Planning the integration and test of a space telescope with a 1 m aluminum primary mirror: the Ariel mission case.
In: Coyle, Laura E and Perrin, Marshall D and Matsuura, Shuji, (eds.)
Proceedings of the Space Telescopes and Instrumentation 2024: Optical, Infrared, and Millimeter Wave.
(pp. p. 301).
Society of Photo-Optical Instrumentation Engineers (SPIE)
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Abstract
Ariel (Atmospheric Remote-Sensing Infrared Exoplanet Large Survey) is ESA’s M4 mission of the “Cosmic Vision” program, with launch scheduled for 2029. Its purpose is to conduct a survey of the atmospheres of known exoplanets through transit spectroscopy. Ariel is based on a 1 m class telescope optimized for spectroscopy in the waveband between 1.95 and 7.8 µm, operating at cryogenic temperatures in the range 40–50 K. The Ariel Telescope is an off-axis, unobscured Cassegrain design, with a parabolic recollimating tertiary mirror and a flat folding mirror directing the output beam parallel to the optical bench. The secondary mirror is mounted on a roto-translating stage for adjustments during the mission. The mirrors and supporting structures are all realized in an aerospace-grade aluminum alloy T6061 for ease of manufacturing and thermalization. The low stiffness of the material, however, poses unique challenges to integration and alignment. Care must be therefore employed when designing and planning the assembly and alignment procedures, necessarily performed at room temperature and with gravity, and the optical performance tests at cryogenic temperatures. This paper provides a high-level description of the Assembly, Integration and Test (AIT) plan for the Ariel telescope and gives an overview of the analyses and reasoning that led to the specific choices and solutions adopted.
| Type: | Proceedings paper |
|---|---|
| Title: | Planning the integration and test of a space telescope with a 1 m aluminum primary mirror: the Ariel mission case |
| Event: | Space Telescopes and Instrumentation 2024: Optical, Infrared, and Millimeter Wave |
| Location: | Yokohama, Japan |
| Dates: | 16th- 22nd June 2024 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1117/12.3018650 |
| Publisher version: | http://dx.doi.org/10.1117/12.3018650 |
| 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. |
| 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/10197942 |
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