Thirty Meter Telescope astrometry error budget

DOI	Trouver le DOI : https://doi.org/10.1117/12.2057089
Auteur	Rechercher : Schöck, Matthias; Rechercher : Do, Tuan; Rechercher : Ellerbroek, Brent L.; Rechercher : Gilles, Luc; Rechercher : Herriot, Glen¹; Rechercher : Meyer, Leo; Rechercher : Suzuki, Ryuji; Rechercher : Wang, Lianqi; Rechercher : Yelda, Sylvana
Affiliation	Conseil national de recherches Canada. Infrastructure scientifique nationale
Format	Texte, Article
Conférence	Adaptive Optics Systems IV, June 22-27, 2014
Sujet	Calibration; Optical telescopes; Telescopes; Astrometric measurements; Astrometry; Extremely Large Telescopes; High resolution; Mitigation methods; Multi-conjugate adaptive optics systems; Reduction strategy; Thirty Meter Telescope; Adaptive optics
Résumé	The Thirty Meter Telescope (TMT) with its first-light multi-conjugate adaptive optics system, NFIRAOS, and high-resolution imager, IRIS, is expected to take differential astrometric measurements with an accuracy on the order of tens of micro arcsec. This requires the control, correction, characterization and calibration of a large number of error sources and uncertainties, many of which have magnitudes much in excess of this level of accuracy. In addition to designing the observatory such that very high precision and accuracy astrometric observations are enabled, satisfying the TMT requirements can only be achieved by a careful calibration, observation and data reduction strategy. In this paper, we present descriptions of the individual errors sources, how and when they apply to different astrometry science cases and the mitigation methods required for each of them, as well as example results for individual error terms and the overall error budgets for a variety of different science cases.
Date de publication	2014-07-21
Maison d’édition	SPIE
Dans	Adaptive Optics Systems IV, 91482L.
Série	Proceedings of SPIE, nº 9148.
Langue	anglais
Publications évaluées par des pairs	Oui
Numéro NPARC	21275540
Exporter la notice	Exporter en format RIS
Signaler une correction	Signaler une correction (s'ouvre dans un nouvel onglet)
Identificateur de l’enregistrement	bdbfb7ac-8f33-4544-83e7-b02c0e878f7c
Enregistrement créé	2015-07-14
Enregistrement modifié	2020-04-22

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