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Proceedings Paper

Sky coverage and tip/tilt error analysis for TMT
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Paper Abstract

A Monte Carlo sky coverage model for laser guide star adaptive optics systems is presented. This model provides fast Monte Carlo simulations of the tip/tilt (TT) wavefront error calculated with minimum variance estimators over natural guide star constellations generated from star models. With this simulation code we are able to generate a TT error budget for the Thirty Metre Telescope (TMT) facility Narrow Field Infra-Red Adaptive Optics System (NFIRAOS), and perform several design trade studies. With the current NFIRAOS design, the median TT error at the galactic pole with median seeing is calculated to be 65 nm or 1.8 mas.

Paper Details

Date Published: 28 June 2006
PDF: 12 pages
Proc. SPIE 6272, Advances in Adaptive Optics II, 627232 (28 June 2006); doi: 10.1117/12.669680
Show Author Affiliations
Richard M. Clare, Thirty Meter Telescope Project (United States)
Brent L. Ellerbroek, Thirty Meter Telescope Project (United States)
Jean-Pierre Véran, Herzberg Institute of Astrophysics (Canada)
Glen Herriot, Herzberg Institute of Astrophysics (Canada)
David Andersen, Herzberg Institute of Astrophysics (Canada)

Published in SPIE Proceedings Vol. 6272:
Advances in Adaptive Optics II
Brent L. Ellerbroek; Domenico Bonaccini Calia, Editor(s)

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