METIS, the Mid-Infrared ELT Imager and Spectrograph, is one of the four first-generation ELT instruments scheduled to see first light in 2028. Its two main science modules are supported by an adaptive optics system featuring a pyramid sensor with 90x90 subapertures working in the H and K bands. During the PDR and FDR phases, extensive simulations were carried out to support the sensing, reconstruction, and control concept of METIS single-conjugate adaptive optics (SCAO) system. We present details on the implementation of the COMPASS-based environment used for the simulations, the metrics used for analyzing our performance expectations, an overview of the main results, and some details on special cases like non-common path aberrations (NCPA) and water vapor seeing, as well as the low-wind effect.
@article{arxiv.2311.13437,
title = {Simulating METIS SCAO System},
author = {Markus Feldt and Horst Steuer and Carlos Correia and Andreas Obereder and Stefan Raffetseder and Thomas Bertram and Julia Shatokina and Faustine Cantalloube},
journal= {arXiv preprint arXiv:2311.13437},
year = {2023}
}
Comments
17 pages, 14 Figures, AO4ELT VII Conference - Avignon - June 2023