Simulating METIS SCAO System

Markus Feldt; Horst Steuer; Carlos Correia; Andreas Obereder; Stefan Raffetseder; Thomas Bertram; Julia Shatokina; Faustine Cantalloube

arXiv · 2311.13437

Simulating METIS SCAO System

Markus Feldt·Horst Steuer·Carlos Correia·Andreas Obereder·Stefan Raffetseder·Thomas Bertram·Julia Shatokina·Faustine Cantalloube

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Abstract

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.

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Markus Feldt, Horst Steuer, Carlos Correia, Andreas Obereder, Stefan Raffetseder, Thomas Bertram, Julia Shatokina, Faustine Cantalloube. 2023-11-22. Simulating METIS SCAO System. https://arxiv.org/abs/2311.13437

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