PSF nowcast using PASSATA simulations: towards a PSF forecast

A. Turchi; A. Agapito; E. Masciadri; O. Beltramo-Martin; J. Milli; C. Plantet; F. Rossi; E. Pinna; J. F. Sauvage; B. Neichel; T. Fusco

doi:10.1117/12.2629455

29 August 2022 PSF nowcast using PASSATA simulations: towards a PSF forecast

A. Turchi, A. Agapito, E. Masciadri, O. Beltramo-Martin, J. Milli, C. Plantet, F. Rossi, E. Pinna, J. F. Sauvage, B. Neichel, T. Fusco

Author Affiliations +

Proceedings Volume 12185, Adaptive Optics Systems VIII; 121855V (2022) https://doi.org/10.1117/12.2629455
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Conference Poster

Abstract

Characterizing the PSF of adaptive optics instruments is of paramount importance both for instrument design and observation planning/optimization. Simulation software, such as PASSATA, have been successfully utilized for PSF characterization in instrument design, which make use of standardized atmospheric turbulence profiles to produce PSFs that represent the typical instrument performance. In this contribution we study the feasibility of using such tool for nowcast application (present-time forecast), such as the characterization of an on-sky measured PSF in real observations. Specifically we will analyze the performance of the simulation software in characterizing the real-time PSF of two different state-of-the-art SCAO adaptive optics instruments: SOUL at the LBT, and SAXO at the VLT. The study will make use of on-sky measurements of the atmospheric turbulence and compare the results of the simulations to the measured PSF figures of merit (namely the FHWM and the Strehl Ratio) retrieved from the instrument telemetry in real observations. Our main goal in this phase is to quantify the level of uncertainly of the AO simulations in reproducing real on-sky observed PSFs with an end-to-end code (PASSATA). In a successive phase we intend to use a faster analytical code (TIPTOP). This work is part of a wider study which aims to use simulation tools joint to atmospheric turbulence forecasts performed nightly to forecast in advance the PSF and support science operations of ground-based telescopes facilities. The ‘PSF forecast’ option might therefore be added to ALTA Center or the operational forecast system that will be implemented soon at ESO.

Citation Download Citation

A. Turchi, A. Agapito, E. Masciadri, O. Beltramo-Martin, J. Milli, C. Plantet, F. Rossi, E. Pinna, J. F. Sauvage, B. Neichel, and T. Fusco "PSF nowcast using PASSATA simulations: towards a PSF forecast", Proc. SPIE 12185, Adaptive Optics Systems VIII, 121855V (29 August 2022); https://doi.org/10.1117/12.2629455

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available