Influence of restricted FOV and CCD binning in SH-WFS on the performance of NAOMI

Ilona K. Soechting; Richard W. Wilson; Richard M. Myers; Andy J. Longmore; Chris R. Benn; Roy Ostensen; Sebastian Els; Steven Goodsell; Tom Gregory; Gordon Talbot

doi:10.1117/12.552046

25 October 2004 Influence of restricted FOV and CCD binning in SH-WFS on the performance of NAOMI

Ilona K. Soechting, Richard W. Wilson, Richard M. Myers, Andy J. Longmore, Chris R. Benn, Roy Ostensen, Sebastian Els, Steven Goodsell, Tom Gregory, Gordon Talbot

Author Affiliations +

Proceedings Volume 5490, Advancements in Adaptive Optics; (2004) https://doi.org/10.1117/12.552046
Event: SPIE Astronomical Telescopes + Instrumentation, 2004, Glasgow, United Kingdom

Abstract

Using a unique combination of empirical data collected simultaneously by the science camera (INGRID) and the wave front sensor in NAOMI plus the same night profiles of the turbulent layers measured by SLODAR, we discuss the accuracy of the analytic approach to modelling of AO performance. The WFS frames recorded for different atmospheric conditions allow us to make a detailed investigation of the influence of a restricted field of view and sampling of the WFS on the accuracy of the centre of gravity and its propagation to the residual variance. The predictions of Strehl, FWHM and FWHE derived for NAOMI+INGRID using our analytic approach are compared with on-sky performance demonstrated during the commissioning and science observations with NAOMI.

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Ilona K. Soechting, Richard W. Wilson, Richard M. Myers, Andy J. Longmore, Chris R. Benn, Roy Ostensen, Sebastian Els, Steven Goodsell, Tom Gregory, and Gordon Talbot "Influence of restricted FOV and CCD binning in SH-WFS on the performance of NAOMI", Proc. SPIE 5490, Advancements in Adaptive Optics, (25 October 2004); https://doi.org/10.1117/12.552046

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