Authors

Laurent Jolissaint Chris Neyman Peter Wizinowich Julian Christou

Affiliations

aquilAOptics W.M. Keck Foundation W.M. Keck Foundation Gemini Observatory

Abstract

Estimating the point spread function across the imaged field, for a given AO run, is critical for AO data reduction. In this talk I will describe our recent progress (Summer 2011) on PSF reconstruction for the Gemini North (ALTAIR) and Keck NGS based AO systems. I will shortly re-introduce the basic theory, but will put the emphasize on practical implementation issues we are facing at this two facilities, in particular how we handle and determine/calibrate the non-turbulent aberrations (telescope, instrument optics) whose amplitude can be as large as the turbulent aberrations.