Palomar adaptive optics project: status and performance

Details Palomar adaptive optics project: status and performance Palomar adaptive optics project: status and performance

Jul 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000spie.4007...31t&link_type=abstract

Proc. SPIE Vol. 4007, p. 31-40, Adaptive Optical Systems Technology, Peter L. Wizinowich; Ed.

Physics

Optics

50

Scientific paper

We describe the current performance of the Palomar 200 inch (5 m) adaptive optics system, which in December of 1998 achieved its first high order (241 actuators) lock on a natural guide star. In the K band (2.2 micrometer), the system has achieved Strehl ratios as high as 50% in the presence of 1.0 arcsecond seeing (0.5 micrometer). Predictions of the system's performance based on the analysis of real-time wavefront sensor telemetry data and an analysis based on a fitted Kolmogorov atmospheric model are shown to both agree with the observed science image performance. Performance predictions for various seeing conditions are presented and an analysis of the error budget is used to show which subsystems limit the performance of the AO system under various atmospheric conditions.

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