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Proceedings Paper

ALTAIR performance and updates at Gemini North
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Paper Abstract

We present up-to-date performance characteristics for natural guide star (NGS) operation of the ALTAIR adaptive optics system at the Gemini N. 8m telescope. These results are obtained from a nightly performance monitoring campaign where we obtain a consistent set of point spread functions (PSFs) over a broad range of observing conditions. These results are compared with system modelling and circular buffer information from the Altair adaptive optics (AO) system. The latter show residual tip-tilt errors with a median rms ~ 18.5 mas. We also present preliminary results from a new operational mode of the laser guide star (LGS) AO which will eventually yield all-sky access with image FWHM ~ 0.1" - 0.2".

Paper Details

Date Published: 12 July 2010
PDF: 12 pages
Proc. SPIE 7736, Adaptive Optics Systems II, 77361R (12 July 2010); doi: 10.1117/12.856776
Show Author Affiliations
Julian C. Christou, Gemini Observatory (United States)
Benoit Neichel, Gemini Observatory (Chile)
Francois Rigaut, Gemini Observatory (Chile)
Michael Sheehan, Gemini Observatory (United States)
Richard M. McDermid, Gemini Observatory (United States)
Gelys Trancho, Gemini Observatory (Chile)
Chadwick Trujillo, Gemini Observatory (United States)
Brian Walls, Gemini Observatory (United States)

Published in SPIE Proceedings Vol. 7736:
Adaptive Optics Systems II
Brent L. Ellerbroek; Michael Hart; Norbert Hubin; Peter L. Wizinowich, Editor(s)

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