Real-time Strehl and image quality performance estimator at Paranal Observatory
Abstract
Here we describe a prototype Strehl and image quality performance estimator and its integration into Paranal operations, starting with UT4 and its suite of three infrared instruments: adaptive optics-fed imager/spectrograph NACO (temporarily out of operations) and integral field unit SINFONI, as well as wide-field imager HAWK-I. The real-time estimator processes the ambient conditions (seeing, coherence time, airmass, etc.) from the DIMM, and telescope Shack-Hartmann image analyzer to produce estimates of image quality and Strehl ratio every ~ 30 seconds. The estimate is using ad-hoc instrumental models, based in part on the PAOLA adaptive optics simulator. We discuss the current performance of the estimator vs real IQ and Strehl measurements, its impact on service mode efficiency, prospects for full deployment at other UTs, its use for the adaptive optics facility (AOF), and inclusion of the SLODAR-measured fine turbulence characteristics.
Additional Information
© 2014 Society of Photo-Optical Instrumentation Engineers (SPIE). Date Published: 5 September 2014. This work was carried out at the European Southern Observatory (ESO) site of Paranal, Vitacura (Santiago, Chile), and Garching (Germany).Attached Files
Published - 396357.pdf
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Additional details
- Eprint ID
- 57678
- Resolver ID
- CaltechAUTHORS:20150520-064945282
- European Southern Observatory (ESO)
- Created
-
2015-05-20Created from EPrint's datestamp field
- Updated
-
2021-11-10Created from EPrint's last_modified field
- Series Name
- Proceedings of SPIE
- Series Volume or Issue Number
- 9148