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Proceedings Paper

VLT VISIR: controlling data quality and instrument performance
Author(s): Danuta Dobrzycka; Alain Smette; Michael Sterzik; Lars Lundin; Yves Jung; Ralf Siebenmorgen
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Paper Abstract

VISIR is the new ESO VLT instrument mounted at the Cassegrain focus of Melipal (UT3) telescope. At Paranal it is the very first instrument capable of high sensitivity imaging in the N band and Q band mid infrared atmospheric windows. In addition, it features a long-slit spectrometer with a range of spectral resolutions between 150 and 30000. VISIR had been included in the standard VLT data flow operation even before regular observing started in March/April 2005. Data products are pipeline-processed and quality checked by the Data Flow Operations Group in Garching. The calibration data are processed to create calibration products and to extract Quality Control parameters. These parameters provide health checks and monitor instrument's performance. They are stored in a database, compared to earlier data, trended over time and made available on the VISIR Quality Control web pages that are updated daily. We present the parameters that were designed to assess quality of the data and to monitor performance of the MIR instrument. We also discuss the general process of data flow and data inspection.

Paper Details

Date Published: 30 June 2006
PDF: 6 pages
Proc. SPIE 6270, Observatory Operations: Strategies, Processes, and Systems, 627026 (30 June 2006); doi: 10.1117/12.669963
Show Author Affiliations
Danuta Dobrzycka, European Southern Observatory (Germany)
Alain Smette, European Southern Observatory (Chile)
Michael Sterzik, European Southern Observatory (Chile)
Lars Lundin, European Southern Observatory (Germany)
Yves Jung, European Southern Observatory (Germany)
Ralf Siebenmorgen, European Southern Observatory (Germany)

Published in SPIE Proceedings Vol. 6270:
Observatory Operations: Strategies, Processes, and Systems
David R. Silva; Rodger E. Doxsey, Editor(s)

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