Quality control of VLT-UVES data

Reinhard W. Hanuschik; Andreas Kaufer; Andrea Modigliani; Sandro D'Odorico; Hans Dekker

doi:10.1117/12.460617

2 January 2002 Quality control of VLT-UVES data

Reinhard W. Hanuschik, Andreas Kaufer, Andrea Modigliani, Sandro D'Odorico, Hans Dekker

Proceedings Volume 4844, Observatory Operations to Optimize Scientific Return III; (2002) https://doi.org/10.1117/12.460617
Event: Astronomical Telescopes and Instrumentation, 2002, Waikoloa, Hawai'i, United States

Abstract

UVES is the UV-Visual high-resolution echelle spectrograph mounted at the 8.2m Kueyen (UT2) telescope of the ESO Very Large Telescope. Its data products are pipeline-processed and quality checked by the Data Flow Operations Group (often known as QC Garching). Calibration data are processed to create calibration products and to extract Quality Control (QC) parameters. These parameters provide instrument health checks and monitor instrument performance. Typical UVES QC parameters are: bias level, read-out-noise, dark current of the three CCD detectors used in the instrument, rms of dispersion, resolving power, CCD pixel-to-pixel gain structure, instrument efficiency. The measured data are fed into a database, compared to earlier data, trended over time and published on the web (http://www.eso.org/qc/index_uves.html). The QC system has evolved with time and proven to be extremely useful. Some examples are given which highlight the impact of careful QC on instrument performance.

Citation Download Citation

Reinhard W. Hanuschik, Andreas Kaufer, Andrea Modigliani, Sandro D'Odorico, and Hans Dekker "Quality control of VLT-UVES data", Proc. SPIE 4844, Observatory Operations to Optimize Scientific Return III, (2 January 2002); https://doi.org/10.1117/12.460617

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