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Title:
The Astro-WISE optical image pipeline. Development and implementation
Authors:
McFarland, John P.; Verdoes-Kleijn, Gijs; Sikkema, Gert; Helmich, Ewout M.; Boxhoorn, Danny R.; Valentijn, Edwin A.
Affiliation:
AA(Kapteyn Astronomical Institute), AB(Kapteyn Astronomical Institute), AC(Kapteyn Astronomical Institute), AD(Kapteyn Astronomical Institute), AE(Kapteyn Astronomical Institute), AF(Kapteyn Astronomical Institute)
Publication:
Experimental Astronomy, Volume 35, Issue 1-2, pp. 45-78 (ExA Homepage)
Publication Date:
01/2013
Origin:
SPRINGER
Keywords:
Wide-field imaging, Data processing, Information system
Abstract Copyright:
(c) 2013: The Author(s)
DOI:
10.1007/s10686-011-9266-x
Bibliographic Code:
2013ExA....35...45M

Abstract

We have designed and implemented a novel way to process wide-field astronomical data within a distributed environment of hardware resources and humanpower. The system is characterized by integration of archiving, calibration, and post-calibration analysis of data from raw, through intermediate, to final data products. It is a true integration thanks to complete linking of data lineage from the final catalogs back to the raw data. This paper describes the pipeline processing of optical wide-field astronomical data from the WFI (http://www.eso.org/lasilla/instruments/wfi/) and OmegaCAM (http://www.astro-wise.org/~omegacam/) instruments using the Astro-WISE information system (the Astro-WISE Environment or simply AWE). This information system is an environment of hardware resources and humanpower distributed over Europe. AWE is characterized by integration of archiving, data calibration, post-calibration analysis, and archiving of raw, intermediate, and final data products. The true integration enables a complete data processing cycle from the raw data up to the publication of science-ready catalogs. The advantages of this system for very large datasets are in the areas of: survey operations management, quality control, calibration analyses, and massive processing.
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