The Astro-WISE optical image pipeline

Details The Astro-WISE optical image pipeline The Astro-WISE optical image pipeline

Nov 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011exa...tmp..129m&link_type=abstract

Experimental Astronomy, Online First

Astronomy and Astrophysics

Astronomy

Wide-Field Imaging, Data Processing, Information System

Scientific paper

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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