CRISPRED: A data pipeline for the CRISP imaging spectropolarimeter [SSA]

http://arxiv.org/abs/1406.0202


The production of science-ready data from major solar telescopes requires expertise beyond that of the typical observer. This is a consequence of the increasing complexity of instruments and observing sequences, which require calibrations and corrections for instrumental and seeing effects that are not only difficult to measure, but are also coupled in ways that require careful analysis in the design of the correction procedures. Modern space-based telescopes have data-processing pipelines capable of routinely producing well-characterized data products. High-resolution imaging spectropolarimeters at ground-based telescopes need similar data pipelines. The purpose of this paper is to document a procedure that forms the basis of current state of the art processing of data from the CRISP imaging spectropolarimeter at the Swedish 1-m Solar Telescope (SST). By collecting, implementing, and testing a suite of computer programs, we have defined a data reduction pipeline for this instrument. This pipeline, CRISPRED, streamlines the process of making science-ready data. The pipeline is implemented and operated in IDL, with time-consuming steps delegated to C. This pipeline will be the basis also for the data pipeline of the forthcoming CHROMIS instrument.

Read this paper on arXiv…

J. Rodriguez, M. Lofdahl, P. Sutterlin, et. al.
Tue, 3 Jun 14
7/65

Comments: Submitted to Astronomy \& Astrophysics