Data reduction pipeline for the METIS integral field spectrograph

Martin Baláž; Oliver Czoske; Kieran Leschinski; Hugo Buddelmeijer; Gilles P. P. L. Otten; Jennifer Karr; Chi-Hung Yan; Wolfgang Kausch

doi:10.1117/12.3017108

25 July 2024 Data reduction pipeline for the METIS integral field spectrograph

Martin Baláž, Oliver Czoske, Kieran Leschinski, Hugo Buddelmeijer, Gilles P. P. L. Otten, Jennifer Karr, Chi-Hung Yan, Wolfgang Kausch

Author Affiliations +

Proceedings Volume 13101, Software and Cyberinfrastructure for Astronomy VIII; 1310125 (2024) https://doi.org/10.1117/12.3017108
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Conference Poster

Abstract

We present the integral field unit part of the data reduction pipeline for METIS (Mid-infrared ELT Imager and Spectrograph), a first-generation infrared instrument that will be installed on the Extremely Large Telescope. The described software covers the entire process of correcting the instrumental effects and reconstructing the hyperspectral image. Apart from standard correction procedures common to virtually all digital imagers, the pipeline includes methods for distortion calibration, wavelength and flux calibration, correction of telluric absorption, reconstruction of the spectral cube with special emphasis on resampling the data only once, and finally algorithms for spatial and spectral dithering of multiple exposures taken at different field orientations and shifts, possibly taken many months apart. The pipeline has already passed the final design review and its implementation is underway.

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Martin Baláž, Oliver Czoske, Kieran Leschinski, Hugo Buddelmeijer, Gilles P. P. L. Otten, Jennifer Karr, Chi-Hung Yan, and Wolfgang Kausch "Data reduction pipeline for the METIS integral field spectrograph", Proc. SPIE 13101, Software and Cyberinfrastructure for Astronomy VIII, 1310125 (25 July 2024); https://doi.org/10.1117/12.3017108

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