KMOS is a multi-object near-infrared integral field spectrometer with 24 deployable cryogenic pick-off arms. Inevitably, data processing is a complex task that requires careful calibration and quality control. In this paper we describe all the steps involved in producing science-quality data products from the raw observations. In particular, we focus on the following issues: (i) the calibration scheme which produces maps of the spatial and spectral locations of all illuminated pixels on the detectors; (ii) our concept of minimising the number of interpolations, to the limiting case of a single reconstruction that simultaneously uses raw data from multiple exposures; (iii) a comparison of the various interpolation methods implemented, and an assessment of the performance of true 3D interpolation schemes; (iv) the way in which instrumental flexure is measured and compensated. We finish by presenting some examples of data processed using the pipeline.
@article{arxiv.1308.6679,
title = {The Software Package for Astronomical Reductions with KMOS: SPARK},
author = {Richard Davies and Alex Agudo Berbel and Erich Wiezorrek and Michele Cirasuolo and Natascha M. Foerster Schreiber and Yves Jung and Bernard Muschielok and Thomas Ott and Suzanne Ramsay and Joerg Schlichter and Ray Sharples and Michael Wegner},
journal= {arXiv preprint arXiv:1308.6679},
year = {2015}
}