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Quality Control and
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XSHOOTER QC
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Science data
Science data reduction | Raw SCIENCE data types | SCIENCE products

Science data reduction

The QC group processes a stream of science-grade data products for selected VLT instruments. They are created using certified pipelines and certified master calibrations. Currently these are 1D spectral data products for UVES-ECHELLE, XSHOOTER-SLIT, and GIRAFFE-MEDUSA (MOS modes), as well as IFU datacubes for MUSE and MUSE-DEEP, and HAWKI-IMG data. Find an overview of the current streams here. (The certification process does not apply for HARPS, FEROS and PIONIER data streams which are currently served through a different, completely automatic process.)

XSHOOTER science products

For XSHOOTER ECHELLE,Slit mode (not: IFU), more than 30,000 science-grade flux-calibrated 1D data products are available covering the entire data history. They are available on the phase3 archive interface.


Raw SCIENCE data types
Science data reduction | Raw SCIENCE data types | SCIENCE products

The XSHOOTER pipeline is designed to reduce raw science data. On Paranal, the quick-look pipeline makes an attempt to automatically reduce all science data. The reduction is performed using standard calibration solutions from a local calibration database.

At QC Garching, all science data taken in Service Mode are pipeline-reduced, using the best available calibration solutions, quality-checked and closest in time, following the reduction cascade. The products of science reduction are also quality-checked. If any irregularity in the reduced data is found, an attempt is made to improve on this. If not possible, information about the poor quality is made available in the SM package. Please note that ESO is not assuming any responsibility in respect to the usefulness of the reduced data. The adopted reduction strategy may not be suitable for the scientific purpose of the observations.

Frame Type DPR.TYPE DPR.TECH
OBJECT_SLIT_STARE_<arm> OBJECT ECHELLE,SLIT,STARE
OBJECT_SLIT_OFFSET_<arm> OBJECT ECHELLE,SLIT,OFFSET
SKY_SLIT_OFFSET_<arm> SKY ECHELLE,SLIT,OFFSET
OBJECT_SLIT_NOD_<arm> OBJECT ECHELLE,SLIT,NODDING
OBJECT_IFU_STARE_<arm> OBJECT ECHELLE,IFU,STARE
OBJECT_IFU_OFFSET_<arm> OBJECT ECHELLE,IFU,OFFSET
SKY_IFU_OFFSET_<arm> SKY ECHELLE,IFU,OFFSET


SCIENCE products
Science data reduction | Raw SCIENCE data types | SCIENCE products

The following types of reduced data and products are produced for the XSHOOTER supported modes

DPR TECH Recipe Description Products
ECHELLE,SLIT,STARE xsh_scired_slit_stare reduce single slit spectra taken in STARE mode reduced spectra (order 1D/2D, merged 1D/2D, sky)
ECHELLE,SLIT,OFFSET xsh_scired_slit_offset reduce pairs of OFFSET spectra (object/sky) reduced spectra (order 1D/2D, merged 1D/2D, sky)
ECHELLE,SLIT,NODDING xsh_scired_slit_nod reduce pairs of NODded spectra (AB, ABBA, etc.) reduced spectra (order 1D/2D, merged 1D/2D)
ECHELLE,IFU,STARE xsh_scired_ifu_stare reduce single IFU spectra taken in STARE mode reduced spectra in 3D cube format (merged/order)
ECHELLE,IFU,OFFSET xsh_scired_ifu_offset reduce pairs of OFFSET spectra (object/sky) reduced spectra in 3D cube format (merged/order), sky in cube format


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