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XSHOOTER Pipeline:
Science Data

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SCIENCE DATA: GENERAL

On Paranal, the quick-look pipelines make an effort to automatically reduce all science data. The reduction is performed using standard calibration solutions from a local calibration database which is refreshed every few months. Generally any pipeline processing on the site is done on a best-effort basis. Its purpose is to offer a quick look to assess data quality etc.

Until the end of P87 (September 2011), science data were processed by QC Garching with the best possible (certified) calibrations solutions. The products were ingested into the Science Archive and delivered to the PIs. This service has been terminated with the begin of October 2011.

For some instruments, science-grade data products are created by QC Garching, using certified pipelines. Currently these are 1D spectral data products from UVES (Echelle mode), XSHOOTER (Echelle mode), and GIRAFFE (Medusa MOS modes). See the QC pages for those instruments for more information.

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. More ...

XSHOOTER INFORMATION

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.
RAW SCIENCE DATA

The following types of raw science data exist for the XSHOOTER supported modes.
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
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

 

REDUCED SCIENCE DATA AND 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

NAMING SCHEME

After production and certification, the calibration products are renamed after a scheme which includes type, OB ID, creation date and relevant XSHOOTER settings.

Science-grade data products

Since 2014, more than 30,000 science-grade flux-calibrated 1D data products are available for the entire data history of XSHOOTER Echelle,SLIT mode,for all three arms and all three observing modes (STARE, OFFSET, NODDING). New data are added on a monthly basis; data products older than one year are freely accessable, younger data products are available to PIs. More ...

Find the phase3 spectral archive interface here.


 
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