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NACO Pipeline:
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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 have been 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. The documentation of science pipelines and science processing is kept here for its heritage value.

NACO INFORMATION

The NACO pipeline is designed to reduce some types of the raw science data. Please, be aware that the adopted reduction strategy may not be suitable for some particular scientific purposes.

The following types of the NACO raw science data are NOT supported by the pipeline (situation for P86):

  • noAO, speckle_imaging
  • imaging SDI/SDI+
  • coronography
  • APP coronography
  • imaging SDI+4
  • prism spectroscopy
  • polarimetry
  • sparse aperture interferometric masks: SAM
  • SAMPol
  • cube mode (except for a simple cube imaging that is pipeline supported)

    RAW SCIENCE DATA

    The following types of NACO raw science data are supported by the pipeline:

    Frame Type DPR Type DPR Tech
    SCIENCE_IMG OBJECT IMAGE,JITTER
    SCIENCE_IMG SKY IMAGE,JITTER
    SCIENCE_IMG_CUBE OBJECT IMAGE,JITTER,CUBE
    SCIENCE_SPEC OBJECT SPECTRUM,JITTER
    SCIENCE_SPEC SKY SPECTRUM,JITTER

    REDUCED SCIENCE DATA AND PRODUCTS

    The following types of reduced data products are created for the NACO pipeline supported modes. For detailed information click here.

    Frame Type Recipe Description Products
    SCIENCE_IMG naco_img_jitter reduces stack of images combined, background subtracted reduced image
    SCIENCE_IMG_CUBE naco_img_jitter reduces cubes of images combined, background subtracted (only if 3 or more cubes per template run)
    SCIENCE_SPEC
    naco_spc_combine reduces stack of spectroscopic observations combined, background subtracted spectra

    In science data reduction calibration products are required. The selection of appropriate NACO calibration products is done based on following association rules.

    REDUCTION CASCADE

    All science products created by QC Garching follow the reduction cascade.

    NAMING SCHEME

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

     


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