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VISIR:
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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.

TYPES OF RAW SCIENCE DATA

MODE DPR CATG DPR TYPE DPR TECH template description comments
IMAGING SCIENCE OBJECT IMAGE,CHOPNOD,JITTER
IMAGE,CHOPPING,JITTER
IMAGE,NODDING,JITTER
IMAGE,DIRECT,JITTER
VISIR_img_obs_AutoChopNod chopping and/or nodding observations supported by the pipeline
visir_img_chain
IMAGING SCIENCE OBJECT IMAGE,CHOPNOD,RASTER
IMAGE,CHOPPING,RASTER
IMAGE,NODDING,RASTER
VISIR_img_obs_GenericChopNod raster observations no pipeline support
IMAGING SCIENCE OBJECT IMAGE,PRE,CHOPNOD,JITTER
IMAGE,PRE,CHOPNOD,RASTER
VISIR_img_obs_AutoChopNod preimaging observations supported by the pipeline
visir_img_chain
IMAGING SCIENCE OBJECT IMAGE,BURST,CHOPNOD,JITTER VISIR_img_obs_BurstAutoChopNod burst observations no pipeline support (not offered in P95)
SPECTROSCOPY SCIENCE OBJECT SPECTRUM,CHOPNOD
SPECTRUM,NODDING
VISIR_spec_obs_LRAutoChopNod
VISIR_spec_obs_HRAutoChopNod
LR and HR slit spectral observations supported by the pipeline
visir_spc_chain
SPECTROSCOPY SCIENCE OBJECT ECHELLE VISIR_spec_obs_HRXAutoChopNod HR echelle spectral observations supported by the pipeline
visir_spc_chain

 

SCIENCE PRODUCTS (pre-upgrade)

As reference, the science products that have been created with the pre-upgrade pipeline and that have been distributed in Service Mode packages until September 2011 are described here.

MODE   pipeline recipe description
IMAGING [sci_img.gif 3K] visir_img_combine combined images, corrected for detector stripping, no image reconstruction
SPECTROSCOPY LR, HR-slit [sci_specLR.gif 14K]

visir_spec_phot

reduced LR (and HR slit) spectroscopy, corrected for detector stripping
SPECTROSCOPY HR-echelle [sci_specHR.gif 14K] visir_spec_obs_ech reduced HR-echelle spectroscopy, corrected for detector stripping

Naming scheme

After production and certification, the calibration products are renamed with a more user-friendly scheme which includes type, creation date and relevant setting parameters.

arrow Description of naming scheme


 
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