Introduction

The NIR Processing Function is in charge of reducing all the NISP imaging data of the Euclid wide survey, analysing the NISP data of the Euclid deep survey, and pre-reducing the NISP spectral data in common with the SIR Processing Function.

It is also in change to manage some calibration observations to create a set of Calibration Data Products that have to be used on Euclid wide survey data processing.

The goal of this section is to describe NIR PF Data Products to allow other PFs to designe their interfaces with NIR. A description of the NIR PF can be found on the NIR Software Description Document (SDD, EUCL-OTS-DDD-8-004), which is in turn based on the NIR Requirements Specifications Document (RSD, EUCL-OAR-RS-8-001).

List of NIR Data Products

It is possible to identify three NIR Data Products types:

• The NIR Output Data Products as result of the pipeline execution on standard pointings

• The NIR Calibration Data Products produced by dedicated pipelines and used by other pipelines to calibrate data

• The NIR Internal Data Products used for internal/technical purpose

NIR Output Data Products

During the operational phase

Data Product	Ddp Name	Description
NIR Calibrated Frame	DpdNirCalibratedFrame	Single frame astrometically and photometrically calibrated
NIR Calibrated Frame Catalog	DpdNirCalibratedFrameCatalog	Catalog extracted from single pointing
NIR Stacked Frame	DpdNirStackedFrame	Stacked image
NIR Stacked Frame Catalog	DpdNirStackedFrameCatalog	Catalog extracted from stacked image

NIR Calibration Data Products

The NIR Data Model contains a list of NIR Calibration Data Products (mainly) used as input for other pipelines to calibrate/correct for specific features.

Those Dpds are produced from dedicated observations with pipelines ad-hoc.

A special Data Product is defined for pipelines configuration [to complete] NIR Configuration Set. It is manually produced and uploaded to te archive.

Here the full list of NIR Calibration Dpds

Data Product	Dpd Name
[to complete] NIR Bad Pixel Flavor Mask	DpdNirBadPixelFlavorMask
[to complete] NIR Bad Pixel Mask	DpdNirBadPixelMask
[to complete] NIR Master Dark	DpdNirMasterDarkFrame
[to complete] NIR Small Scale Flat (MasterFlat)	DpdNirMasterFlatFrame
[to complete] NIR Large Scale Flat (LargeFlat)	DpdNirLargeFlatFrame
[to complete] NIR Geometric Distortions	DpdNirGeometricDistortions
[to complete] NIR Relative Photometric Calibration factors among Detectors	DpdNirRelPhotoDetCalibration
[to complete] NIR Relative Photometric Calibration factors among exposures	DpdNirRelPhotoExpCalibration
[to complete] NIR Relative Photometric Calibration factors between different fields	DpdNirRelPhotoFieldCalibration
[to complete] NIR Absolute Photometric Calibration Factors	DpdNirAbsPhotoCalibration
NIRNonLinearityMask	DpdNirNonlinearityMask
NIRPersistenceMask	DpdNirPersistenceMask
NIRPersistenceModel	DpdNirPersistenceModel
NIRGenericCalibration	DpdNirGenericCalibration
NIRDetectorBaseline	DpdNirDetectorBaseline

NIR Pipeline

Fig. 12 NIR PF Common pre-processing

Fig. 13 NIR PF dither calibration

Fig. 14 NIR PF stacking and catalogue extraction