NIR Stacked Frame¶

Data product name¶

StackedFrame

Data product custodian¶

NIR

Data model tag¶

R-1.6.7

Name of the Schema file¶

euc-test-nir-StackedFrame.xsd

Schema documentation tag¶

Documentation for data product element DpdNirStackedFrame:

NIR stacked frame obtained by coadding the four dithered observations of a given field.

Data product elements¶

Header of type: sys:genericHeader

Data of type: nir:nirStackedFrame

Parameters of type: ppr:genericKeyValueParameters

Processing Element(s) creating/using the data product¶

It is created by the NIR_PointSpreadFunction PE.

It is used by the NIR_CatalogExtraction PE.

Processing function using the data product¶

Used by MER PF.

Detailed description of the data product¶

This is an output data product of the NIR PF dedicated to the coaddition of the four calibrated dithered observation pf a given field, to be used by the MER PF for catalogue extraction.

It consists of 2 FITS files respectively for the Science image and the PSF model:

Science Image: MEF with primary and 3 extensions, i.e. 3 layers representing calibrated science image, RMS, and Data Quality flags. The addition of a fourth layer containing the weights is under discussion. Units are microJy.
PSF: currently a single extension FITS file containing the PSF image associated to the science image. It will be extended to include wavelength and focal plane dependent PSF.

The MEF 3-layer format, shown in Fig. 17 is managed by the Euclid Image library EL_ImageLib

../../_images/stacked_frame.png — Fig. 17 : 3-layer structure of NIR stacked frames¶