.. _NIRStackedFrame:

NIR Stacked Frame
---------------------
  
Data product name
=================
.. DataProductNameStart

StackedFrame
   
.. DataProductNameEnd

Data product custodian
======================
.. DataProductCustodianStart

NIR
   
.. DataProductCustodianEnd
   
Data model tag
==============
.. DataModelTagStart

R-1.6.7
   
.. DataModelTagEnd
   
Name of the Schema file
=======================
.. NameSchemaStart

euc-test-nir-StackedFrame.xsd
   
.. NameSchemaEnd
   
Schema documentation tag
========================
.. SchemaDocTagStart

:emphasis:`Documentation for data product element DpdNirStackedFrame:`

NIR stacked frame obtained by coadding the four dithered observations of a given field.
   
.. SchemaDocTagEnd
   
Data product elements
=====================
.. DataProductElementsStart

Header of type: sys:genericHeader

Data of type: nir:nirStackedFrame

Parameters of type: ppr:genericKeyValueParameters

   
.. DataProductElementsEnd
   
Processing Element(s) creating/using the data product
=====================================================
.. PECreatorStart

It is created by the NIR_PointSpreadFunction PE.

It is used by the NIR_CatalogExtraction PE.

.. PECreatorEnd
   
Processing function using the data product
==========================================
.. PFUsingStart

Used by MER PF.

.. PFUsingEnd
   
Detailed description of the data product
========================================
.. DetailedDescStart

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 :numref:`stackedframe` is managed by the Euclid Image library `EL_ImageLib <https://gitlab.euclid-sgs.uk/EuclidLibs/EL_ImageLib>`_

.. _stackedframe:
.. figure:: ../figures/stacked_frame.png

   : 3-layer structure of NIR stacked frames

.. DetailedDescEnd