.. _VisGhostCatalogue:

===========================
Vis Ghost Catalogue Product
===========================

Metadata
______________________

+------------------------------------------------+----------------------------------------------------------------------------------------------+
| Data product name                              | DpdVisGhostCatalogue                                                                         |
+------------------------------------------------+----------------------------------------------------------------------------------------------+
| Data product custodian                         | VIS                                                                                          |
+------------------------------------------------+----------------------------------------------------------------------------------------------+
| Name of the Schema file                        | .. raw:: html                                                                                |
|                                                |                                                                                              |
|                                                | `euc-vis-GhostCatalogue.xsd <https://gitlab.euclid-sgs.uk/ST-DM/ST_DataModel/-/blob/10.1.2/S |
|                                                | T_DM_Schema/auxdir/ST_DM_Schema/dpd/vis/euc-vis-GhostCatalogue.xsd>`_                        |
+------------------------------------------------+----------------------------------------------------------------------------------------------+
| Processing Element(s) creating/using the data  | Ghost Catalogue                                                                              |
| product                                        |                                                                                              |
+------------------------------------------------+----------------------------------------------------------------------------------------------+
| Processing function using the data product     | VIS                                                                                          |
+------------------------------------------------+----------------------------------------------------------------------------------------------+

Proposed for inclusion in EAS/SAS
==========================================
.. PFUsingStart

Yes

.. PFUsingEnd

Data product elements
=====================
+--------------+----------------------------------------------+
| Header       | object of type sys:genericHeader             |
+--------------+----------------------------------------------+
| Data         | object of type vis:visFileContainerData      |
+--------------+----------------------------------------------+
| QualityFlags | object of type dqc:sqfPlaceHolder            |
+--------------+----------------------------------------------+
| Parameters   | object of type ppr:genericKeyValueParameters |
+--------------+----------------------------------------------+
   
Detailed description of the data product
========================================
.. DetailedDescStart

Data product definition referencing a CSV file in astropy format generated by the VIS_flag_ghosts processing element. 

**Name of file:**

``EUC_VIS_SWL_GHOSTCAT-[ObsId]-[Dither]-[exposure]-0000000__[YYYYMMDDThhmmss.s]Z.txt``

where the date is the production date.

The CSV file contains one line per star generating a ghost, with the star position and star magnitude from the input reference catalogue, 
measured ghost offset from the star and measured ghost surface brightness.

A ghost flagging report in html format is attached at all catalogue as a quality control. 

.. DetailedDescEnd