.. index:: Passband variations (VIS); Calibration observations
   
.. _calobs-vis-passband-variations:

**CALPRODUCT-VS-002:** VIS Passband Variations **(DEACTIVATED)**
================================================================

The VIS passband variations are quantified on ground using optical raytracing and dichroic reflectance measurements.

.. include:: definitions.rst

Parent requirement
------------------
| `R-CAL-B-VS-5230 <https://wiki.cosmos.esa.int/euclid/images/1/1d/EUC-MPIA-RD-1-001_CalCD-B_v3.1.pdf#page=157>`_

Scheduling
----------
Once.

Time-critical
-------------
No

Objective
---------

Determine the dichroic passband variations in-flight from stellar observations with known SEDs.

Processing input
----------------
:command:`Ground Processing Input Data`:

:command:`Data Description`: 

Quality control parameters
--------------------------
DataModel:
`<https://gitlab.euclid-sgs.uk/>`_

Contact person
--------------
VIS instrument scientist  

.. raw:: latex

   \clearpage