orca.wrapper.change_phase_centre
================================

.. py:module:: orca.wrapper.change_phase_centre

.. autoapi-nested-parse::

   Phase center manipulation wrapper.

   Provides Python interface to the chgcentre tool for re-phasing
   visibility data to a new phase center.



Attributes
----------

.. autoapisummary::

   orca.wrapper.change_phase_centre.CHGCENTRE_PATH


Functions
---------

.. autoapisummary::

   orca.wrapper.change_phase_centre.change_phase_center
   orca.wrapper.change_phase_centre.get_phase_center


Module Contents
---------------

.. py:data:: CHGCENTRE_PATH
   :value: '/opt/bin/chgcentre'


.. py:function:: change_phase_center(ms: str, center_dir: str) -> str

   Change the phase center of a measurement set.

   :param ms: Path to the measurement set (modified in-place).
   :param center_dir: New phase center as 'RA DEC' string in HMS/DMS format.

   :returns: Path to the modified measurement set.


.. py:function:: get_phase_center(ms: str) -> astropy.coordinates.SkyCoord

   Get the current phase center of a measurement set.

   :param ms: Path to the measurement set.

   :returns: Phase center as an astropy SkyCoord object.