.. _grid-tools-goettingen_to_specint:

goettingen_to_specint
~~~~~~~~~~~~~~~~~~~~~

.. program:: goettingen_to_specint

Synopsis
--------

.. code-block:: text

   goettingen_to_specint GOETTINGEN_FILE SPECINT_FILE [options]

Description
-----------

The :program:`goettingen_to_specint` tool extracts a flux spectrum
from a data file in FITS format (with the schema described by
:ads_citealp:`husser:2013`), and writes it to a
:f-schema:`specint` file.

Options
-------

.. option:: -h, --help

   Print a summary of options.

.. option:: -t, --file-type=TYPE

   Input file type. This determines the wavelength abscissa adopted
   for the input file. Valid choices, corresponding to the different
   grids described by :ads_citet:`husser:2013`, are ``HiRes``
   (high-resolution; default), ``MedRes-A1`` (medium-resolution,
   :math:`\Delta \lambda = 1\,\angstrom`) and ``MedRes-R10000``
   (medium resolution, :math:`\mathcal{R}=10\,000`).

.. note::

   In order for the :program:`goettingen_to_specint` tool to be built,
   you must first uncomment/edit the line in
   :file:`$MSG_DIR/build/Makefile` that sets the
   :envvar:`FITS_LDFLAGS` variable. This variable defines the flags
   used to link against your system's FITS library.