.. DO NOT EDIT.
.. THIS FILE WAS AUTOMATICALLY GENERATED BY SPHINX-GALLERY.
.. TO MAKE CHANGES, EDIT THE SOURCE PYTHON FILE:
.. "auto_examples/plot_sun_in_local.py"
.. LINE NUMBERS ARE GIVEN BELOW.

.. only:: html

    .. note::
        :class: sphx-glr-download-link-note

        Click :ref:`here <sphx_glr_download_auto_examples_plot_sun_in_local.py>`
        to download the full example code

.. rst-class:: sphx-glr-example-title

.. _sphx_glr_auto_examples_plot_sun_in_local.py:


========================
Sun in local coordinates
========================

Show off some coordinate transformations.

.. GENERATED FROM PYTHON SOURCE LINES 8-20

.. code-block:: default


    # Author: Moritz Lotze <mlotze@km3net.de>
    # License: BSD-3

    from astropy.units import deg
    import numpy as np
    import pandas as pd

    from km3astro.random import random_date, random_azimuth, random_zenith
    from km3astro.coord import local_frame, Sun, source_to_neutrino_direction









.. GENERATED FROM PYTHON SOURCE LINES 21-22

generate some random events

.. GENERATED FROM PYTHON SOURCE LINES 22-28

.. code-block:: default


    n_evts = 1e4
    zen = random_zenith(n=n_evts)
    time = random_date(n=n_evts)
    azi = random_azimuth(n=n_evts)








.. GENERATED FROM PYTHON SOURCE LINES 29-30

transform to horizontal coordinates

.. GENERATED FROM PYTHON SOURCE LINES 30-52

.. code-block:: default


    orca_frame = local_frame(time=time, location="orca")
    sun = Sun(time)

    sun_orca = sun.transform_to(orca_frame)

    sun_azi = sun_orca.az.rad
    sun_zen = (90 * deg - sun_orca.alt).rad

    sun_phi, sun_theta = source_to_neutrino_direction(sun_azi, sun_zen)

    sun_df = pd.DataFrame(
        {
            "Sun Azimuth": sun_azi,
            "Sun Zenith": sun_zen,
            "Sun Cos Zenith": np.cos(sun_zen),
            "Sun Phi": sun_phi,
            "Sun Theta": sun_theta,
            "Sun Cos Theta": np.cos(sun_theta),
        }
    )








.. GENERATED FROM PYTHON SOURCE LINES 53-57

.. code-block:: default


    sun_df.plot.hexbin("Sun Zenith", "Sun Azimuth", cmap="viridis")





.. image-sg:: /auto_examples/images/sphx_glr_plot_sun_in_local_001.png
   :alt: plot sun in local
   :srcset: /auto_examples/images/sphx_glr_plot_sun_in_local_001.png
   :class: sphx-glr-single-img


.. rst-class:: sphx-glr-script-out

 Out:

 .. code-block:: none


    <AxesSubplot:xlabel='Sun Zenith', ylabel='Sun Azimuth'>



.. GENERATED FROM PYTHON SOURCE LINES 58-61

.. code-block:: default


    sun_df.plot.hexbin("Sun Cos Zenith", "Sun Azimuth", cmap="magma")




.. image-sg:: /auto_examples/images/sphx_glr_plot_sun_in_local_002.png
   :alt: plot sun in local
   :srcset: /auto_examples/images/sphx_glr_plot_sun_in_local_002.png
   :class: sphx-glr-single-img


.. rst-class:: sphx-glr-script-out

 Out:

 .. code-block:: none


    <AxesSubplot:xlabel='Sun Cos Zenith', ylabel='Sun Azimuth'>



.. GENERATED FROM PYTHON SOURCE LINES 62-65

.. code-block:: default


    sun_df.plot.hexbin("Sun Theta", "Sun Phi", cmap="inferno")




.. image-sg:: /auto_examples/images/sphx_glr_plot_sun_in_local_003.png
   :alt: plot sun in local
   :srcset: /auto_examples/images/sphx_glr_plot_sun_in_local_003.png
   :class: sphx-glr-single-img


.. rst-class:: sphx-glr-script-out

 Out:

 .. code-block:: none


    <AxesSubplot:xlabel='Sun Theta', ylabel='Sun Phi'>



.. GENERATED FROM PYTHON SOURCE LINES 66-68

.. code-block:: default


    sun_df.plot.hexbin("Sun Cos Theta", "Sun Phi", cmap="plasma")



.. image-sg:: /auto_examples/images/sphx_glr_plot_sun_in_local_004.png
   :alt: plot sun in local
   :srcset: /auto_examples/images/sphx_glr_plot_sun_in_local_004.png
   :class: sphx-glr-single-img


.. rst-class:: sphx-glr-script-out

 Out:

 .. code-block:: none


    <AxesSubplot:xlabel='Sun Cos Theta', ylabel='Sun Phi'>




.. rst-class:: sphx-glr-timing

   **Total running time of the script:** ( 0 minutes  3.455 seconds)


.. _sphx_glr_download_auto_examples_plot_sun_in_local.py:


.. only :: html

 .. container:: sphx-glr-footer
    :class: sphx-glr-footer-example



  .. container:: sphx-glr-download sphx-glr-download-python

     :download:`Download Python source code: plot_sun_in_local.py <plot_sun_in_local.py>`



  .. container:: sphx-glr-download sphx-glr-download-jupyter

     :download:`Download Jupyter notebook: plot_sun_in_local.ipynb <plot_sun_in_local.ipynb>`


.. only:: html

 .. rst-class:: sphx-glr-signature

    `Gallery generated by Sphinx-Gallery <https://sphinx-gallery.github.io>`_