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How to make quick look plot for CENA
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Simplest quick look can be generated by ``cena_timeser`` script.

.. code-block:: sh

        % cena_timeser.py 2009-02-06T05:10:00 2009-02-06T05:20:00

Options can be shown if you run the script without arguments.

You can use -f command for limiting the "valid" data.
See also the section :ref:`CENA_data_validation`.