added dm.query_rc to doc

    In your local development environment, you have to use

    ``CsstMsDataManager.from_dir(...)`` to initialize it.

Attributes

^^^^^^^^^^

Some attributes can be accessed as below.

.. code-block:: python

    # access L0 directory

    dm_mbi.dir_l0

    dm.dir_l0

    # access L1 directory

    dm_mbi.dir_l1

    dm.dir_l1

    # access dir_pcref

    dm_mbi.dir_pcref

    dm.dir_pcref

    # access path_aux

    dm_mbi.path_aux

    dm.path_aux

    # access ver_sim

    dm_mbi.ver_sim

    dm.ver_sim

    # access target detectors

    dm_mbi.target_detectors

    dm.target_detectors

    # access available detectors

    dm_mbi.available_detectors

    dm.available_detectors

    # define an L1 file (detector-specified)

    dm_mbi.l1_detector(detector=6)

    dm.l1_detector(detector=6)

    # define an L1 file (non-detector-specified)

    dm_mbi.l1_file("flipped_image.fits")

    dm.l1_file("flipped_image.fits")

To get master files:

.. code-block:: python

    # to get bias

    dm_mbi.get_bias()

    dm.get_bias()

    # to get dark

    dm_mbi.get_dark()

    dm.get_dark()

    # to get flat

    dm_mbi.get_flat()

    dm.get_flat()

Query Reference Catalog

^^^^^^^^^^^^^^^^^^^^^^^

``CsstMsDataManager`` provides a method ``query_rc`` to query reference catalog from ``DFS``.

.. code-block:: python

    cat = dm.query_rc(ra=180, dec=0, radius=2, min_mag=0, max_mag=30)

    if cat is None:

        print("The query failed!")

    else:

        print("The query succeeded!")

Access code to data products