tweak naming conventions

.. code-block:: python

    import re

    pattern = re.compile(

        r"CSST_"

        r"(?P<facility>[A-Z]+)_"

        r"(?P<project>[A-Z]+)_"

        r"(?P<data_type>[A-Z]+)_"

        r"(?P<t_start>[0-9]{14})_"

        r"(?P<t_stop>[0-9]{14})_"

        r"(?P<obs_id>[0-9]{9})_"

        r"(?P<detector>[0-9]{2})_"

        r"L(?P<level>[0-9]+)_"

        r"(?P<version>[A-Z0-9]+).fits"

    )

    mo = re.search(pattern, r"CSST_MSC_MS_SCI_20270626203558_20270626203828_100000066_01_L0_1.fits")

    print(mo.groupdict())

    >>> import re

    >>> pattern = re.compile(

    >>>     r"CSST_"

    >>>     r"(?P<facility>[A-Z]+)_"

    >>>     r"(?P<project>[A-Z]+)_"

    >>>     r"(?P<data_type>[A-Z]+)_"

    >>>     r"(?P<t_start>[0-9]{14})_"

    >>>     r"(?P<t_stop>[0-9]{14})_"

    >>>     r"(?P<obs_id>[0-9]{9})_"

    >>>     r"(?P<detector>[0-9]{2})_"

    >>>     r"L(?P<level>[0-9]+)_"

    >>>     r"(?P<version>[A-Z0-9]+).fits"

    >>> )

    >>> mo = re.search(pattern, r"CSST_MSC_MS_SCI_20270626203558_20270626203828_100000066_01_L0_1.fits")

    >>> print(mo.groupdict())

    {'facility': 'MSC', 'project': 'MS', 'data_type': 'SCI', 't_start': '20260612100759', 't_stop': '20260612101029', 'obs_id': '100000036', 'detector': '16', 'level': '0', 'version': '1'}