Source code for pyreduce.instruments.XSHOOTER

"""
Handles instrument specific info for the UVES spectrograph

Mostly reading data from the header
"""

import logging
import os.path

from ..common import Instrument

logger = logging.getLogger(__name__)




class XSHOOTER(Instrument):


    def add_header_info(self, header, channel, **kwargs):
        """read data from header and add it as REDUCE keyword back to the header"""
        # "Normal" stuff is handled by the general version, specific changes to values happen here
        # alternatively you can implement all of it here, whatever works
        header = super().add_header_info(header, channel)

        header["e_backg"] = (
            header["e_readn"] + header["e_exptime"] * header["e_drk"] / 3600
        )

        header["e_ra"] /= 15
        if header["e_jd"] is not None:
            header["e_jd"] += header["e_exptime"] / 2 / 3600 / 24 + 0.5

        return header




    def get_wavecal_filename(self, header, channel, **kwargs):
        """Get the filename of the wavelength calibration config file"""
        cwd = os.path.dirname(__file__)
        fname = f"wavecal_{channel.lower()}.npz"
        fname = os.path.join(cwd, fname)
        return fname