"""Reader function for K2SFF community light curve products."""
from ..lightcurve import KeplerLightCurve
from ..utils import validate_method
from .generic import read_generic_lightcurve
[docs]def read_k2sff_lightcurve(filename, ext="BESTAPER", **kwargs):
"""Read a K2SFF light curve file.
More information: https://archive.stsci.edu/hlsp/k2sff
Parameters
----------
filename : str
Path or URL of a K2SFF light curve FITS file.
ext : str
Version of the light curve to use. Valid options include "BESTAPER",
"CIRC_APER0" through "CIRC_APER9", and "PRF_APER0" through "PRF_APER9".
Returns
-------
lc : `KeplerLightCurve`
A populated light curve object.
"""
lc = read_generic_lightcurve(
filename, flux_column="fcor", time_format="bkjd", ext=ext
)
lc.meta["AUTHOR"] = "K2SFF"
lc.meta["TARGETID"] = lc.meta.get("KEPLERID")
return KeplerLightCurve(data=lc, **kwargs)