def which_obs_mjd(filename):
""" Read to filename and return the observation time of the given data file.
Parameters
----------
filename: [string]
location of the data file to open (a fits file)
Return
------
float (MJD)
"""
# - SDSS
if sdss.is_sdss_file(filename):
return sdss.which_obs_mjd(filename)
# - SDSS
if snifs.is_snifs_file(filename):
return snifs.which_obs_mjd(filename)
# - HST
if hst.is_hst_file(filename):
return hst.which_obs_mjd(filename)
# - STELLA
if stella.is_stella_file(filename):
return stella.which_obs_mjd(filename)
# - PTF
if ptf.is_ptf_file(filename):
return ptf.which_obs_mjd(filename)
# - Nothing else...
raise ValueError("'filename' does not belong to a known instrument "+"\n"+\
"these are:"+", ".join(KNOWN_INSTRUMENTS))
def get_instrument_wcs(filename):
"""
This function enables to load the wcs solution only, not opening the
full image. This might be useful to avoid opening large images
"""
from .. import astrometry
# - SDSS
if sdss.is_sdss_file(filename):
index = sdss.DATAINDEX
# - SNIFS
elif snifs.is_snifs_file(filename):
index = snifs.DATAINDEX
# - HST
elif hst.is_hst_file(filename):
index = hst.DATAINDEX
# - STELLA
elif stella.is_stella_file(filename):
index = stella.DATAINDEX
# - PTF
elif ptf.is_ptf_file(filename):
index = ptf.DATAINDEX
else:
# - Nothing else...
raise ValueError("'filename' does not belong to a known instrument "+"\n"+\
"these are:"+", ".join(KNOWN_INSTRUMENTS))
# -- good to go
return astrometry.wcs(filename,extension=index)
def get_instrument_wcs(filename):
"""
This function enables to load the wcs solution only, not opening the
full image. This might be useful to avoid opening large images
"""
from .. import astrometry
# - SDSS
if sdss.is_sdss_file(filename):
index = sdss.DATAINDEX
# - SNIFS
elif snifs.is_snifs_file(filename):
index = snifs.DATAINDEX
# - HST
elif hst.is_hst_file(filename):
index = hst.DATAINDEX
# - STELLA
elif stella.is_stella_file(filename):
index = stella.DATAINDEX
# - PTF
elif ptf.is_ptf_file(filename):
index = ptf.DATAINDEX
else:
# - Nothing else...
raise ValueError("'filename' does not belong to a known instrument "+"\n"+\
"these are:"+", ".join(KNOWN_INSTRUMENTS))
# -- good to go
return astrometry.wcs(filename,extension=index)
def which_obs_mjd(filename):
""" Read to filename and return the observation time of the given data file.
Parameters
----------
filename: [string]
location of the data file to open (a fits file)
Return
------
float (MJD)
"""
# - SDSS
if sdss.is_sdss_file(filename):
return sdss.which_obs_mjd(filename)
# - SDSS
if snifs.is_snifs_file(filename):
return snifs.which_obs_mjd(filename)
# - HST
if hst.is_hst_file(filename):
return hst.which_obs_mjd(filename)
# - STELLA
if stella.is_stella_file(filename):
return stella.which_obs_mjd(filename)
# - PTF
if ptf.is_ptf_file(filename):
return ptf.which_obs_mjd(filename)
# - Nothing else...
raise ValueError("'filename' does not belong to a known instrument "+"\n"+\
"these are:"+", ".join(KNOWN_INSTRUMENTS))
def get_instrument(filename,astrotarget=None,**kwargs):
""" Reads the given file and open its corresponding Instrument object.
Known instruments are (might not be exhaustive): SDSS / HST / PTF
Parameters
----------
filename: [string]
location of the data file to open (a fits file)
astrotarget: [AstroTarget] -optional-
Target associated to the image. The target should be within the
image's boundaries.
Return
------
Instrument (the corresponding Child's object)
"""
# - SDSS
if sdss.is_sdss_file(filename):
return sdss.sdss(filename,astrotarget=astrotarget,
**kwargs)
# - SNIFS
if snifs.is_snifs_file(filename):
return snifs.snifs(filename,astrotarget=astrotarget,
**kwargs)
# - HST
if hst.is_hst_file(filename):
return hst.hst(filename,astrotarget=astrotarget,
**kwargs)
# - STELLA
if stella.is_stella_file(filename):
return stella.stella(filename,astrotarget=astrotarget,
**kwargs)
# - PTF
if ptf.is_ptf_file(filename):
return ptf.ptf(filename,astrotarget=astrotarget,
**kwargs)
# - Nothing else...
raise ValueError("'filename' does not belong to a known instrument "+"\n"+\
"these are:"+", ".join(KNOWN_INSTRUMENTS))
def get_instrument(filename,astrotarget=None,**kwargs):
""" Reads the given file and open its corresponding Instrument object.
Known instruments are (might not be exhaustive): SDSS / HST / PTF
Parameters
----------
filename: [string]
location of the data file to open (a fits file)
astrotarget: [AstroTarget] -optional-
Target associated to the image. The target should be within the
image's boundaries.
Return
------
Instrument (the corresponding Child's object)
"""
# - SDSS
if sdss.is_sdss_file(filename):
return sdss.sdss(filename,astrotarget=astrotarget,
**kwargs)
# - SNIFS
if snifs.is_snifs_file(filename):
return snifs.snifs(filename,astrotarget=astrotarget,
**kwargs)
# - HST
if hst.is_hst_file(filename):
return hst.hst(filename,astrotarget=astrotarget,
**kwargs)
# - STELLA
if stella.is_stella_file(filename):
return stella.stella(filename,astrotarget=astrotarget,
**kwargs)
# - PTF
if ptf.is_ptf_file(filename):
return ptf.ptf(filename,astrotarget=astrotarget,
**kwargs)
# - Nothing else...
raise ValueError("'filename' does not belong to a known instrument "+"\n"+\
"these are:"+", ".join(KNOWN_INSTRUMENTS))
def which_band_is_file(filename):
""" Read to filename and return the name of the photometric
band associated to the given data file.
Known instruments are (might not be exhaustive): SDSS / HST / PTF
Parameters
----------
filename: [string]
location of the data file to open (a fits file)
Return
------
String (name of the photometric band)
"""
# - SDSS
if sdss.is_sdss_file(filename):
return sdss.which_band_is_file(filename)
# - SDSS
if snifs.is_snifs_file(filename):
return snifs.which_band_is_file(filename)
# - HST
if hst.is_hst_file(filename):
return hst.which_band_is_file(filename)
# - STELLA
if stella.is_stella_file(filename):
return stella.which_band_is_file(filename)
# - PTF
if ptf.is_ptf_file(filename):
return ptf.which_band_is_file(filename)
# - Nothing else...
raise ValueError("'filename' does not belong to a known instrument "+"\n"+\
"these are:"+", ".join(KNOWN_INSTRUMENTS))
def which_band_is_file(filename):
""" Read to filename and return the name of the photometric
band associated to the given data file.
Known instruments are (might not be exhaustive): SDSS / HST / PTF
Parameters
----------
filename: [string]
location of the data file to open (a fits file)
Return
------
String (name of the photometric band)
"""
# - SDSS
if sdss.is_sdss_file(filename):
return sdss.which_band_is_file(filename)
# - SDSS
if snifs.is_snifs_file(filename):
return snifs.which_band_is_file(filename)
# - HST
if hst.is_hst_file(filename):
return hst.which_band_is_file(filename)
# - STELLA
if stella.is_stella_file(filename):
return stella.which_band_is_file(filename)
# - PTF
if ptf.is_ptf_file(filename):
return ptf.which_band_is_file(filename)
# - Nothing else...
raise ValueError("'filename' does not belong to a known instrument "+"\n"+\
"these are:"+", ".join(KNOWN_INSTRUMENTS))