lsst.obs.decam.crosstalk.DecamCrosstalkConfig Class Reference

Inheritance diagram for lsst.obs.decam.crosstalk.DecamCrosstalkConfig:

Public Member Functions
def	getSourcesAndCoeffsFile (self, filename='DECam_xtalk_20130606.txt')
def	getSourcesAndCoeffs (self)

Detailed Description

Configuration for DECam crosstalk removal.

Definition at line 48 of file crosstalk.py.

Member Function Documentation

getSourcesAndCoeffs()

def lsst.obs.decam.crosstalk.DecamCrosstalkConfig.getSourcesAndCoeffs

(

self

)

Read crosstalk sources and coefficients from DECam-specific file.

Returns
-------
sources : `defaultdict`
    Sources of crosstalk read from crosstalk_file.
coeffs : `dict`
    Linear crosstalk coefficients corresponding to sources.

Definition at line 74 of file crosstalk.py.

    def getSourcesAndCoeffs(self):
        """Read crosstalk sources and coefficients from DECam-specific file.
 
        Returns
        -------
        sources : `defaultdict`
            Sources of crosstalk read from crosstalk_file.
        coeffs : `dict`
            Linear crosstalk coefficients corresponding to sources.
        """
        crosstalk_file = self.getSourcesAndCoeffsFile()
        sources = defaultdict(list)
        coeffs = {}
        log = logging.getLogger('lsst.obs.decam.DecamCrosstalkConfig')
        log.info('Reading crosstalk coefficient data')
        with open(crosstalk_file) as f:
            for line in f:
                li = line.strip()
                if not li.startswith('#'):
                    elem = li.split()
                    # The xtalk file has image areas like 'ccd01A'; preserve only '01A'
                    sources[elem[0][3:]].append(elem[1][3:])
                    # The linear crosstalk coefficients
                    coeffs[(elem[0][3:], elem[1][3:])] = float(elem[2])
        return sources, coeffs
 
 

getSourcesAndCoeffsFile()

def lsst.obs.decam.crosstalk.DecamCrosstalkConfig.getSourcesAndCoeffsFile	(		self,
			filename = 'DECam_xtalk_20130606.txt'
	)

File containing DECam crosstalk coefficients.

This text file is provided by NOAO in a particular format with
information about the DECam crosstalk coefficients. It is available at
http://www.ctio.noao.edu/noao/content/DECam-Calibration-Files

Parameters
----------
filename : `str`, optional
    File containing the decam crosstalk coefficients, from NOAO.

Returns
-------
result : `str`
    Full path to filename.

Definition at line 52 of file crosstalk.py.

    def getSourcesAndCoeffsFile(self, filename='DECam_xtalk_20130606.txt'):
        """File containing DECam crosstalk coefficients.
 
        This text file is provided by NOAO in a particular format with
        information about the DECam crosstalk coefficients. It is available at
        http://www.ctio.noao.edu/noao/content/DECam-Calibration-Files
 
        Parameters
        ----------
        filename : `str`, optional
            File containing the decam crosstalk coefficients, from NOAO.
 
        Returns
        -------
        result : `str`
            Full path to filename.
        """
        mapper = DecamMapper()
        packageName = mapper.getPackageName()
        packageDir = getPackageDir(packageName)
        return os.path.join(packageDir, 'decam', filename)
 

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The documentation for this class was generated from the following file:

• /j/snowflake/release/lsstsw/stack/lsst-scipipe-4.0.1/Linux64/obs_decam/gff490e6085+8c2580be5c/python/lsst/obs/decam/crosstalk.py