lsst.pipe.tasks.healSparseMappingProperties.DcrE2PropertyMap Class Reference

Inheritance diagram for lsst.pipe.tasks.healSparseMappingProperties.DcrE2PropertyMap:

Static Public Attributes
str	description = "Effect of DCR on PSF shape e2"

Protected Member Functions
	_compute (self, row, ra, dec, scalings, psf_array=None)

Detailed Description

Effect of DCR on psf shape e2 property map.

Definition at line 543 of file healSparseMappingProperties.py.

Member Function Documentation

_compute()

lsst.pipe.tasks.healSparseMappingProperties.DcrE2PropertyMap._compute ( self, row, ra, dec, scalings, psf_array = None )

protected

Compute map value from a row in the visitSummary catalog.

Parameters
----------
row : `lsst.afw.table.ExposureRecord`
    Row of a visitSummary ExposureCatalog.
ra : `np.ndarray`
    Array of right ascensions
dec : `np.ndarray`
    Array of declinations
scalings : `float` or `np.ndarray`
    Scaling values to coadd zeropoint.
psf_array : `np.ndarray`, optional
    Array of approximate psf values matched to ra/dec.

Reimplemented from lsst.pipe.tasks.healSparseMappingProperties.BasePropertyMap.

Definition at line 547 of file healSparseMappingProperties.py.

    def _compute(self, row, ra, dec, scalings, psf_array=None):
        par_angle = row.getVisitInfo().getBoresightParAngle().asRadians()
        return (np.tan(np.deg2rad(row["zenithDistance"]))**2.)*np.sin(2.*par_angle)
 
 
@register_property_map("epoch")

Member Data Documentation

description

str lsst.pipe.tasks.healSparseMappingProperties.DcrE2PropertyMap.description = "Effect of DCR on PSF shape e2"

static

Definition at line 545 of file healSparseMappingProperties.py.

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

• /j/snowflake/release/lsstsw/stack/lsst-scipipe-8.0.0/Linux64/pipe_tasks/g29320951ab+012e1474a1/python/lsst/pipe/tasks/healSparseMappingProperties.py