calculateDcr¶

lsst.ip.diffim.calculateDcr(visitInfo, wcs, filterInfo, dcrNumSubfilters, splitSubfilters=False)¶

Calculate the shift in pixels of an exposure due to DCR.

Parameters:

visitInfo : lsst.afw.image.VisitInfo: Metadata for the exposure.
wcs : lsst.afw.geom.SkyWcs: Coordinate system definition (wcs) for the exposure.
filterInfo : lsst.afw.image.Filter: The filter definition, set in the current instruments’ obs package.
dcrNumSubfilters : int: Number of sub-filters used to model chromatic effects within a band.
splitSubfilters : bool, optional: Calculate DCR for two evenly-spaced wavelengths in each subfilter, instead of at the midpoint. Default: False

Returns: