calculateDcr¶
- lsst.ip.diffim.calculateDcr(visitInfo, wcs, effectiveWavelength, bandwidth, 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.
- effectiveWavelength
float
The effective wavelengths of the current filter, in nanometers.
- bandwidth
float
The bandwidth of the current filter, in nanometers.
- 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
- visitInfo
- Returns: