This page provides a place for the AP team to keep track of past and future configuration investigations.
package | Output location | configuration parameter | tickets | discussion | investigation complete? |
---|---|---|---|---|---|
ip_diffim | doScaleTemplateVariance = True | ||||
/project/sullivan/saha/ | Use psfex as the PSF determiner (now the default) import lsst.meas.extensions.psfex.psfexPsfDeterminer config.charImage.measurePsf.psfDeterminer["psfex"].spatialOrder=2 | Ian Sullivan increasing reduced chisq for PSF candidates to allow crowded field processing (from 3 to 20–enough to have about 100 candidates) | Yes. Superseded by change to PSFEx. | ||
pipe_tasks | calibrate.photoCal.match.referenceSelection.magLimit.fluxField="i_flux" calibrate.photoCal.match.referenceSelection.magLimit.maximum=22.0 | Meredith Rawls uses this for obs_decam reruns since mid-2019 because sensible defaults are set only in obs_subaru. Also see this Community post. | Yes, but defaults still unset for obs_decam. Meredith to ticket. | ||
calibrate.astrometry.doMagnitudeOutlierRejection | Lauren MacArthur added this during DC2 processing, but value depends on whether refcats have a reasonable range, whether there are refcat vs. science color differences | Current consensus (July 12, 21) is that this is too dataset-dependent to set a single default. | |||
ip_diffim | self.makeKernel.kernel.active.spatialBgOrder = 2 | Shiu Liu (DESC DIA)'s analysis (10/4/2022) suggests ~50% reduction in artifacts going to a spatial order of 4 |