Add fgcmBuildFromIsolatedStars.py config overrides.

config/fgcmBuildFromIsolatedStars.py

@@ -0,0 +1,27 @@
+import os.path
+
+# Demand at least 2 observations of a star to be considered for calibration
+config.minPerBand = 2
+# High density cut to keep high density regions from dominating statistics.
+# 2000 is chosen to be reasonable for typical HSC depths
+config.densityCutMaxPerPixel = 2000
+# The mapping from HSC short filter name to FGCM "band".  This mapping
+# ensures that stars observed in HSC-R + HSC-R2 can be matched, and
+# HSC-I + HSC-I2 can be matched.
+from lsst.obs.hsc.hscFilters import HSC_FILTER_DEFINITIONS
+config.physicalFilterMap = HSC_FILTER_DEFINITIONS.physical_to_band
+config.primaryBands = ('i', 'r', 'g', 'z', 'y', 'N387', 'N816', 'N921', 'N1010')
+config.doSubtractLocalBackground = True
+
+hscConfigDir = os.path.join(os.path.dirname(__file__))
+config.fgcmLoadReferenceCatalog.load(os.path.join(hscConfigDir, 'filterMap.py'))
+config.fgcmLoadReferenceCatalog.applyColorTerms = True
+config.fgcmLoadReferenceCatalog.colorterms.load(os.path.join(hscConfigDir, 'colorterms.py'))
+config.fgcmLoadReferenceCatalog.referenceSelector.doSignalToNoise = True
+# Choose reference catalog signal-to-noise based on the PS1 i-band.
+config.fgcmLoadReferenceCatalog.referenceSelector.signalToNoise.fluxField = 'i_flux'
+config.fgcmLoadReferenceCatalog.referenceSelector.signalToNoise.errField = 'i_fluxErr'
+# Minimum signal-to-noise cut for a reference star to be considered a match.
+config.fgcmLoadReferenceCatalog.referenceSelector.signalToNoise.minimum = 10.0
+
+config.connections.ref_cat = 'ps1_pv3_3pi_20170110'