| Version 9 (modified by , 11 years ago) ( diff ) |
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Notes on Flux Columns in the SAS 39 batches and PSPS tables
ObjectThin
No fluxes or magnitudes
Detection
Fluxes are in adu / sec Also: KronRadius and apRadius both appear to be in pixels. The schema browser page says that KronRadius is in pixels but apRadius is in arcsec
Similarly the fwhm values look to be in pixels schema says arcsec.
StackObjectThin
Has magnitudes not fluxes.
StackObjectAttributes
The following are in adu/sec
xPSFFlux xKronFlux xApFlux
StackPetrosian
schema browser says units for xpetMag is Jy but the Description calls the column "PetrosianFlux" The values show that it has been converted to a Pogson magnitude.
StackApFlx (and the !GalCon6 and !GalCon8 versions)
Flux columns have been converted to Jy
StackModelFit tables
Has magnitudes not fluxes. Are the radii in pixels or arcsec? Sersic radius appears to be arcsec. Check. Also the Sersic index values look funny. The range of values is 0 to 1. Should be 0 to 4 or so.
ForcedWarpMeasurement
Fluxes are in Jy
ForcedMeanObject
Fluxes are in Jy Schema browser units are AB magnitude Description says things like "robust mean g psf AB magnitude ..."
the various FluxStd columns (stdev?) look like they are in ADU based on the range of values.
DiffDetection
Fluxes are in adu
