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Magnitude errors as a function of magnitude and magnitude type (rgm)

This is some simple analysis of the magnitude errors versus magnitude for a the various types of magnitudes.

Huan Lins SN X2 dataset

Features of the data

  1. bifurcation of psf magnitudes versus psferr
  2. detmodel_mag range values are too small by a factor of 1000 compared with other magtypes

See the PhotoZ working group for more info: https://cdcvs.fnal.gov/redmine/projects/des-photoz/wiki/Science_Verification_Photo-z_Tests#Magnitude-errors