Stellar Locus

This is supplementary info on the DES stellar locus.

The main page is here.

Here is the DES DR1 database query used here. (Note that the DR1_MAIN_SAMPLE covers about 1 percent of the full DR1_MAIN table.) 
SELECT
  COADD_OBJECT_ID,RA,DEC,
  WAVG_MAG_PSF_G_DERED G_PSF,
  WAVG_MAG_PSF_R_DERED R_PSF,
  WAVG_MAG_PSF_I_DERED I_PSF,
  WAVG_MAG_PSF_Z_DERED Z_PSF,
  WAVG_MAG_PSF_Y_DERED Y_PSF,
  WAVG_MAGERR_PSF_G G_PSF_ERR,
  WAVG_MAGERR_PSF_R R_PSF_ERR,
  WAVG_MAGERR_PSF_I I_PSF_ERR,
  WAVG_MAGERR_PSF_Z Z_PSF_ERR,
  WAVG_MAGERR_PSF_Y Y_PSF_ERR
FROM DR1_MAIN_SAMPLE
WHERE
   WAVG_SPREAD_MODEL_I + 3.0*WAVG_SPREADERR_MODEL_I < 0.005 and
   WAVG_SPREAD_MODEL_I > -1 and
   IMAFLAGS_ISO_G = 0 and
   IMAFLAGS_ISO_R = 0 and
   IMAFLAGS_ISO_I = 0 and
   IMAFLAGS_ISO_Z = 0 and
   IMAFLAGS_ISO_Y = 0 and
   FLAGS_G < 4 and
   FLAGS_R < 4 and
   FLAGS_I < 4 and
   FLAGS_Z < 4 and
   FLAGS_Y < 4 and 
   abs(WAVG_MAG_PSF_G_DERED) < 30. and 
   abs(WAVG_MAG_PSF_R_DERED) < 30. and
   abs(WAVG_MAG_PSF_I_DERED) < 30. and
   abs(WAVG_MAG_PSF_Z_DERED) < 30. and
   abs(WAVG_MAG_PSF_Y_DERED) < 30.
And here is the table returned (same file, 3 different file formats):