# AUTHOR: S. Zibetti
# SOURCE: QC
# DATE: 2016-02-23
# VERSION: 1.0
# COLAPRV: S. Zibetti
# PUBAPRV: None
# COLUMN1 : CALIFAID  ,  int ,  ,  CALIFA ID
# COLUMN2 : NAME  ,  string ,  ,  The name of the galaxy
# COLUMN3 : FLAG_OBS_SKYMAG, short, , Flag for critical sky surface brightness
# COLUMN4 : FLAG_OBS_EXT, short, , Flag for critical atmospheric extinction
# COLUMN5 : FLAG_OBS_AM, short, , Flag for critical airmass
# COLUMN6 : FLAG_RED_STRAYLIGHT, short, , Flag for critical straylight
# COLUMN7 : FLAG_RED_DISP, short, , Flag for critical spectral resolution
# COLUMN8 : FLAG_RED_CDISP, short, , Flag for critical cross-dispersion
# COLUMN9 : FLAG_RED_SKYLINES, short, , Flag for critical sky subtraction of 4358
# COLUMN10: FLAG_RED_LIMSB, short, , Flag for critical limiting surface brightness sensitivity
# COLUMN11: FLAG_RED_ERRSPEC, short, , Flag for abnormal error datacube
# COLUMN12: FLAG_CAL_WL, short, , Flag for critical wavelength calibration stability
# COLUMN13: FLAG_CAL_IMGQUAL, short, , Flag for critical reconstructed image quality
# COLUMN14: FLAG_CAL_SPECQUAL, short, , Flag for critical integrated spectrum quality
# COLUMN15: FLAG_CAL_FLATSDSS, short, , Flag for flat-fielding relative to SDSS; -1 if not applied
# COLUMN16: FLAG_CAL_REGISTRATION, short, , Flag for 2D registration relative to SDSS; -1 if not applied
# COLUMN17: FLAG_RELEASE, short, , 1: include in DR3; 0: do not include in DR3
# COLUMN18: NOTES, string, , notes


Flag definitions:
-1 = undefined
 0 = OK
 1 = WARNING
 2 = BAD

  - Observing conditions:
     * FLAG_OBS_SKYMAG: Sky brightness 
       * Warning: OBS_SKYMAG_MEAN <21.5 OR OBS_SKYMAG_RMS>0.1
       * Bad: never
     * FLAG_OBS_EXT: Atmospheric Extinction 
       * Warning: OBS_EXT_MEAN >0.3 OR OBS_EXT_MAX>0.35 OR OBS_EXT_RMS>0.1
       * Bad: never
     * FLAG_OBS_AM: Airmass 
       * Warning: OBS_AM_MEAN>1.5 OR OBS_AM_MAX>2.0 OR OBS_AM_RMS>0.15
       * Bad: never
  - Instrument/reduction:
     * FLAG_RED_STRAYLIGHT: Straylight
       * Warning: RED_MEANSTRAYLIGHT_MAX >15 OR RED_MAXSTRAYLIGHT_MAX >20 OR RED_RMSSTRAYLIGHT_MAX>1.5
       * Bad: RED_MEANSTRAYLIGHT_MAX >30 OR RED_MAXSTRAYLIGHT_MAX >50 OR RED_RMSSTRAYLIGHT_MAX >3
     * FLAG_RED_DISP: Spectral Dispersion FWHM
       * Warning: RED_DISP_MEAN >2.3 OR RED_DISP_MAX >3.0 OR RED_DISP_RMS>0.2
       * Bad: RED_DISP_MEAN >2.5
     * FLAG_RED_CDISP: Cross-dispersion FWHM
       * Warning: RED_CDISP_MEAN >3 OR RED_CDISP_RMS>0.66
       * Bad: never
     * FLAG_RED_SKYLINES: Skyline residuals after sky subtraction 
       * Warning: RED_RES4538_MIN< -0.1 OR RED_RES4538_MAX>0.1 OR RED_RES4538_RMS>0.7
       * Bad: never
     * FLAG_RED_LIMSB: Limiting surface brightness 
       * Warning: RED_LIMSB <22.50 AB_mag arcsec^-2
       * Bad: RED_LIMSB <22.00 AB_mag arcsec^-2
     * FLAG_RED_ERRSPEC: Error datacube
       * Warning: RED_FRAC_BIGERR > 0.4
       * Bad: RED_FRAC_BIGERR > 0.6
  - Wavelength calibration: 
    * FLAG_CAL_WL
      * Warning: CAL_RMSVELMEAN > 1.
      * Bad: CAL_RMSVELMEAN > 2.
  - Image reconstruction and registration:
     * FLAG_CAL_IMGQUAL: visual checks on the reconstructed V-band image
     * FLAG_CAL_REGISTRATION: visual checks on the registration diagnostic plots (chi^2 surfaces); -1 if registration based on nominal telescope offsets rather than on comparison with SDSS imaging
  - Integrated spectrum in 30"-aperture
    * FLAG_CAL_SPECQUAL: visual checks on the integrated spectrum for anomalous shapes and bumps, drops, anomalously low SNR etc.
  - "flat fielding" relative to the SDSS:
    * FLAG_CAL_FLATSDSS: visual checks on the response function used to match the cube to the SDSS photometry, combined flag on 2D reconstruted image and 30"-integrated spectrum; -1 if "flat fielding" not applied