INDX_SDSS 0th-indexed array location in *either* the S82Coadd West or East parent catalog
INDX_SPALL_V5_5_0 0th-indexed array location in the BOSS v5_5_0 spAll catalog
INDX_SPECOBJ_DR10 0th-indexed array location in the SDSS DR10 specObj catalog
Z_SPECOBJ_DR10 SDSS DR10 spectroscopic redshift (good quality cuts applied)
UKIDSS_SOURCEID UKIDSS sourceID
SDSS_FLAGS FLAGS value inherited from the SDSS Coadd
MASKFLAG S82-MGC defined bitmask flags (see maskflag_definitions_v4_0_0.txt)
YPPERRBITS UKIDSS error bitmask flag 
J_1PPERRBITS UKIDSS error bitmask flag 
HPPERRBITS UKIDSS error bitmask flag 
KPPERRBITS UKIDSS error bitmask flag 
DSG_PSF_R (PSFMag_r - ModelMag_r) from SDSS Coadd (note: Coadd has PSFMag problems, see Annis+2014)
DSG_PSF_I (PSFMag_i - ModelMag_i) from SDSS Coadd (note: Coadd has PSFMag problems, see Annis+2014)
DSG_PSF_Z                                                                                  (PSFMag_z - ModelMag_z) from SDSS Coadd (note: Coadd has PSFMag problems, see Annis+2014)
JK UKIDSS catalog-reported (J-K) color.  Aperture-corrected as if a point-source.
MODELMAG_U SDSS Coadd ModelMag (no extinction correction)
MODELMAG_G SDSS Coadd ModelMag (no extinction correction)
MODELMAG_R SDSS Coadd ModelMag (no extinction correction)
MODELMAG_I SDSS Coadd ModelMag (no extinction correction)
MODELMAG_Z SDSS Coadd ModelMag (no extinction correction)
FIBERMAG_I SDSS Coadd estimated 3ÕÕ diameter aperture magnitude assuming 2ÕÕ FWHM seeing
FIBER2MAG_I SDSS Coadd estimated 2ÕÕ diameter aperture magnitude assuming 2ÕÕ FWHM seeing
CMODELMAG_R SDSS Coadd CModelMag (no extinction correction)
CMODELMAG_I SDSS Coadd CModelMag (no extinction correction)
CMODELMAG_Z SDSS Coadd CModelMag (no extinction correction)
ZBOSS BOSS spectroscopic redshift
ZOTHER Unpopulated
ZOTHER_SOURCE Unpopulated
UMAG PSF Òsynthetic apertureÓ matched magnitude (extinction corrected).  (if near the detection limit, note that these are asinh mags)
GMAG PSF Òsynthetic apertureÓ matched magnitude (extinction corrected).  (if near the detection limit, note that these are asinh mags)
RMAG                                                                                       PSF Òsynthetic apertureÓ matched magnitude (extinction corrected).  (if near the detection limit, note that these are asinh mags)
IMAG PSF Òsynthetic apertureÓ matched magnitude (extinction corrected).  (if near the detection limit, note that these are asinh mags)
ZMAG PSF Òsynthetic apertureÓ matched magnitude (extinction corrected).  (if near the detection limit, note that these are asinh mags)
YMAG PSF Òsynthetic apertureÓ matched magnitude (extinction corrected)
JMAG PSF Òsynthetic apertureÓ matched magnitude (extinction corrected)
HMAG PSF Òsynthetic apertureÓ matched magnitude (extinction corrected)
KMAG PSF Òsynthetic apertureÓ matched magnitude (extinction corrected)
UERR Magnitude error (from ModelMag)
GERR Magnitude error (from ModelMag)
RERR Magnitude error (from ModelMag)
IERR Magnitude error (from ModelMag)
ZERR Magnitude error (from ModelMag)
YERR Magnitude error (from Aper4 error)
JERR Magnitude error (from Aper4 error)
HERR Magnitude error (from Aper4 error)
KERR Magnitude error (from Aper4 error)
UFNU Flux in nanomaggies (proper conversion from Luptitudes)
GFNU                                                                                       Flux in nanomaggies (proper conversion from Luptitudes)
RFNU Flux in nanomaggies (proper conversion from Luptitudes)
IFNU Flux in nanomaggies (proper conversion from Luptitudes)
ZFNU Flux in nanomaggies (proper conversion from Luptitudes)
YFNU Flux in nanomaggies (approximate at faint levels, since converting from regular magnitudes)
JFNU Flux in nanomaggies (approximate at faint levels, since converting from regular magnitudes)
HFNU Flux in nanomaggies (approximate at faint levels, since converting from regular magnitudes)
KFNU Flux in nanomaggies (approximate at faint levels, since converting from regular magnitudes)
UFNUERR Flux error in nanomaggies (proper conversion from Luptitudes)
GFNUERR Flux error in nanomaggies (proper conversion from Luptitudes)
RFNUERR Flux error in nanomaggies (proper conversion from Luptitudes)
IFNUERR Flux error in nanomaggies (proper conversion from Luptitudes)
ZFNUERR Flux error in nanomaggies (proper conversion from Luptitudes)
YFNUERR Flux error in nanomaggies (approximate at faint levels, since converting from regular magnitudes)
JFNUERR Flux in nanomaggies (approximate at faint levels, since converting from regular magnitudes)
HFNUERR Flux in nanomaggies (approximate at faint levels, since converting from regular magnitudes)
KFNUERR Flux in nanomaggies (approximate at faint levels, since converting from regular magnitudes)
YPETROMAG                                                                                  UKIDSS Petrosian mag (large bias for blended sources)
JPETROMAG UKIDSS Petrosian mag (large bias for blended sources)
HPETROMAG UKIDSS Petrosian mag (large bias for blended sources)
KPETROMAG UKIDSS Petrosian mag (large bias for blended sources)
YPETROMAGERR UKIDSS Petrosian mag error
JPETROMAGERR UKIDSS Petrosian mag error
HPETROMAGERR UKIDSS Petrosian mag error
KPETROMAGERR UKIDSS Petrosian mag error
YHALLMAG UKIDSS Hall mag (least biased for blended sources)
JHALLMAG UKIDSS Hall mag (least biased for blended sources)
HHALLMAG UKIDSS Hall mag (least biased for blended sources)
KHALLMAG UKIDSS Hall mag (least biased for blended sources)
YHALLMAGERR UKIDSS Hall mag error
JHALLMAGERR UKIDSS Hall mag error
HHALLMAGERR UKIDSS Hall mag error
KHALLMAGERR UKIDSS Hall mag error
YHALLTOT Total magnitude estimator (see Bundy et al.), adjusted from Hall mag to better handle blends  (USE THIS IF IN DOUBT)
JHALLTOT                                                                                   Total magnitude estimator (see Bundy et al.), adjusted from Hall mag to better handle blends  (USE THIS IF IN DOUBT)
HHALLTOT Total magnitude estimator (see Bundy et al.), adjusted from Hall mag to better handle blends  (USE THIS IF IN DOUBT)
KHALLTOT Total magnitude estimator (see Bundy et al.), adjusted from Hall mag to better handle blends  (USE THIS IF IN DOUBT)
YISOMAG UKIDSS isophotal mag (little bias in blended sources)
JISOMAG UKIDSS isophotal mag (little bias in blended sources)
HISOMAG UKIDSS isophotal mag (little bias in blended sources)
KISOMAG UKIDSS isophotal mag (little bias in blended sources)