OBJID		SDSS Coadd object ID
RA
DEC
ORIGIN_BEST		Redshift information origin.  0: no redshift, 1: Reis et al., 2: redMaPPer, 3: redMaPPer zred, 4: spec-z (from any SDSS-III or prior survey)
ZBEST		Best possible redshift information combining all estimators available, prioritized by redshift precision
ZPERT		Scatter-normalized redshift estimates, by perturbing about a gaussian kernel to obtain a target precision for all sources
MASS_IR_BEST		Best log stellar mass estimate, from the combination of all photo-z estimators available
MASSERR_IR_BEST		Best log stellar mass error estimate (dex), from the combination of all photo-z estimators available
MASS_IR_PERT		Scatter-normalized near-IR based log stellar mass estimate.  Accounts for both redshift and near-IR flux errors (default is K-band, but uses H-band if needed)
MASS_OPT_BEST		Best log stellar mass ugriz only estimate, from the combination of all photo-z estimators available
MASSERR_OPT_BEST		Best log stellar mass ugriz only error estimate (dex), from the combination of all photo-z estimators available
MASS_OPT_PERT		Scatter-normalized ugriz based log stellar mass estimate.  Accounts for both redshift and ModelMag_z flux errors
B1000_IR_BEST		Best KCorrect “birth parameter” (SFR in last 1 Gyr compared to average).  Uses SDSS + UKIDSS photometry.
B300_IR_BEST		Best KCorrect “birth parameter” (SFR in last 300 Myr compared to average).  Uses SDSS + UKIDSS photometry.
KCOR_MASS_BEST		Best KCorrect log stellar mass estimate, from the combination of all photo-z estimators available
ABSMAG_BEST		Best KCorrect absolute magnitudes array for [ugrizYJHK].  H0 = 70 km/s/Mpc, Omega_M = 0.3
SIGMAZ_REIS		Expected 1sigma Reis et al. redshift error, interpolated at the galaxy’s redshift from the 3-sigma clipped standard deviation in photo-z vs. spec-z as a function of redshift.
SIGMAZ_RM		Expected 1sigma redMaPPer redshift error, interpolated at the galaxy’s redshift from the 3-sigma clipped standard deviation in photo-z vs. spec-z as a function of redshift.
SIGMAZ_ZRED		Expected 1sigma redMaPPer “zred” redshift error, interpolated at the galaxy’s redshift from the 3-sigma clipped standard deviation in photo-z vs. spec-z as a function of redshift.
SIGMAZ_BEST		Best, expected 1sigma redshift error, from the combination of all photo-z estimators available
LUMERR_DEX		Near-IR flux error (in dex) in the band which normalizes the near-IR stellar mass estimates (default is K-band, but uses H-band if needed)