TABLE  Photoz

Please see the Photometric Redshifts entry in Algorithms for more information about the Photoz and Photoz2 tables. NOTE: This table may be empty initially because the photoz values are computed in a separate calculation after the main data release.

name	type	length	unit	ucd	description
pId	int	4		CODE_MISC	unique Id for photoz version
rank	int	4		NUMBER	the rank of the photoz determination for this object, default is 0
version	varchar	6		ID_VERSION	the version of photoz code
class	int	4		CLASS_OBJECT	char describing the object type (galaxy:1, QSO:tbd, ...)
objID	bigint	8		ID_MAIN	unique ID pointing to PhotoObjAll table
chiSq	real	4		STAT_LIKELIHOOD	the chi-square value for the fit
z	real	4		REDSHIFT_PHOT	photometric redshift
zErr	real	4		REDSHIFT_PHOT ERROR	the marginalized error of the photometric redshift
t	real	4		CLASS_OBJECT	photometric SED type between 0 and 1
tErr	real	4		CLASS_OBJECT ERROR	the marginalized error of the photometric type
c_tt	real	4		STAT_COVARIANCE	tt element of covariance matrix
c_tz	real	4		STAT_COVARIANCE	tz element of covariance matrix
c_zz	real	4		STAT_COVARIANCE	zz element of covariance matrix
fitRadius	int	4	pix	EXTENSION_RAD	radius of area used for covariance fit
fitThreshold	real	4		STAT_PROBABILITY	probability threshold for covariance fitting, peak normalized to 1
quality	int	4		CODE_QUALITY	integer describing the quality (best:5, lowest 0)
dmod	real	4	mag	PHOT_DIST-MOD	the distance modulus for Omega=0.3, Lambda=0.7 cosmology
rest_ug	real	4	mag	PHOT_CI	rest frame u-g color
rest_gr	real	4	mag	PHOT_CI	rest frame g-r color
rest_ri	real	4	mag	PHOT_CI	rest frame r-i color
rest_iz	real	4	mag	PHOT_CI	rest frame i-z color
kcorr_u	real	4	mag	PHOT_K-CORRECTION	k correction
kcorr_g	real	4	mag	PHOT_K-CORRECTION	k correction
kcorr_r	real	4	mag	PHOT_K-CORRECTION	k correction
kcorr_i	real	4	mag	PHOT_K-CORRECTION	k correction
kcorr_z	real	4	mag	PHOT_K-CORRECTION	k correction
absMag_u	real	4	mag	PHOT_ABS-MAG PHOT_SDSS_U	rest frame u' abs magnitude
absMag_g	real	4	mag	PHOT_ABS-MAG PHOT_SDSS_G	rest frame g' abs magnitude
absMag_r	real	4	mag	PHOT_ABS-MAG PHOT_SDSS_R	rest frame r' abs magnitude
absMag_i	real	4	mag	PHOT_ABS-MAG PHOT_SDSS_I	rest frame i' abs magnitude
absMag_z	real	4	mag	PHOT_ABS-MAG PHOT_SDSS_Z	rest frame z' abs magnitude