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V/147/sdss12

The SDSS Photometric Catalogue, Release 12 (Alam+, 2015)

Data Release 12 (469,053,874 primary sources plus 324,960,094 secondary sources); 3,538,079 spectroscopic targets (original column names in green) (794013968 rows)

*Column*	*Value*		*Explain (UCD)*
_r	0.001	arcsec	Distance from center (006.124650-00.733111)[ICRS], at Epoch of catalog (ObsDate) (pos.angDistance) (POS_ANG_DIST_GENERAL)
_RAJ2000	00 24 29.91600	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-00 43 59.1984	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 21 56.25733	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-01 00 36.3466	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	108.05447089	deg	Galactic longitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) (POS_GAL_LON)
_Glat	-62.82411032	deg	Galactic latitude at Epoch=J0. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) (POS_GAL_LAT)

ra	006.124650	deg	⁽ⁱ⁾ Right Ascension of the object (ICRS) at Epoch="ObsDate" (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
dec	-00.733111	deg	⁽ⁱ⁾ Declination of the object (ICRS) at Epoch="ObsDate" (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
mode	2		[1/2] 1: primary (469,053,874 sources), 2: secondary (324,960,094 sources) (meta.code.class) (CLASS_CODE)
clean			[+] '+' indicates clean photometry (310,190,812 sources with mode 1+) (clean) (meta.code.qual;instr.setup) (CODE_QUALITY)
class	3		Type of object (3=galaxy, 6=star) (Note 1) (src.class) (CLASS_OBJECT)
SDSS12	J002429.91-004359.1		⁽ⁱ⁾ SDSS-DR12 name, based on J2000 position (meta.id) (ID_ALTERNATIVE)
m_SDSS12			[*] The asterisk indicates that 2 different SDSS objects share the same SDSS12 name (meta.code.multip) (CODE_MULT_INDEX)

DR12	Im		Image from SDSS-server (DR12) (meta.ref.url) (DATA_LINK)

SDSS-ID	3325-301-2-0149-0625		⁽ⁱ⁾ [0-9 -] SDSS object identifier (Note 2) (meta.id) (ID_ALTERNATIVE)
objID	1237659754446520945		⁽ⁱ⁾ SDSS unique object identifier (2) (links to SDSS-DR12 details) (Note) (meta.id;meta.main) (ID_MAIN)
Sp-ID			⁽ⁱ⁾ Spectroscopic Plate-MJD-Fiber identifier (7) (Note) (meta.id) (ID_ALTERNATIVE)
SpObjID	0		Pointer to the spectrum of object, or 0 (Note 7) (meta.id) (ID_ALTERNATIVE)
parentID	0		Pointer to parent (if object deblended) (meta.id.parent) (ID_PARENT)
flags	281543964623104		Photo Object Attribute flags (Note 3) (meta.code.error) (CODE_MISC)
Status	1025		Hexadecimal status (Note 4) (meta.code) (CODE_MISC)
raErr	0.122	arcsec	[0/51703] Mean error on RAdeg (raErr) (stat.error;pos.eq.ra) (ERROR)
decErr	0.156	arcsec	[0/20301] Mean error on DEdeg (decErr) (stat.error;pos.eq.dec) (ERROR)
ObsDate	2002.6786	yr	⁽ⁱ⁾ Mean Observation date (Note 6) (time.epoch;obs;stat.mean) (TIME_DATE)
Q	1		[1/3] Quality of the observation: 1=bad 2=acceptable 3=good (meta.code.qual;obs.param;obs) (CODE_QUALITY)
u	24.008	mag	⁽ⁱ⁾ [4/38] Model magnitude in u filter, AB scale (u) (Note 5) (phot.mag;em.opt.U) (PHOT_SDSS_U)
err_u	1.665	mag	Mean error on umag (err_u) (stat.error;phot.mag) (ERROR)
g	22.847	mag	⁽ⁱ⁾ [5/40] Model magnitude in g filter, AB scale (g) (Note 5) (phot.mag;em.opt.B) (PHOT_SDSS_G)
err_g	0.326	mag	Mean error on gmag (err_g) (stat.error;phot.mag) (ERROR)
r	21.809	mag	⁽ⁱ⁾ [4/39] Model magnitude in r filter, AB scale (r) (Note 5) (phot.mag;em.opt.R) (PHOT_SDSS_R)
err_r	0.179	mag	Mean error on rmag (err_r) (stat.error;phot.mag) (ERROR)
i	21.433	mag	⁽ⁱ⁾ [3/40] Model magnitude in i filter, AB scale (i) (Note 5) (phot.mag;em.opt.I) (PHOT_SDSS_I)
err_i	0.204	mag	Mean error on imag (err_i) (stat.error;phot.mag) (ERROR)
z	23.423	mag	⁽ⁱ⁾ [3/38] Model magnitude in z filter, AB scale (z) (Note 5) (phot.mag;em.opt.I) (PHOT_SDSS_Z)
err_z	1.267	mag	Mean error on zmag (err_z) (stat.error;phot.mag) (ERROR)
zsp			⁽ⁱ⁾ [-0.02/7.1] Spectroscopic redshift (when SpObjID>0) (Note 7) (src.redshift) (REDSHIFT_HC)
e_zsp			Mean error on zsp (negative for bad fit) (Note 7) (stat.error) (ERROR)
f_zsp			[0/196] "zwarning" flag (Note 9) (meta.code) (CODE_MISC)
velDisp		km/s	[0/850] Velocity dispersion (velDisp) (phys.veloc.dispersion) (VELOC_DISP)
velDispErr		km/s	Mean error on Vdisp (velDispErr) (stat.error) (ERROR)
instrument			Spectral instrument used (SDSS or BOSS) (instrument) (meta.id;instr) (INST_ID)
sourceType			Source type (sourceType) (10) (list of types) (Note) (src.class) (CLASS_OBJECT)
spCl			Spectroscopic class: GALAXY, QSO, STAR (meta.code.class;pos.parallax.spect) (CLASS_STAR/GALAXY)
subClass			Spectroscopic subclass (subClass) (Note 11) (src.spType) (SPECT_GENERAL)
snMedian			[0/132] Median signal-to-noise over all good pixels (snMedian) (em.wl.central;stat.median) (INST_S/N)
flags_u	9007199397347585		Detection flags, u band (flags_u) (Note 3) (meta.code) (CODE_MISC)
probPSF_u	1		0=notStar, 1=Star in u band (probPSF_u) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_u	6		[0/6] Phototype in u band, 6=Star (type_u) (Note 1) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
uDate	2002.6786	yr	Date of observation in u band (Note 6) (time.epoch) (TIME_DATE)
u'mag	24.008	mag	[4/38] Model magnitude in u' filter (= umag) (Note 5) (phot.mag;em.opt.U) (PHOT_SDSS_U)
e_u'mag	1.665	mag	Mean error on u'mag (= e_umag) (stat.error;phot.mag) (ERROR)
psfMag_u	24.396	mag	[5/34] PSF magnitude in u band (psfMag_u) (phot.mag;em.opt.U) (PHOT_SDSS_U)
psfMagErr_u	1.158	mag	Mean error on upmag (psfMagErr_u) (stat.error;phot.mag) (ERROR)
petroMag_u	28.982	mag	[3/43] Petrosian magnitude in u band (petroMag_u) (phot.mag;em.opt.U) (PHOT_SDSS_U)
petroMagErr_u	0.116	mag	Mean error on uPmag (petroMagErr_u) (stat.error;phot.mag) (ERROR)
petroRad_u	2.970	arcsec	[0/260] Petrosian radius in u band (petroRad_u) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_u		arcsec	Mean error in uPrad (petroRadErr_u) (stat.error) (ERROR)
offsetRa_u	0.06	arcsec	Offset of u position along RA (offsetRa_u) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_u	-0.01	arcsec	Offset of u position along Dec (offsetDec_u) (pos.angDistance) (POS_EQ_DEC_OFF)
deVRad_u	0.112	arcsec	de Vaucouleurs fit radius, u band (deVRad_u) (phys.angSize;src) (EXTENSION_RAD)
udVell	0.992	arcsec	de Vaucouleurs fit ellipt, u band (1-deVAB_u) (src.ellipticity) (PHYS_ELLIPTICITY)
deVPhi_u	130.8	deg	Position angle of dVrad in u band (deVPhi_u) (pos.posAng) (POS_POS-ANG)
flags_g	9007199397347585		Detection flags, g band (flags_g) (Note 3) (meta.code) (CODE_MISC)
probPSF_g	0		0=notStar, 1=Star in g band (probPSF_g) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_g	3		Phototype in g band, 6=Star (type_g) (Note 1) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
gDate	2002.6786	yr	Date of observation in g band (Note 6) (time.epoch) (TIME_DATE)
g'mag	22.847	mag	[5/39] Model magnitude in g' filter (= gmag) (Note 5) (phot.mag;em.opt.B) (PHOT_SDSS_G)
e_g'mag	0.326	mag	Mean error on g'mag (= e_gmag) (stat.error;phot.mag) (ERROR)
psfMag_g	23.354	mag	[5/37] PSF magnitude in g band (psfMag_g) (phot.mag;em.opt.B) (PHOT_SDSS_G)
psfMagErr_g	0.296	mag	Mean error on gpmag (psfMagErr_g) (stat.error;phot.mag) (ERROR)
petroMag_g	24.141	mag	[4/46] Petrosian magnitude in g band (petroMag_g) (phot.mag;em.opt.B) (PHOT_SDSS_G)
petroMagErr_g	1.436	mag	Mean error on gPmag (petroMagErr_g) (stat.error;phot.mag) (ERROR)
petroRad_g	2.970	arcsec	Petrosian radius in g band (petroRad_g) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_g		arcsec	Mean error in gPrad (petroRadErr_g) (stat.error) (ERROR)
offsetRa_g	0.04	arcsec	Offset of g position along RA (offsetRa_g) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_g	0.02	arcsec	Offset of g position along Dec (offsetDec_g) (pos.angDistance) (POS_EQ_DEC_OFF)
deVRad_g	0.366	arcsec	de Vaucouleurs fit radius, g band (deVRad_g) (phys.angSize;src) (EXTENSION_RAD)
gdVell	0.050	arcsec	de Vaucouleurs fit ellipt, g band (1-deVAB_g) (src.ellipticity) (PHYS_ELLIPTICITY)
deVPhi_g	39.0	deg	Position angle of dVrad in g band (deVPhi_g) (pos.posAng) (POS_POS-ANG)
flags_r	4503874773712896		Detection flags, r band (flags_r) (Note 3) (meta.code) (CODE_MISC)
probPSF_r	0		0=notStar, 1=Star in r band (probPSF_r) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_r	3		Phototype in r band, 6=Star (type_r) (Note 1) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
rDate	2002.6786	yr	Date of observation in r band (Note 6) (time.epoch) (TIME_DATE)
r'mag	21.809	mag	[4/39] Model magnitude in r' filter (= rmag) (Note 5) (phot.mag;em.opt.R) (PHOT_SDSS_R)
e_r'mag	0.179	mag	Mean error on r'mag (= e_rmag) (stat.error;phot.mag) (ERROR)
psfMag_r	22.489	mag	[4/33] PSF magnitude in r band (psfMag_r) (phot.mag;em.opt.R) (PHOT_SDSS_R)
psfMagErr_r	0.180	mag	Mean error on rpmag (psfMagErr_r) (stat.error;phot.mag) (ERROR)
petroMag_r	22.157	mag	[4/43] Petrosian magnitude in r band (petroMag_r) (phot.mag;em.opt.R) (PHOT_SDSS_R)
petroMagErr_r	0.442	mag	Mean error on rPmag (petroMagErr_r) (stat.error;phot.mag) (ERROR)
petroRad_r	1.830	arcsec	Petrosian radius in r band (petroRad_r) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_r	0.519	arcsec	Mean error in rPrad (petroRadErr_r) (stat.error) (ERROR)
offsetRa_r	0.00	arcsec	Offset of r position along RA (offsetRa_r) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_r	0.00	arcsec	Offset of r position along Dec (offsetDec_r) (pos.angDistance) (POS_EQ_DEC_OFF)
deVRad_r	1.553	arcsec	de Vaucouleurs fit radius, r band (deVRad_r) (phys.angSize;src) (EXTENSION_RAD)
rdVell	0.100	arcsec	de Vaucouleurs fit ellipt, r band (1-deVAB_r) (src.ellipticity) (PHYS_ELLIPTICITY)
deVPhi_r	173.9	deg	Position angle of dVrad in r band (deVPhi_r) (pos.posAng) (POS_POS-ANG)
flags_i	275288981504		Detection flags, i band (flags_i) (Note 3) (meta.code) (CODE_MISC)
probPSF_i	1		0=notStar, 1=Star in i band (probPSF_i) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_i	6		Phototype in i band, 6=Star (type_i) (Note 1) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
iDate	2002.6786	yr	Date of observation in i band (Note 6) (time.epoch) (TIME_DATE)
i'mag	21.433	mag	[3/40] Model magnitude in i' filter (= imag) (Note 5) (phot.mag;em.opt.I) (PHOT_SDSS_I)
e_i'mag	0.204	mag	Mean error on i'mag (= e_imag) (stat.error;phot.mag) (ERROR)
psfMag_i	21.898	mag	[3/34] PSF magnitude in i band (psfMag_i) (phot.mag;em.opt.I) (PHOT_SDSS_I)
psfMagErr_i	0.165	mag	Mean error on ipmag (psfMagErr_i) (stat.error;phot.mag) (ERROR)
petroMag_i	21.980	mag	[3/45] Petrosian magnitude in i band (petroMag_i) (phot.mag;em.opt.I) (PHOT_SDSS_I)
petroMagErr_i	0.728	mag	Mean error on iPmag (petroMagErr_i) (stat.error;phot.mag) (ERROR)
petroRad_i	1.098	arcsec	Petrosian radius in i band (petroRad_i) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_i	0.100	arcsec	Mean error in iPrad (petroRadErr_i) (stat.error) (ERROR)
offsetRa_i	0.22	arcsec	Offset of i position along RA (offsetRa_i) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_i	-0.24	arcsec	Offset of i position along Dec (offsetDec_i) (pos.angDistance) (POS_EQ_DEC_OFF)
deVRad_i	0.218	arcsec	de Vaucouleurs fit radius, i band (deVRad_i) (phys.angSize;src) (EXTENSION_RAD)
idVell	0.050	arcsec	de Vaucouleurs fit ellipt, i band (1-deVAB_i) (src.ellipticity) (PHYS_ELLIPTICITY)
deVPhi_i	63.6	deg	Position angle of dVrad in i band (deVPhi_i) (pos.posAng) (POS_POS-ANG)
flags_z	9007199388958721		Detection flags, z band (flags_z) (Note 3) (meta.code) (CODE_MISC)
probPSF_z	0		0=notStar, 1=Star in z band (probPSF_z) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
type_z	3		Phototype in z band, 6=Star (type_z) (Note 1) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
zDate	2002.6786	yr	Date of observation in z band (Note 6) (time.epoch) (TIME_DATE)
z'mag	23.423	mag	[3/38] Model magnitude in z filter (= zmag) (Note 5) (phot.mag;em.opt.I) (PHOT_SDSS_Z)
e_z'mag	1.267	mag	Mean error on z'mag (= e_zmag) (stat.error;phot.mag) (ERROR)
psfMag_z	22.895	mag	[3/32] PSF magnitude in z band (psfMag_z) (phot.mag;em.opt.I) (PHOT_SDSS_Z)
psfMagErr_z	0.811	mag	Mean error on zpmag (psfMagErr_z) (stat.error;phot.mag) (ERROR)
petroMag_z	21.054	mag	[3/42] Petrosian magnitude in z band (petroMag_z) (phot.mag;em.opt.I) (PHOT_SDSS_Z)
petroMagErr_z	0.925	mag	Mean error on zPmag (petroMagErr_z) (stat.error;phot.mag) (ERROR)
petroRad_z	0.316	arcsec	Petrosian radius in z band (petroRad_z) (phys.angSize;src) (EXTENSION_RAD)
petroRadErr_z	0.105	arcsec	Mean error in zPrad (petroRadErr_z) (stat.error) (ERROR)
offsetRa_z	0.03	arcsec	Offset of z position along RA (offsetRa_z) (pos.angDistance) (POS_EQ_RA_OFF)
offsetDec_z	-0.00	arcsec	Offset of z position along Dec (offsetDec_z) (pos.angDistance) (POS_EQ_DEC_OFF)
deVRad_z	29.668	arcsec	de Vaucouleurs fit radius, z band (deVRad_z) (phys.angSize;src) (EXTENSION_RAD)
zdVell	0.050	arcsec	de Vaucouleurs fit ellipt, z band (1-deVAB_z) (src.ellipticity) (PHYS_ELLIPTICITY)
deVPhi_z	115.9	deg	Position angle of dVrad in z band (deVPhi_z) (pos.posAng) (POS_POS-ANG)
pmRa		mas/yr	[-6121/4129] Proper motion along Right Ascension (pmRa) (Note 8) (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pmRaErr		mas/yr	Mean error on pmRA (pmRaErr) (Note 8) (stat.error;pos.pm;pos.eq.ra) (ERROR)
pmDec		mas/yr	[-4846/4437] Proper motion along Declination (pmDec) (Note 8) (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pmDecErr		mas/yr	Mean error on pmDE (pmDecErr) (Note 8) (stat.error;pos.pm;pos.eq.dec) (ERROR)
sigRA		mas	[0/8662] RMS residual of proper motion fit in RA (Note 8) (stat.fit.residual) (FIT_RESIDUAL)
sigDE		mas	[0/10625] RMS residual of proper motion fit in Dec (Note 8) (stat.fit.residual) (FIT_RESIDUAL)
match			[1/4] Number of USNO-B objects matched within 1arcsec (match) (Note 8) (meta.number) (NUMBER)
nFit			[4/6] Number of detections used in the pm fit, including SDSS (nFit) (Note 8) (meta.number) (NUMBER)
g(O)			Magnitude from O plate recalibrated to g (Note 8) (phot.mag;em.opt.B) (PHOT_PHG_B)
r(E)			Magnitude from E plate recalibrated to r (Note 8) (phot.mag;em.opt.R) (PHOT_PHG_R)
g(J)			Magnitude from J plate recalibrated to g (Note 8) (phot.mag;em.opt.B) (PHOT_PHG_B)
r(F)			Magnitude from F plate recalibrated to r (Note 8) (phot.mag;em.opt.R) (PHOT_PHG_R)
i(N)			Magnitude from N plate recalibrated to i (Note 8) (phot.mag;em.opt.I) (PHOT_PHG_I)
zph			⁽ⁱ⁾ [-9999/] Photometric redshift; estimated by robust fit to nearest neighbors in a reference set (Note 12) (src.redshift) (REDSHIFT_PHOT)
zErr			[-9999/] Estimated error of the photometric redshift (zErr) (Note 12) (stat.error) (ERROR)
nnAvgZ			[0.009/0.9] average redshift of the nearest neighbors; if significantly different from zph this might be a better estimate than zph (nnAvgZ) (src.redshift.phot) (REDSHIFT_PHOT)
chisq_zph			Chi-square value for the minimum chi-square template fit (chisq_zph) (stat.value) (FIT_CHI2)
absMagU		mag	[-644/4] rest frame u' absolute magnitude (absMagU) (phys.magAbs) (PHOT_ABS-MAG_BAND)
absMagG		mag	[-472/3] rest frame g' absolute magnitude (absMagG) (phys.magAbs) (PHOT_ABS-MAG_BAND)
absMagR		mag	[-351/3] rest frame r' absolute magnitude (absMagR) (phys.magAbs) (PHOT_ABS-MAG_BAND)
absMagI		mag	[-271/7] rest frame i' absolute magnitude (absMagI) (phys.magAbs) (PHOT_ABS-MAG_BAND)
absMagZ		mag	[-199/3] rest frame z' absolute magnitude (absMagZ) (phys.magAbs) (PHOT_ABS-MAG_BAND)