Individual spectroscopy parameters (see also the spSpec Data Model):

name	type	length	unit	ucd	description
specObjID	bigint	8		ID_CATALOG	Unique ID
mjd	int	4	MJD	TIME_DATE	MJD of observation
plate	smallint	2		ID_PLATE	Plate ID
tile	smallint	2		ID_PLATE	Tile ID
xFocal	float	8		POS_CCD_X	X Focal
yFocal	float	8		POS_CCD_Y	Y Focal
fiberID	smallint	2		ID_FIBER	Fiber ID
z	real	4		REDSHIFT	Final Redshift
zErr	real	4		REDSHIFT ERROR	Redshift error
zConf	real	4		REDSHIFT STAT_PROBABILITY	Redshift confidence
zStatus	smallint	2		CODE_QUALITY	Redshift status
specClass	smallint	2		CLASS_OBJECT	Spectral Classification
zWarning	int	4		CODE_QUALITY	Warning Flags
velDisp	real	4	???	VELOC_DISP	Velocity Dispersion
velDispErr	real	4		VELOC_DISP ERROR	Velocity Dispersion error
eCoeff_0	real	4		FIT_PARAM	Expansion Coeff for Galaxies
eCoeff_1	real	4		FIT_PARAM	Expansion Coeff for Galaxies
eCoeff_2	real	4		FIT_PARAM	Expansion Coeff for Galaxies
eCoeff_3	real	4		FIT_PARAM	Expansion Coeff for Galaxies
eCoeff_4	real	4		FIT_PARAM	Expansion Coeff for Galaxies
eClass	real	4		CLASS_OBJECT	Classification
nGood	int	4	pix	NUMBER	Good Pixels
sn_0	real	4		INST_S/N	Median S/N in g'
sn_1	real	4		INST_S/N	Median S/N in r'
sn_2	real	4		INST_S/N	Median S/N in i'
mag_0	real	4	mag	PHOT_SDSS_G	Synthetic Magnitude in g'
mag_1	real	4	mag	PHOT_SDSS_R	Synthetic Magnitude in r'
mag_2	real	4	mag	PHOT_SDSS_I	Synthetic Magnitude in i'
ra	float	8	deg	POS_EQ_RA_MAIN	ra in J2000
dec	float	8	deg	POS_EQ_DEC_MAIN	dec in J2000
cx	float	8		POS_EQ_CART_X?	x of Normal unit vector in J2000
cy	float	8		POS_EQ_CART_Y?	y of Normal unit vector in J2000
cz	float	8		POS_EQ_CART_Z?	z of Normal unit vector in J2000
htmID	bigint	8		CODE_HTM	20 deep Hierarchical Triangular Mesh ID
fiberMag_u	real	4	luptitudes	PHOT_SDSS_U	Fiber Magnitudes
fiberMag_g	real	4	luptitudes	PHOT_SDSS_G	Fiber Magnitudes
fiberMag_r	real	4	luptitudes	PHOT_SDSS_R	Fiber Magnitudes
fiberMag_i	real	4	luptitudes	PHOT_SDSS_I	Fiber Magnitudes
fiberMag_z	real	4	luptitudes	PHOT_SDSS_Z	Fiber Magnitudes
primTarget	int	4		CODE_MISC	Specifies which primary target catagories the object was selected in.
secTarget	int	4		CODE_MISC	Specifies which secondary target catagories the object was selected in.
seguePrimTarget	int	4		CODE_MISC	Specifies which SEGUE primary target catagories the object was selected in.
segueSecTarget	int	4		CODE_MISC	Specifies which SEGUE secondary target catagories the object was selected in.
otherPrimTarget	int	4		CODE_MISC	Specifies which other program primary target catagories the object was selected in.
otherSecTarget	int	4		CODE_MISC	Specifies which other program secondary target catagories the object was selected in.
pixMin	smallint	2	pix	INST_DET_LIMIT	Pixmin
pixMax	smallint	2	pix	INST_DET_LIMIT	Pixmax
sci_sn	real	4		CODE_MISC	Science signal to noise ratio
smear_sn	real	4		CODE_MISC	Smear signal to noise ratio
sm_leg_0	real	4		CODE_MISC	1st legendre coeff. for smear correct
sm_leg_1	real	4		CODE_MISC	2nd legendre coeff. for smear correct
sm_leg_2	real	4		CODE_MISC	3rd legendre coeff. for smear correct
sciencePrimary	smallint	2		CODE_MISC	Deemed to be science-worthy (defines default view SpecObj)
loadVersion	int	4		ID_TRACER	Load Version
plateID	bigint	8		ID_PLATE	Link to plate on which the spectrum was taken
spectrographID	smallint	2		INST_ID	which spectrograph (1,2)
throughput	int	4	???	NUMBER	fiber throughput as measured by mapper
objType	int	4		CLASS_OBJECT	object type (plPlugMap style)
objTypeName	varchar	32		CLASS_OBJECT	Object Type as string
targetID	bigint	8		ID_CATALOG	ID of Target
targetObjID	bigint	8		ID_CATALOG	ID of target PhotoObj
bestObjID	bigint	8		ID_MAIN	ID of best PhotoObj
img	image	16		SPECT	GIF image of the spectrum

Imaging Parameters

Which imaging parameters do you want returned from your query?

Note: "Target Imaging" refers to the imaging data (run) and/or processing (rerun) combination used in selecting targets for spectroscopic followup; "Best Imaging" refers to the "latest and greatest" run/rerun combination and therefore generally supersedes the run/rerun combination of "Target Imaging".

Caveat: In rare instances the "Best Imaging" object matched to a spectrum may NOT correspond to the original "Target Imaging" object. For example, this may occur when there were deblending problems in the "Target Imaging", such as when a bright off-center HII region was targeted instead of the parent galaxy, and where that HII region is then properly treated in the "Best Imaging" and is no longer a cataloged object. When in doubt, please compare the magnitudes and coordinates of the "Target Imaging" and "Best Imaging" objects.

Useful imaging parameter combinations:

The SDSSname parameter returns the official IAU SDSS designation for the object, in the format:

Individual imaging parameters (see also the tsObj Data Model):

name	type	length	unit	ucd	description
objID	bigint	8		ID_MAIN	Unique SDSS identifier composed from [skyVersion,rerun,run,camcol,field,obj].
skyVersion	tinyint	1		CODE_MISC	0 = OPDB target, 1 = OPDB best
run	smallint	2		OBS_RUN	Run number
rerun	smallint	2		CODE_MISC	Rerun number
camcol	tinyint	1		INST_ID	Camera column
field	smallint	2		ID_FIELD	Field number
obj	smallint	2		ID_NUMBER	The object id within a field. Usually changes between reruns of the same field.
mode	tinyint	1		CLASS_OBJECT	1: primary, 2: secondary, 3: family object, 4: outside chunk boundary.
nChild	smallint	2		NUMBER	Number of children if this is a composite object that has been deblended. BRIGHT (in a flags sense) objects also have nchild == 1, the non-BRIGHT sibling.
type	smallint	2		CLASS_OBJECT	Morphological type classification of the object.
clean	int	4		CODE_MISC	Clean photometry flag for point sources (1=clean, 0=unclean).
probPSF	real	4		STAT_PROBABILITY	Probability that the object is a star. Currently 0 if type == 3 (galaxy), 1 if type == 6 (star).
insideMask	tinyint	1		CODE_MISC	Flag to indicate whether object is inside a mask and why
flags	bigint	8		CODE_MISC	Photo Object Attribute Flags
rowc	real	4	pix	POS_CCD_Y	Row center position (r' coordinates)
rowcErr	real	4	pix	POS_CCD_Y ERROR	Row center position error (r' coordinates)
colc	real	4	pix	POS_CCD_X	Column center position (r' coordinates)
colcErr	real	4	pix	POS_CCD_X ERROR	Column center position error (r' coordinates)
rowv	real	4	deg/day	POS_ANG_VEL	Row-component of object's velocity.
rowvErr	real	4	deg/day	POS_ANG_VEL ERROR	Row-component of object's velocity error
colv	real	4	deg/day	POS_ANG_VEL	Column-component of object's velocity.
colvErr	real	4	deg/day	POS_ANG_VEL ERROR	Column-component of object's velocity error
rowc_u	real	4	pix	POS_CCD_Y	Row center
rowc_g	real	4	pix	POS_CCD_Y	Row center
rowc_r	real	4	pix	POS_CCD_Y	Row center
rowc_i	real	4	pix	POS_CCD_Y	Row center
rowc_z	real	4	pix	POS_CCD_Y	Row center
rowcErr_u	real	4	pix	POS_CCD_Y ERROR	Row center error
rowcErr_g	real	4	pix	POS_CCD_Y ERROR	Row center error
rowcErr_r	real	4	pix	POS_CCD_Y ERROR	Row center error
rowcErr_i	real	4	pix	POS_CCD_Y ERROR	Row center error
rowcErr_z	real	4	pix	POS_CCD_Y ERROR	Row center error
colc_u	real	4	pix	POS_CCD_X	Column center
colc_g	real	4	pix	POS_CCD_X	Column center
colc_r	real	4	pix	POS_CCD_X	Column center
colc_i	real	4	pix	POS_CCD_X	Column center
colc_z	real	4	pix	POS_CCD_X	Column center
colcErr_u	real	4	pix	POS_CCD_X ERROR	Column center error
colcErr_g	real	4	pix	POS_CCD_X ERROR	Column center error
colcErr_r	real	4	pix	POS_CCD_X ERROR	Column center error
colcErr_i	real	4	pix	POS_CCD_X ERROR	Column center error
colcErr_z	real	4	pix	POS_CCD_X ERROR	Column center error
sky_u	real	4	maggies/arcsec^2	INST_SKY_LEVEL	Sky flux at the center of object (allowing for siblings if blended).
sky_g	real	4	maggies/arcsec^2	INST_SKY_LEVEL	Sky flux at the center of object (allowing for siblings if blended).
sky_r	real	4	maggies/arcsec^2	INST_SKY_LEVEL	Sky flux at the center of object (allowing for siblings if blended).
sky_i	real	4	maggies/arcsec^2	INST_SKY_LEVEL	Sky flux at the center of object (allowing for siblings if blended).
sky_z	real	4	maggies/arcsec^2	INST_SKY_LEVEL	Sky flux at the center of object (allowing for siblings if blended).
skyErr_u	real	4	maggies/arcsec^2	INST_SKY_LEVEL ERROR	Sky flux error
skyErr_g	real	4	maggies/arcsec^2	INST_SKY_LEVEL ERROR	Sky flux error
skyErr_r	real	4	maggies/arcsec^2	INST_SKY_LEVEL ERROR	Sky flux error
skyErr_i	real	4	maggies/arcsec^2	INST_SKY_LEVEL ERROR	Sky flux error
skyErr_z	real	4	maggies/arcsec^2	INST_SKY_LEVEL ERROR	Sky flux error
psfMag_u	real	4	mag	PHOT_SDSS_U	PSF flux
psfMag_g	real	4	mag	PHOT_SDSS_G	PSF flux
psfMag_r	real	4	mag	PHOT_SDSS_R	PSF flux
psfMag_i	real	4	mag	PHOT_SDSS_I	PSF flux
psfMag_z	real	4	mag	PHOT_SDSS_Z	PSF flux
psfMagErr_u	real	4	mag	PHOT_SDSS_U ERROR	PSF flux error
psfMagErr_g	real	4	mag	PHOT_SDSS_G ERROR	PSF flux error
psfMagErr_r	real	4	mag	PHOT_SDSS_R ERROR	PSF flux error
psfMagErr_i	real	4	mag	PHOT_SDSS_I ERROR	PSF flux error
psfMagErr_z	real	4	mag	PHOT_SDSS_Z ERROR	PSF flux error
fiberMag_u	real	4	mag	PHOT_SDSS_U	Flux in 3 arcsec diameter fiber radius
fiberMag_g	real	4	mag	PHOT_SDSS_G	Flux in 3 arcsec diameter fiber radius
fiberMag_r	real	4	mag	PHOT_SDSS_R	Flux in 3 arcsec diameter fiber radius
fiberMag_i	real	4	mag	PHOT_SDSS_I	Flux in 3 arcsec diameter fiber radius
fiberMag_z	real	4	mag	PHOT_SDSS_Z	Flux in 3 arcsec diameter fiber radius
fiberMagErr_u	real	4	mag	PHOT_SDSS_U ERROR	Flux in 3 arcsec diameter fiber radius error
fiberMagErr_g	real	4	mag	PHOT_SDSS_G ERROR	Flux in 3 arcsec diameter fiber radius error
fiberMagErr_r	real	4	mag	PHOT_SDSS_R ERROR	Flux in 3 arcsec diameter fiber radius error
fiberMagErr_i	real	4	mag	PHOT_SDSS_I ERROR	Flux in 3 arcsec diameter fiber radius error
fiberMagErr_z	real	4	mag	PHOT_SDSS_Z ERROR	Flux in 3 arcsec diameter fiber radius error
petroMag_u	real	4	mag	PHOT_SDSS_U	Petrosian flux
petroMag_g	real	4	mag	PHOT_SDSS_G	Petrosian flux
petroMag_r	real	4	mag	PHOT_SDSS_R	Petrosian flux
petroMag_i	real	4	mag	PHOT_SDSS_I	Petrosian flux
petroMag_z	real	4	mag	PHOT_SDSS_Z	Petrosian flux
petroMagErr_u	real	4	mag	PHOT_SDSS_U ERROR	Petrosian flux error
petroMagErr_g	real	4	mag	PHOT_SDSS_G ERROR	Petrosian flux error
petroMagErr_r	real	4	mag	PHOT_SDSS_R ERROR	Petrosian flux error
petroMagErr_i	real	4	mag	PHOT_SDSS_I ERROR	Petrosian flux error
petroMagErr_z	real	4	mag	PHOT_SDSS_Z ERROR	Petrosian flux error
petroRad_u	real	4	arcsec	EXTENSION_RAD	Petrosian radius
petroRad_g	real	4	arcsec	EXTENSION_RAD	Petrosian radius
petroRad_r	real	4	arcsec	EXTENSION_RAD	Petrosian radius
petroRad_i	real	4	arcsec	EXTENSION_RAD	Petrosian radius
petroRad_z	real	4	arcsec	EXTENSION_RAD	Petrosian radius
petroRadErr_u	real	4	arcsec	EXTENSION_RAD ERROR	Petrosian radius error
petroRadErr_g	real	4	arcsec	EXTENSION_RAD ERROR	Petrosian radius error
petroRadErr_r	real	4	arcsec	EXTENSION_RAD ERROR	Petrosian radius error
petroRadErr_i	real	4	arcsec	EXTENSION_RAD ERROR	Petrosian radius error
petroRadErr_z	real	4	arcsec	EXTENSION_RAD ERROR	Petrosian radius error
petroR50_u	real	4	arcsec	EXTENSION_RAD	Radius containing 50% of Petrosian flux
petroR50_g	real	4	arcsec	EXTENSION_RAD	Radius containing 50% of Petrosian flux
petroR50_r	real	4	arcsec	EXTENSION_RAD	Radius containing 50% of Petrosian flux
petroR50_i	real	4	arcsec	EXTENSION_RAD	Radius containing 50% of Petrosian flux
petroR50_z	real	4	arcsec	EXTENSION_RAD	Radius containing 50% of Petrosian flux
petroR50Err_u	real	4	arcsec	EXTENSION_RAD ERROR	Error in radius with 50% of Petrosian flux error
petroR50Err_g	real	4	arcsec	EXTENSION_RAD ERROR	Error in radius with 50% of Petrosian flux error
petroR50Err_r	real	4	arcsec	EXTENSION_RAD ERROR	Error in radius with 50% of Petrosian flux error
petroR50Err_i	real	4	arcsec	EXTENSION_RAD ERROR	Error in radius with 50% of Petrosian flux error
petroR50Err_z	real	4	arcsec	EXTENSION_RAD ERROR	Error in radius with 50% of Petrosian flux error
petroR90_u	real	4	arcsec	EXTENSION_RAD	Radius containing 90% of Petrosian flux
petroR90_g	real	4	arcsec	EXTENSION_RAD	Radius containing 90% of Petrosian flux
petroR90_r	real	4	arcsec	EXTENSION_RAD	Radius containing 90% of Petrosian flux
petroR90_i	real	4	arcsec	EXTENSION_RAD	Radius containing 90% of Petrosian flux
petroR90_z	real	4	arcsec	EXTENSION_RAD	Radius containing 90% of Petrosian flux
petroR90Err_u	real	4	arcsec	EXTENSION_RAD ERROR	Error in radius with 90% of Petrosian flux error
petroR90Err_g	real	4	arcsec	EXTENSION_RAD ERROR	Error in radius with 90% of Petrosian flux error
petroR90Err_r	real	4	arcsec	EXTENSION_RAD ERROR	Error in radius with 90% of Petrosian flux error
petroR90Err_i	real	4	arcsec	EXTENSION_RAD ERROR	Error in radius with 90% of Petrosian flux error
petroR90Err_z	real	4	arcsec	EXTENSION_RAD ERROR	Error in radius with 90% of Petrosian flux error
q_u	real	4		FIT_PARAM	Stokes Q parameter
q_g	real	4		FIT_PARAM	Stokes Q parameter
q_r	real	4		FIT_PARAM	Stokes Q parameter
q_i	real	4		FIT_PARAM	Stokes Q parameter
q_z	real	4		FIT_PARAM	Stokes Q parameter
qErr_u	real	4		FIT_PARAM ERROR	Stokes Q parameter error
qErr_g	real	4		FIT_PARAM ERROR	Stokes Q parameter error
qErr_r	real	4		FIT_PARAM ERROR	Stokes Q parameter error
qErr_i	real	4		FIT_PARAM ERROR	Stokes Q parameter error
qErr_z	real	4		FIT_PARAM ERROR	Stokes Q parameter error
u_u	real	4		FIT_PARAM	Stokes U parameter
u_g	real	4		FIT_PARAM	Stokes U parameter
u_r	real	4		FIT_PARAM	Stokes U parameter
u_i	real	4		FIT_PARAM	Stokes U parameter
u_z	real	4		FIT_PARAM	Stokes U parameter
uErr_u	real	4		FIT_PARAM ERROR	Stokes U parameter error
uErr_g	real	4		FIT_PARAM ERROR	Stokes U parameter error
uErr_r	real	4		FIT_PARAM ERROR	Stokes U parameter error
uErr_i	real	4		FIT_PARAM ERROR	Stokes U parameter error
uErr_z	real	4		FIT_PARAM ERROR	Stokes U parameter error
mE1_u	real	4		FIT_PARAM	Adaptive E1 shape measure
mE1_g	real	4		FIT_PARAM	Adaptive E1 shape measure
mE1_r	real	4		FIT_PARAM	Adaptive E1 shape measure
mE1_i	real	4		FIT_PARAM	Adaptive E1 shape measure
mE1_z	real	4		FIT_PARAM	Adaptive E1 shape measure
mE2_u	real	4		FIT_PARAM	Adaptive E2 shape measure
mE2_g	real	4		FIT_PARAM	Adaptive E2 shape measure
mE2_r	real	4		FIT_PARAM	Adaptive E2 shape measure
mE2_i	real	4		FIT_PARAM	Adaptive E2 shape measure
mE2_z	real	4		FIT_PARAM	Adaptive E2 shape measure
mE1E1Err_u	real	4		FIT_PARAM ERROR	Covariance in E1/E1 shape measure
mE1E1Err_g	real	4		FIT_PARAM ERROR	Covariance in E1/E1 shape measure
mE1E1Err_r	real	4		FIT_PARAM ERROR	Covariance in E1/E1 shape measure
mE1E1Err_i	real	4		FIT_PARAM ERROR	Covariance in E1/E1 shape measure
mE1E1Err_z	real	4		FIT_PARAM ERROR	Covariance in E1/E1 shape measure
mE1E2Err_u	real	4		FIT_PARAM ERROR	Covariance in E1/E2 shape measure
mE1E2Err_g	real	4		FIT_PARAM ERROR	Covariance in E1/E2 shape measure
mE1E2Err_r	real	4		FIT_PARAM ERROR	Covariance in E1/E2 shape measure
mE1E2Err_i	real	4		FIT_PARAM ERROR	Covariance in E1/E2 shape measure
mE1E2Err_z	real	4		FIT_PARAM ERROR	Covariance in E1/E2 shape measure
mE2E2Err_u	real	4		FIT_PARAM ERROR	Covariance in E2/E2 shape measure
mE2E2Err_g	real	4		FIT_PARAM ERROR	Covariance in E2/E2 shape measure
mE2E2Err_r	real	4		FIT_PARAM ERROR	Covariance in E2/E2 shape measure
mE2E2Err_i	real	4		FIT_PARAM ERROR	Covariance in E2/E2 shape measure
mE2E2Err_z	real	4		FIT_PARAM ERROR	Covariance in E2/E2 shape measure
mRrCc_u	real	4		FIT_PARAM	Adaptive ( + )
mRrCc_g	real	4		FIT_PARAM	Adaptive ( + )
mRrCc_r	real	4		FIT_PARAM	Adaptive ( + )
mRrCc_i	real	4		FIT_PARAM	Adaptive ( + )
mRrCc_z	real	4		FIT_PARAM	Adaptive ( + )
mRrCcErr_u	real	4		FIT_PARAM ERROR	Error in adaptive ( + )
mRrCcErr_g	real	4		FIT_PARAM ERROR	Error in adaptive ( + )
mRrCcErr_r	real	4		FIT_PARAM ERROR	Error in adaptive ( + )
mRrCcErr_i	real	4		FIT_PARAM ERROR	Error in adaptive ( + )
mRrCcErr_z	real	4		FIT_PARAM ERROR	Error in adaptive ( + )
mCr4_u	real	4		FIT_PARAM	Adaptive fourth moment of object
mCr4_g	real	4		FIT_PARAM	Adaptive fourth moment of object
mCr4_r	real	4		FIT_PARAM	Adaptive fourth moment of object
mCr4_i	real	4		FIT_PARAM	Adaptive fourth moment of object
mCr4_z	real	4		FIT_PARAM	Adaptive fourth moment of object
mE1PSF_u	real	4		FIT_PARAM	Adaptive E1 for PSF
mE1PSF_g	real	4		FIT_PARAM	Adaptive E1 for PSF
mE1PSF_r	real	4		FIT_PARAM	Adaptive E1 for PSF
mE1PSF_i	real	4		FIT_PARAM	Adaptive E1 for PSF
mE1PSF_z	real	4		FIT_PARAM	Adaptive E1 for PSF
mE2PSF_u	real	4		FIT_PARAM	Adaptive E2 for PSF
mE2PSF_g	real	4		FIT_PARAM	Adaptive E2 for PSF
mE2PSF_r	real	4		FIT_PARAM	Adaptive E2 for PSF
mE2PSF_i	real	4		FIT_PARAM	Adaptive E2 for PSF
mE2PSF_z	real	4		FIT_PARAM	Adaptive E2 for PSF
mRrCcPSF_u	real	4		FIT_PARAM	Adaptive ( + ) for PSF
mRrCcPSF_g	real	4		FIT_PARAM	Adaptive ( + ) for PSF
mRrCcPSF_r	real	4		FIT_PARAM	Adaptive ( + ) for PSF
mRrCcPSF_i	real	4		FIT_PARAM	Adaptive ( + ) for PSF
mRrCcPSF_z	real	4		FIT_PARAM	Adaptive ( + ) for PSF
mCr4PSF_u	real	4		FIT_PARAM	Adaptive fourth moment for PSF
mCr4PSF_g	real	4		FIT_PARAM	Adaptive fourth moment for PSF
mCr4PSF_r	real	4		FIT_PARAM	Adaptive fourth moment for PSF
mCr4PSF_i	real	4		FIT_PARAM	Adaptive fourth moment for PSF
mCr4PSF_z	real	4		FIT_PARAM	Adaptive fourth moment for PSF
isoRowc_u	real	4	pix	FIT_PARAM	Isophotal row centroid
isoRowc_g	real	4	pix	FIT_PARAM	Isophotal row centroid
isoRowc_r	real	4	pix	FIT_PARAM	Isophotal row centroid
isoRowc_i	real	4	pix	FIT_PARAM	Isophotal row centroid
isoRowc_z	real	4	pix	FIT_PARAM	Isophotal row centroid
isoRowcErr_u	real	4	pix	FIT_PARAM	Isophotal row centroid error. PLACEHOLDER, set to -9999 or -1000
isoRowcErr_g	real	4	pix	FIT_PARAM	Isophotal row centroid error. PLACEHOLDER, set to -9999 or -1000
isoRowcErr_r	real	4	pix	FIT_PARAM	Isophotal row centroid error. PLACEHOLDER, set to -9999 or -1000
isoRowcErr_i	real	4	pix	FIT_PARAM	Isophotal row centroid error. PLACEHOLDER, set to -9999 or -1000
isoRowcErr_z	real	4	pix	FIT_PARAM	Isophotal row centroid error. PLACEHOLDER, set to -9999 or -1000
isoRowcGrad_u	real	4	pix/(mag/arcsec^2)	FIT_PARAM	Gradient in row centroid with isophote
isoRowcGrad_g	real	4	pix/(mag/arcsec^2)	FIT_PARAM	Gradient in row centroid with isophote
isoRowcGrad_r	real	4	pix/(mag/arcsec^2)	FIT_PARAM	Gradient in row centroid with isophote
isoRowcGrad_i	real	4	pix/(mag/arcsec^2)	FIT_PARAM	Gradient in row centroid with isophote
isoRowcGrad_z	real	4	pix/(mag/arcsec^2)	FIT_PARAM	Gradient in row centroid with isophote
isoColc_u	real	4	pix	FIT_PARAM	Isophotal column centroid
isoColc_g	real	4	pix	FIT_PARAM	Isophotal column centroid
isoColc_r	real	4	pix	FIT_PARAM	Isophotal column centroid
isoColc_i	real	4	pix	FIT_PARAM	Isophotal column centroid
isoColc_z	real	4	pix	FIT_PARAM	Isophotal column centroid
isoColcErr_u	real	4	pix	FIT_PARAM	Isophotal column centroid error. PLACEHOLDER, set to -9999 or -1000
isoColcErr_g	real	4	pix	FIT_PARAM	Isophotal column centroid error. PLACEHOLDER, set to -9999 or -1000
isoColcErr_r	real	4	pix	FIT_PARAM	Isophotal column centroid error. PLACEHOLDER, set to -9999 or -1000
isoColcErr_i	real	4	pix	FIT_PARAM	Isophotal column centroid error. PLACEHOLDER, set to -9999 or -1000
isoColcErr_z	real	4	pix	FIT_PARAM	Isophotal column centroid error. PLACEHOLDER, set to -9999 or -1000
isoColcGrad_u	real	4	pix/(mag/arcsec^2)	FIT_PARAM	Gradient in column centroid with isophote
isoColcGrad_g	real	4	pix/(mag/arcsec^2)	FIT_PARAM	Gradient in column centroid with isophote
isoColcGrad_r	real	4	pix/(mag/arcsec^2)	FIT_PARAM	Gradient in column centroid with isophote
isoColcGrad_i	real	4	pix/(mag/arcsec^2)	FIT_PARAM	Gradient in column centroid with isophote
isoColcGrad_z	real	4	pix/(mag/arcsec^2)	FIT_PARAM	Gradient in column centroid with isophote
isoA_u	real	4	pix	EXTENSION_RAD	Isophotal major axis
isoA_g	real	4	pix	EXTENSION_RAD	Isophotal major axis
isoA_r	real	4	pix	EXTENSION_RAD	Isophotal major axis
isoA_i	real	4	pix	EXTENSION_RAD	Isophotal major axis
isoA_z	real	4	pix	EXTENSION_RAD	Isophotal major axis
isoAErr_u	real	4	pix	EXTENSION_RAD ERROR	Isophotal major axis error. PLACEHOLDER, set to -9999 or -1000
isoAErr_g	real	4	pix	EXTENSION_RAD ERROR	Isophotal major axis error. PLACEHOLDER, set to -9999 or -1000
isoAErr_r	real	4	pix	EXTENSION_RAD ERROR	Isophotal major axis error. PLACEHOLDER, set to -9999 or -1000
isoAErr_i	real	4	pix	EXTENSION_RAD ERROR	Isophotal major axis error. PLACEHOLDER, set to -9999 or -1000
isoAErr_z	real	4	pix	EXTENSION_RAD ERROR	Isophotal major axis error. PLACEHOLDER, set to -9999 or -1000
isoB_u	real	4	pix	EXTENSION_SMIN	Isophotal minor axis
isoB_g	real	4	pix	EXTENSION_SMIN	Isophotal minor axis
isoB_r	real	4	pix	EXTENSION_SMIN	Isophotal minor axis
isoB_i	real	4	pix	EXTENSION_SMIN	Isophotal minor axis
isoB_z	real	4	pix	EXTENSION_SMIN	Isophotal minor axis
isoBErr_u	real	4	pix	EXTENSION_SMIN ERROR	Isophotal minor axis error. PLACEHOLDER, set to -9999 or -1000
isoBErr_g	real	4	pix	EXTENSION_SMIN ERROR	Isophotal minor axis error. PLACEHOLDER, set to -9999 or -1000
isoBErr_r	real	4	pix	EXTENSION_SMIN ERROR	Isophotal minor axis error. PLACEHOLDER, set to -9999 or -1000
isoBErr_i	real	4	pix	EXTENSION_SMIN ERROR	Isophotal minor axis error. PLACEHOLDER, set to -9999 or -1000
isoBErr_z	real	4	pix	EXTENSION_SMIN ERROR	Isophotal minor axis error. PLACEHOLDER, set to -9999 or -1000
isoAGrad_u	real	4	arcsec/(mag/arcsec^2)	FIT_PARAM	Gradient in major axis at the isophote
isoAGrad_g	real	4	arcsec/(mag/arcsec^2)	FIT_PARAM	Gradient in major axis at the isophote
isoAGrad_r	real	4	arcsec/(mag/arcsec^2)	FIT_PARAM	Gradient in major axis at the isophote
isoAGrad_i	real	4	arcsec/(mag/arcsec^2)	FIT_PARAM	Gradient in major axis at the isophote
isoAGrad_z	real	4	arcsec/(mag/arcsec^2)	FIT_PARAM	Gradient in major axis at the isophote
isoBGrad_u	real	4	arcsec/(mag/arcsec^2)	FIT_PARAM	Gradient in minor axis at the isophote
isoBGrad_g	real	4	arcsec/(mag/arcsec^2)	FIT_PARAM	Gradient in minor axis at the isophote
isoBGrad_r	real	4	arcsec/(mag/arcsec^2)	FIT_PARAM	Gradient in minor axis at the isophote
isoBGrad_i	real	4	arcsec/(mag/arcsec^2)	FIT_PARAM	Gradient in minor axis at the isophote
isoBGrad_z	real	4	arcsec/(mag/arcsec^2)	FIT_PARAM	Gradient in minor axis at the isophote
isoPhi_u	real	4	deg	FIT_PARAM	Isophotal position angle (+N thru E)
isoPhi_g	real	4	deg	FIT_PARAM	Isophotal position angle (+N thru E)
isoPhi_r	real	4	deg	FIT_PARAM	Isophotal position angle (+N thru E)
isoPhi_i	real	4	deg	FIT_PARAM	Isophotal position angle (+N thru E)
isoPhi_z	real	4	deg	FIT_PARAM	Isophotal position angle (+N thru E)
isoPhiErr_u	real	4	deg	FIT_PARAM	Isophotal position angle error. PLACEHOLDER, set to -9999 or -1000
isoPhiErr_g	real	4	deg	FIT_PARAM	Isophotal position angle error. PLACEHOLDER, set to -9999 or -1000
isoPhiErr_r	real	4	deg	FIT_PARAM	Isophotal position angle error. PLACEHOLDER, set to -9999 or -1000
isoPhiErr_i	real	4	deg	FIT_PARAM	Isophotal position angle error. PLACEHOLDER, set to -9999 or -1000
isoPhiErr_z	real	4	deg	FIT_PARAM	Isophotal position angle error. PLACEHOLDER, set to -9999 or -1000
isoPhiGrad_u	real	4	deg/(mag/arcsec^2)	FIT_PARAM	Gradient in positional angle with isophote
isoPhiGrad_g	real	4	deg/(mag/arcsec^2)	FIT_PARAM	Gradient in positional angle with isophote
isoPhiGrad_r	real	4	deg/(mag/arcsec^2)	FIT_PARAM	Gradient in positional angle with isophote
isoPhiGrad_i	real	4	deg/(mag/arcsec^2)	FIT_PARAM	Gradient in positional angle with isophote
isoPhiGrad_z	real	4	deg/(mag/arcsec^2)	FIT_PARAM	Gradient in positional angle with isophote
deVRad_u	real	4	arcsec	EXTENSION_RAD FIT_PARAM	DeVaucouleurs fit scale radius
deVRad_g	real	4	arcsec	EXTENSION_RAD FIT_PARAM	DeVaucouleurs fit scale radius
deVRad_r	real	4	arcsec	EXTENSION_RAD FIT_PARAM	DeVaucouleurs fit scale radius
deVRad_i	real	4	arcsec	EXTENSION_RAD FIT_PARAM	DeVaucouleurs fit scale radius
deVRad_z	real	4	arcsec	EXTENSION_RAD FIT_PARAM	DeVaucouleurs fit scale radius
deVRadErr_u	real	4	arcsec	EXTENSION_RAD ERROR	DeVaucouleurs fit scale radius error
deVRadErr_g	real	4	arcsec	EXTENSION_RAD ERROR	DeVaucouleurs fit scale radius error
deVRadErr_r	real	4	arcsec	EXTENSION_RAD ERROR	DeVaucouleurs fit scale radius error
deVRadErr_i	real	4	arcsec	EXTENSION_RAD ERROR	DeVaucouleurs fit scale radius error
deVRadErr_z	real	4	arcsec	EXTENSION_RAD ERROR	DeVaucouleurs fit scale radius error
deVAB_u	real	4		FIT_PARAM	DeVaucouleurs fit a/b
deVAB_g	real	4		FIT_PARAM	DeVaucouleurs fit a/b
deVAB_r	real	4		FIT_PARAM	DeVaucouleurs fit a/b
deVAB_i	real	4		FIT_PARAM	DeVaucouleurs fit a/b
deVAB_z	real	4		FIT_PARAM	DeVaucouleurs fit a/b
deVABErr_u	real	4		FIT_PARAM ERROR	DeVaucouleurs fit a/b error
deVABErr_g	real	4		FIT_PARAM ERROR	DeVaucouleurs fit a/b error
deVABErr_r	real	4		FIT_PARAM ERROR	DeVaucouleurs fit a/b error
deVABErr_i	real	4		FIT_PARAM ERROR	DeVaucouleurs fit a/b error
deVABErr_z	real	4		FIT_PARAM ERROR	DeVaucouleurs fit a/b error
deVPhi_u	real	4	deg	FIT_PARAM POS_ANG_GENERAL	DeVaucouleurs fit position angle (+N thru E)
deVPhi_g	real	4	deg	FIT_PARAM POS_ANG_GENERAL	DeVaucouleurs fit position angle (+N thru E)
deVPhi_r	real	4	deg	FIT_PARAM POS_ANG_GENERAL	DeVaucouleurs fit position angle (+N thru E)
deVPhi_i	real	4	deg	FIT_PARAM POS_ANG_GENERAL	DeVaucouleurs fit position angle (+N thru E)
deVPhi_z	real	4	deg	FIT_PARAM POS_ANG_GENERAL	DeVaucouleurs fit position angle (+N thru E)
deVPhiErr_u	real	4	deg	FIT_PARAM POS_ANG_GENERAL ERROR	DeVaucouleurs fit position angle error. PLACEHOLDER, set to -9999 or -1000
deVPhiErr_g	real	4	deg	FIT_PARAM POS_ANG_GENERAL ERROR	DeVaucouleurs fit position angle error. PLACEHOLDER, set to -9999 or -1000
deVPhiErr_r	real	4	deg	FIT_PARAM POS_ANG_GENERAL ERROR	DeVaucouleurs fit position angle error. PLACEHOLDER, set to -9999 or -1000
deVPhiErr_i	real	4	deg	FIT_PARAM POS_ANG_GENERAL ERROR	DeVaucouleurs fit position angle error. PLACEHOLDER, set to -9999 or -1000
deVPhiErr_z	real	4	deg	FIT_PARAM POS_ANG_GENERAL ERROR	DeVaucouleurs fit position angle error. PLACEHOLDER, set to -9999 or -1000
deVMag_u	real	4	mag	PHOT_SDSS_U FIT_PARAM	DeVaucouleurs magnitude fit
deVMag_g	real	4	mag	PHOT_SDSS_G FIT_PARAM	DeVaucouleurs magnitude fit
deVMag_r	real	4	mag	PHOT_SDSS_R FIT_PARAM	DeVaucouleurs magnitude fit
deVMag_i	real	4	mag	PHOT_SDSS_I FIT_PARAM	DeVaucouleurs magnitude fit
deVMag_z	real	4	mag	PHOT_SDSS_Z FIT_PARAM	DeVaucouleurs magnitude fit
deVMagErr_u	real	4	mag	PHOT_SDSS_U ERROR FIT_PARAM	DeVaucouleurs magnitude fit error
deVMagErr_g	real	4	mag	PHOT_SDSS_G ERROR FIT_PARAM	DeVaucouleurs magnitude fit error
deVMagErr_r	real	4	mag	PHOT_SDSS_R ERROR FIT_PARAM	DeVaucouleurs magnitude fit error
deVMagErr_i	real	4	mag	PHOT_SDSS_I ERROR FIT_PARAM	DeVaucouleurs magnitude fit error
deVMagErr_z	real	4	mag	PHOT_SDSS_Z ERROR FIT_PARAM	DeVaucouleurs magnitude fit error
expRad_u	real	4	arcsec	EXTENSION_RAD FIT_PARAM	Exponetial fit scale radius
expRad_g	real	4	arcsec	EXTENSION_RAD FIT_PARAM	Exponetial fit scale radius
expRad_r	real	4	arcsec	EXTENSION_RAD FIT_PARAM	Exponetial fit scale radius
expRad_i	real	4	arcsec	EXTENSION_RAD FIT_PARAM	Exponetial fit scale radius
expRad_z	real	4	arcsec	EXTENSION_RAD FIT_PARAM	Exponetial fit scale radius
expRadErr_u	real	4	arcsec	EXTENSION_RAD ERROR	Exponetial fit scale radius error
expRadErr_g	real	4	arcsec	EXTENSION_RAD ERROR	Exponetial fit scale radius error
expRadErr_r	real	4	arcsec	EXTENSION_RAD ERROR	Exponetial fit scale radius error
expRadErr_i	real	4	arcsec	EXTENSION_RAD ERROR	Exponetial fit scale radius error
expRadErr_z	real	4	arcsec	EXTENSION_RAD ERROR	Exponetial fit scale radius error
expAB_u	real	4		FIT_PARAM	Exponential fit a/b
expAB_g	real	4		FIT_PARAM	Exponential fit a/b
expAB_r	real	4		FIT_PARAM	Exponential fit a/b
expAB_i	real	4		FIT_PARAM	Exponential fit a/b
expAB_z	real	4		FIT_PARAM	Exponential fit a/b
expABErr_u	real	4		FIT_PARAM	Exponential fit a/b
expABErr_g	real	4		FIT_PARAM	Exponential fit a/b
expABErr_r	real	4		FIT_PARAM	Exponential fit a/b
expABErr_i	real	4		FIT_PARAM	Exponential fit a/b
expABErr_z	real	4		FIT_PARAM	Exponential fit a/b
expPhi_u	real	4	deg	FIT_PARAM POS_ANG_GENERAL	Exponential fit position angle (+N thru E)
expPhi_g	real	4	deg	FIT_PARAM POS_ANG_GENERAL	Exponential fit position angle (+N thru E)
expPhi_r	real	4	deg	FIT_PARAM POS_ANG_GENERAL	Exponential fit position angle (+N thru E)
expPhi_i	real	4	deg	FIT_PARAM POS_ANG_GENERAL	Exponential fit position angle (+N thru E)
expPhi_z	real	4	deg	FIT_PARAM POS_ANG_GENERAL	Exponential fit position angle (+N thru E)
expPhiErr_u	real	4	deg	FIT_PARAM POS_ANG_GENERAL ERROR	Exponential fit position angle error. PLACEHOLDER, set to -9999 or -1000
expPhiErr_g	real	4	deg	FIT_PARAM POS_ANG_GENERAL ERROR	Exponential fit position angle error. PLACEHOLDER, set to -9999 or -1000
expPhiErr_r	real	4	deg	FIT_PARAM POS_ANG_GENERAL ERROR	Exponential fit position angle error. PLACEHOLDER, set to -9999 or -1000
expPhiErr_i	real	4	deg	FIT_PARAM POS_ANG_GENERAL ERROR	Exponential fit position angle error. PLACEHOLDER, set to -9999 or -1000
expPhiErr_z	real	4	deg	FIT_PARAM POS_ANG_GENERAL ERROR	Exponential fit position angle error. PLACEHOLDER, set to -9999 or -1000
expMag_u	real	4	mag	PHOT_SDSS_U	Exponential fit
expMag_g	real	4	mag	PHOT_SDSS_G	Exponential fit
expMag_r	real	4	mag	PHOT_SDSS_R	Exponential fit
expMag_i	real	4	mag	PHOT_SDSS_I	Exponential fit
expMag_z	real	4	mag	PHOT_SDSS_Z	Exponential fit
expMagErr_u	real	4	mag	PHOT_SDSS_U ERROR	Exponential fit error
expMagErr_g	real	4	mag	PHOT_SDSS_G ERROR	Exponential fit error
expMagErr_r	real	4	mag	PHOT_SDSS_R ERROR	Exponential fit error
expMagErr_i	real	4	mag	PHOT_SDSS_I ERROR	Exponential fit error
expMagErr_z	real	4	mag	PHOT_SDSS_Z ERROR	Exponential fit error
modelMag_u	real	4	mag	PHOT_SDSS_U FIT_PARAM	better of DeV/Exp magnitude fit
modelMag_g	real	4	mag	PHOT_SDSS_G FIT_PARAM	better of DeV/Exp magnitude fit
modelMag_r	real	4	mag	PHOT_SDSS_R FIT_PARAM	better of DeV/Exp magnitude fit
modelMag_i	real	4	mag	PHOT_SDSS_I FIT_PARAM	better of DeV/Exp magnitude fit
modelMag_z	real	4	mag	PHOT_SDSS_Z FIT_PARAM	better of DeV/Exp magnitude fit
modelMagErr_u	real	4	mag	PHOT_SDSS_U ERROR	better of DeV/Exp magnitude fit error
modelMagErr_g	real	4	mag	PHOT_SDSS_G ERROR	better of DeV/Exp magnitude fit error
modelMagErr_r	real	4	mag	PHOT_SDSS_R ERROR	better of DeV/Exp magnitude fit error
modelMagErr_i	real	4	mag	PHOT_SDSS_I ERROR	better of DeV/Exp magnitude fit error
modelMagErr_z	real	4	mag	PHOT_SDSS_Z ERROR	better of DeV/Exp magnitude fit error
texture_u	real	4		FIT_PARAM	Texture parameter
texture_g	real	4		FIT_PARAM	Texture parameter
texture_r	real	4		FIT_PARAM	Texture parameter
texture_i	real	4		FIT_PARAM	Texture parameter
texture_z	real	4		FIT_PARAM	Texture parameter
lnLStar_u	real	4		FIT_GOODNESS	Star ln(likelihood)
lnLStar_g	real	4		FIT_GOODNESS	Star ln(likelihood)
lnLStar_r	real	4		FIT_GOODNESS	Star ln(likelihood)
lnLStar_i	real	4		FIT_GOODNESS	Star ln(likelihood)
lnLStar_z	real	4		FIT_GOODNESS	Star ln(likelihood)
lnLExp_u	real	4		FIT_GOODNESS	Exponential disk fit ln(likelihood)
lnLExp_g	real	4		FIT_GOODNESS	Exponential disk fit ln(likelihood)
lnLExp_r	real	4		FIT_GOODNESS	Exponential disk fit ln(likelihood)
lnLExp_i	real	4		FIT_GOODNESS	Exponential disk fit ln(likelihood)
lnLExp_z	real	4		FIT_GOODNESS	Exponential disk fit ln(likelihood)
lnLDeV_u	real	4		FIT_GOODNESS	DeVaucouleurs fit ln(likelihood)
lnLDeV_g	real	4		FIT_GOODNESS	DeVaucouleurs fit ln(likelihood)
lnLDeV_r	real	4		FIT_GOODNESS	DeVaucouleurs fit ln(likelihood)
lnLDeV_i	real	4		FIT_GOODNESS	DeVaucouleurs fit ln(likelihood)
lnLDeV_z	real	4		FIT_GOODNESS	DeVaucouleurs fit ln(likelihood)
fracDeV_u	real	4		PHOT_FLUX_RATIO	Weight of deV component in best composite model
fracDeV_g	real	4		PHOT_FLUX_RATIO	Weight of deV component in best composite model
fracDeV_r	real	4		PHOT_FLUX_RATIO	Weight of deV component in best composite model
fracDeV_i	real	4		PHOT_FLUX_RATIO	Weight of deV component in best composite model
fracDeV_z	real	4		PHOT_FLUX_RATIO	Weight of deV component in best composite model
flags_u	bigint	8		CODE_MISC	Object detection flags per band
flags_g	bigint	8		CODE_MISC	Object detection flags per band
flags_r	bigint	8		CODE_MISC	Object detection flags per band
flags_i	bigint	8		CODE_MISC	Object detection flags per band
flags_z	bigint	8		CODE_MISC	Object detection flags per band
type_u	int	4		CLASS_OBJECT	Object type classification per band
type_g	int	4		CLASS_OBJECT	Object type classification per band
type_r	int	4		CLASS_OBJECT	Object type classification per band
type_i	int	4		CLASS_OBJECT	Object type classification per band
type_z	int	4		CLASS_OBJECT	Object type classification per band
probPSF_u	real	4		STAT_PROBABILITY	Probablity object is a star in each filter.
probPSF_g	real	4		STAT_PROBABILITY	Probablity object is a star in each filter.
probPSF_r	real	4		STAT_PROBABILITY	Probablity object is a star in each filter.
probPSF_i	real	4		STAT_PROBABILITY	Probablity object is a star in each filter.
probPSF_z	real	4		STAT_PROBABILITY	Probablity object is a star in each filter.
status	int	4		CODE_MISC	Status of the object in the survey
ra	float	8	deg	POS_EQ_RA_MAIN	J2000 right ascension (r')
dec	float	8	deg	POS_EQ_DEC_MAIN	J2000 declination (r')
cx	float	8		POS_EQ_CART_X	unit vector for ra+dec
cy	float	8		POS_EQ_CART_Y	unit vector for ra+dec
cz	float	8		POS_EQ_CART_Z	unit vector for ra+dec
raErr	float	8	arcsec	POS_EQ_RA_ERR	Error in RA
decErr	float	8	arcsec	POS_EQ_DEC_ERR	Error in dec
raDecCorr	float	8		CODE_MISC	RA/dec correlation
b	float	8	deg	POS_GAL_LON	Galactic latitude
l	float	8	deg	POS_GAL_LAT	Galactic longitude
offsetRa_u	real	4	arcsec	POS_OFFSET	filter position ra minus final ra (* cos(dec))
offsetRa_g	real	4	arcsec	POS_OFFSET	filter position ra minus final ra (* cos(dec))
offsetRa_r	real	4	arcsec	POS_OFFSET	filter position ra minus final ra (* cos(dec))
offsetRa_i	real	4	arcsec	POS_OFFSET	filter position ra minus final ra (* cos(dec))
offsetRa_z	real	4	arcsec	POS_OFFSET	filter position ra minus final ra (* cos(dec))
offsetDec_u	real	4	arcsec	POS_OFFSET	filter position dec minus final dec
offsetDec_g	real	4	arcsec	POS_OFFSET	filter position dec minus final dec
offsetDec_r	real	4	arcsec	POS_OFFSET	filter position dec minus final dec
offsetDec_i	real	4	arcsec	POS_OFFSET	filter position dec minus final dec
offsetDec_z	real	4	arcsec	POS_OFFSET	filter position dec minus final dec
primTarget	int	4		CODE_MISC	Bit mask of primary target categories the object was selected in.
secTarget	int	4		CODE_MISC	Bit mask of secondary target categories the object was selected in.
seguePrimTarget	int	4		CODE_MISC	Bit mask of SEGUE primary target categories the object was selected in.
segueSecTarget	int	4		CODE_MISC	Bit mask of SEGUE secondary target categories the object was selected in.
extinction_u	real	4	mag	PHOT_EXTINCTION_GAL	Extinction in each filter
extinction_g	real	4	mag	PHOT_EXTINCTION_GAL	Extinction in each filter
extinction_r	real	4	mag	PHOT_EXTINCTION_GAL	Extinction in each filter
extinction_i	real	4	mag	PHOT_EXTINCTION_GAL	Extinction in each filter
extinction_z	real	4	mag	PHOT_EXTINCTION_GAL	Extinction in each filter
priority	int	4		CODE_MISC	Priority bits
rho	real	4	mag	EXTENSION_RAD	Log size for surface brightness: 5xlog(Petro radius in i band)
nProf_u	int	4		NUMBER	Number of Profile Bins
nProf_g	int	4		NUMBER	Number of Profile Bins
nProf_r	int	4		NUMBER	Number of Profile Bins
nProf_i	int	4		NUMBER	Number of Profile Bins
nProf_z	int	4		NUMBER	Number of Profile Bins
loadVersion	int	4		ID_VERSION	Load Version
htmID	bigint	8		CODE_HTM	20-deep hierarchical trangular mesh ID of this object
fieldID	bigint	8		ID_FIELD	Link to the field this object is in
parentID	bigint	8		ID_PARENT	Pointer to parent (if object deblended) or BRIGHT detection (if object has one), else 0
specObjID	bigint	8		ID_CATALOG	Pointer to the spectrum of object, if exists, else 0
u	real	4	mag	PHOT_SDSS_U FIT_PARAM	Shorthand alias for modelMag
g	real	4	mag	PHOT_SDSS_G FIT_PARAM	Shorthand alias for modelMag
r	real	4	mag	PHOT_SDSS_R FIT_PARAM	Shorthand alias for modelMag
i	real	4	mag	PHOT_SDSS_I FIT_PARAM	Shorthand alias for modelMag
z	real	4	mag	PHOT_SDSS_Z FIT_PARAM	Shorthand alias for modelMag
err_u	real	4	mag	PHOT_SDSS_U ERROR	Error in modelMag alias
err_g	real	4	mag	PHOT_SDSS_G ERROR	Error in modelMag alias
err_r	real	4	mag	PHOT_SDSS_R ERROR	Error in modelMag alias
err_i	real	4	mag	PHOT_SDSS_I ERROR	Error in modelMag alias
err_z	real	4	mag	PHOT_SDSS_Z ERROR	Error in modelMag alias
dered_u	real	4	mag	PHOT_SDSS_U	Simplified mag, corrected for extinction: modelMag-extinction
dered_g	real	4	mag	PHOT_SDSS_G	Simplified mag, corrected for extinction: modelMag-extinction
dered_r	real	4	mag	PHOT_SDSS_R	Simplified mag, corrected for extinction: modelMag-extinction
dered_i	real	4	mag	PHOT_SDSS_I	Simplified mag, corrected for extinction: modelMag-extinction
dered_z	real	4	mag	PHOT_SDSS_Z	Simplified mag, corrected for extinction: modelMag-extinction

Getting FITS files from the DAS (Data Archive Server)

After you press Submit, the page that displays the results of the query will include the appropriate button(s) to upload the results of the query to the DAS to retrieve the corresponding raw FITS file data. If you only request imaging data and include the columns run, rerun, camcol, and field (these are included in the minimal and typical column lists), then the Upload list of fields to DAS button will be displayed on the results page (below the query results table). If you request spectroscopic data, and include the columns plate, mjd and fiberid in the output (included in the minimal and typical column lists), then the Upload list of spectra to DAS button will be displayed on the results page so you can retrieve FITS files for the spectra.

Position Constraints

Which positional constraints (if any) do you want applied to your query?

Rectangular Search

Valid formats (J2000):

• raMin/raMax in decimal degrees (D.ddddd) or in sexagesimal hours, minutes, seconds (HH:MM:SS.ss or HH MM SS.ss)
• decMin/decMax in decimal degrees (+/-DD.ddddd) or in sexagesimal degrees, arcminutes, arcseconds (+/-DD:MM:SS.s or +/-DD MM SS.s)

Cone Search

For a given RA and DEC, the cone search returns all objects within the search radius that meet your search constraints.

Valid formats (J2000):

• raCenter in decimal degrees (D.ddddd) or in sexagesimal hours, minutes, seconds (HH:MM:SS.ss or HH MM SS.ss)
• decCenter in decimal degrees (+/-DD.ddddd) or in sexagesimal degrees, arcminutes, arcseconds (+/-DD:MM:SS.s or +/-DD MM SS.s)
• radius in decimal arcminutes (M.mmm)

Proximity Search

Do you want to search the proximities for a list of ra's and dec's?

For a given RA and DEC, the proximity search returns the closest object within the search radius that meets your search constraints.

The list can be either entered directly into the webform box or uploaded as a file from your machine. In either case, it must be a comma or space separated list containing fields for ra, dec, and (optionally) sep (radius). The order of these fields in the list is unimportant, but the first line of the list must contain the order of the fields in comma- or space-separated format; e.g.:

ra, dec, sep

Valid formats (J2000):

• ra in decimal degrees (D.ddddd) or in sexagesimal hours, minutes, seconds (HH:MM:SS.ss or HH MM SS.ss)
• dec in decimal degrees (+/-DD.ddddd) or in sexagesimal degrees, arcminutes, arcseconds (+/-DD:MM:SS.s or +/-DD MM SS.s)
• sep in decimal arcmin (S.ssss...)

No Position Constraint

Spectroscopy Constraints

Which spectroscopic constraints (if any) do you want applied to your query?

Redshift and Confidence

Do you want to search over a given range of redshift and redshift confidence?

Redshifts less than zero are possible (e.g., for stars), as are redshifts greater than 5 (some QSOs, but also objects with poorly measured redshifts).

Valid ranges for redshift confidence are from 0 (poor) to 1 (excellent). Setting a minimum redshift confidence of 0.95 is typical for selecting good galaxy and/or QSO redshift samples.

Spectral Classification

What type of objects (as automatically classified by their spectra) do you want returned from your query?

The options are:

name	value	description
UNKNOWN	0	Spectrum not classifiable (zConf < 0.25).
STAR	1	Spectrum of a star.
GALAXY	2	Spectrum of a galaxy.
QSO	3	Spectrum of a quasi-stellar object.
HIZ_QSO	4	Spectrum of a high-redshift quasar (z>2.3), whose redshift is confirmed by a Ly-alpha estimator (see "Spectroscopic Redshift and Type Determination" section in Algorithms).
SKY	5	Spectrum of blank sky.
STAR_LATE	6	Star dominated bt molecular bands M or later.
GAL_EM	7	Emission line galaxy (placeholder).

Primtarget

Which type of objects do you want returned from your query? (Here, the object type is from the spectroscopic target selection algorithms, where the objects have been classified photometrically or by matchup with other catalogs.) (primary target categories)

The primTarget field is a bit mask specifying which primary target categories the object was selected in. If you select one or more bits in the At least one of these bits ON menu, then the bit-wise OR of each of those bits is computed and it must be greater than 0. If you select one or more of the bits in the All of these bits OFF menu, then the bit-wise AND of all those bits is computed and it must be equal to 0.

The bits are defined as:

name	value	description
TARGET_QSO_HIZ	0x00000001
TARGET_QSO_CAP	0x00000002
TARGET_QSO_SKIRT	0x00000004
TARGET_QSO_FIRST_CAP	0x00000008
TARGET_QSO_FIRST_SKIRT	0x00000010
TARGET_GALAXY_RED	0x00000020
TARGET_GALAXY	0x00000040
TARGET_GALAXY_BIG	0x00000080
TARGET_GALAXY_BRIGHT_CORE	0x00000100
TARGET_ROSAT_A	0x00000200
TARGET_ROSAT_B	0x00000400
TARGET_ROSAT_C	0x00000800
TARGET_ROSAT_D	0x00001000
TARGET_STAR_BHB	0x00002000
TARGET_STAR_CARBON	0x00004000
TARGET_STAR_BROWN_DWARF	0x00008000
TARGET_STAR_SUB_DWARF	0x00010000
TARGET_STAR_CATY_VAR	0x00020000
TARGET_STAR_RED_DWARF	0x00040000
TARGET_STAR_WHITE_DWARF	0x00080000
TARGET_SERENDIP_BLUE	0x00100000
TARGET_SERENDIP_FIRST	0x00200000
TARGET_SERENDIP_RED	0x00400000
TARGET_SERENDIP_DISTANT	0x00800000
TARGET_SERENDIP_MANUAL	0x01000000
TARGET_QSO_FAINT	0x02000000
TARGET_GALAXY_RED_II	0x04000000
TARGET_ROSAT_E	0x08000000
TARGET_STAR_PN	0x10000000
TARGET_QSO_REJECT	0x20000000

Sectarget

Which type of objects do you want returned from your query? (Here, the object type is from the spectroscopic target selection algorithms, where the objects have been classified photometrically or by matchup with other catalogs.) (secondary target categories)

The secTarget field is a bit mask specifying which primary target categories the object was selected in. If you select one or more bits in the At least one of these bits ON menu, then the bit-wise OR of each of those bits is computed and it must be greater than 0. If you select one or more of the bits in the All of these bits OFF menu, then the bit-wise AND of all those bits is computed and it must be equal to 0.

The bits are defined as:

name	value	description
TARGET_LIGHT_TRAP	0x00000001
TARGET_REDDEN_STD	0x00000002
TARGET_TEST_TARGET	0x00000004
TARGET_QA	0x00000008
TARGET_SKY	0x00000010
TARGET_SPECTROPHOTO_STD	0x00000020
TARGET_GUIDE_STAR	0x00000040
TARGET_BUNDLE_HOLE	0x00000080
TARGET_QUALITY_HOLE	0x00000100
TARGET_HOT_STD	0x00000200

Imaging Constraints

Which imaging constraints (if any) do you want applied to your query?

Sky Version

Magnitude Type

1. Petrosian magnitudes and colors,
2. PSF magnitudes and colors, or
3. model magnitudes and colors.

Magnitudes

Do you want to search over given range in u, g, r, i, and/or z magnitudes?

Colors

Do you want to search over given range in u-g, g-r, r-i, and/or i-z colors?

Object Type

Which type of objects do you want returned from your query? (Here, the object type is the classification from the photometric pipeline, and are based upon how well an object matches a stellar, de Vaucouleurs, or exponential profile.)

The object types are:

• Extended Sources (e.g., galaxies)
• Point Sources (e.g., stars, QSOs)
• Sky Fibers (sky)
• Unknown (?)

Photometric Quality

You can restrict the search to objects in fields that have minimum photometric quality as determined by the fieldQall column in the RunQA table. The possible values of fieldQall are between 0 and 3 (0=BAD, 1=ACCEPTABLE, 2=GOOD, 3=EXCELLENT). Independently of this constraint, you may also opt to return the fieldQall value from the RunQA table for each object in your search, by checking the "Return value" checkbox. If no value is entered in the "min QA" box, no quality constraint will be applied but the fieldQall will still be returned with your query results.

Photo Flags

Which set of object flags (from photo) do wish to query on?

These flags are discussed in more detail in the document "Understanding the SDSS Image Data Processing Flags".

Photo flags can be set (ON) or (OFF). If you select one or more flags in the At least one of these flags ON menu, then the bit-wise OR of each of those flag bits is computed and it must be greater than 0. If you select one or more of the flags in the All of these flags OFF menu, then the bit-wise AND of all those flag bits is computed and it must be equal to 0.

The object photo flags are:

name	value	description
CANONICAL_CENTER	0x0000000000000001	Measurements used the center in r*, rather than the locally determined center.
BRIGHT	0x0000000000000002	Object detected in first, bright object-finding; generally r*<17.5
EDGE	0x0000000000000004	Object is too close to edge of frame
BLENDED	0x0000000000000008	Object had multiple peaks detected within it; was thus a candidate to be a deblending parent.
CHILD	0x0000000000000010	Object is the product of an attempt to deblend a BLENDED object.
PEAKCENTER	0x0000000000000020	Given center is position of peak pixel, rather than based on the maximum-likelihood estimator.
NODEBLEND	0x0000000000000040	No deblending was attempted on this object, even though it is BLENDED.
NOPROFILE	0x0000000000000080	Object was too small or too close to the edge to estimate a radial profile.
NOPETRO	0x0000000000000100	No valid Petrosian radius was found for this object.
MANYPETRO	0x0000000000000200	More than one Petrosian radius was found.
NOPETRO_BIG	0x0000000000000400	Petrosian radius is beyond the last point in the radial profile.
DEBLEND_TOO_MANY_PEAKS	0x0000000000000800	There were more than 25 peaks in this object to deblend; deblended brightest 25.
COSMIC_RAY	0x0000000000001000	Contains a pixel interpreted to be part of a cosmic ray.
MANYR50	0x0000000000002000	Object has more than one 50% light radius.
MANYR90	0x0000000000004000	Object has more than one 90% light radius.
BAD_RADIAL	0x0000000000008000	Some of the points in the given radial profile have negative signal-to-noise ratio. Not a significant parameter.
INCOMPLETE_PROFILE	0x0000000000010000	Petrosian radius intersects the edge of the frame.
INTERP	0x0000000000020000	Object contains one or more pixels whose values were determined by interpolation.
SATURATED	0x0000000000040000	Object contains one or more saturated pixels
NOTCHECKED	0x0000000000080000	There are pixels in the object which were not checked to see if they included a local peak, such as cores of saturated stars.
SUBTRACTED	0x0000000000100000	This BRIGHT object had its wings subtracted from the frame
NOSTOKES	0x0000000000200000	Object has no measured Stokes params
BADSKY	0x0000000000400000	The sky level is so bad that the highest pixel in the object is very negative; far more so than a mere non-detection. No further analysis is attempted.
PETROFAINT	0x0000000000800000	At least one possible Petrosian radius was rejected as the surface brightness at r_P was too low. If NOPETRO is not set, a different, acceptable Petrosian radius was found.
TOO_LARGE	0x0000000001000000	The object is too large for us to measure its profile (it extends beyond a radius of approximately 260), or at least one child is larger than half a frame.
DEBLENDED_AS_PSF	0x0000000002000000	Deblender treated obj as PSF
DEBLEND_PRUNED	0x0000000004000000	At least one child was removed because its image was too similar to a supposedly different child.
ELLIPFAINT	0x0000000008000000	Object center is fainter than the isophote whose shape is desired, so the isophote properties are not measured. Also flagged if profile is incomplete.
BINNED1	0x0000000010000000	Object was detected in 1x1 binned image
BINNED2	0x0000000020000000	Object was detected in 2x2 binned image, after unbinned detections are replaced by background.
BINNED4	0x0000000040000000	Object was detected in 4x4 binned image
MOVED	0x0000000080000000	The deblender identified this object as possibly moving.
DEBLENDED_AS_MOVING	0x0000000100000000	A MOVED object that the deblender treated as moving.
NODEBLEND_MOVING	0x0000000200000000	A MOVED object that the deblender did not treat as moving.
TOO_FEW_DETECTIONS	0x0000000400000000	A child of this object was not detected in enough bands to reliably deblend as moving.
BAD_MOVING_FIT	0x0000000800000000	Moving fit too poor to be believable.
STATIONARY	0x0000001000000000	This object was consistent with being stationary.
PEAKS_TOO_CLOSE	0x0000002000000000	At least some peaks within this object were too close to be deblended, thus they were merged into a single peak.
MEDIAN_CENTER	0x0000004000000000	Center given is of median-smoothed image.
LOCAL_EDGE	0x0000008000000000	Center in at least one band is too close to an edge.
BAD_COUNTS_ERROR	0x0000010000000000	An object containing interpolated pixels had too few good pixels to form a reliable estimate of its error; the quoted error may be underestimated.
BAD_MOVING_FIT_CHILD	0x0000020000000000	A possible moving child's velocity fit was too poor, so it was discarded and the parent was not deblended as moving.
DEBLEND_UNASSIGNED_FLUX	0x0000040000000000	After deblending, a significant fraction of flux was not assigned to any children.
SATUR_CENTER	0x0000080000000000	Object center is close to at least one saturated pixel.
INTERP_CENTER	0x0000100000000000	Object center is close to at least one interpolated pixel.
DEBLENDED_AT_EDGE	0x0000200000000000	An object close enough to the edge of the frame normally not deblended, is deblended anyway. Only set for objects large enough to be EDGE in all fields/strips.
DEBLEND_NOPEAK	0x0000400000000000	There was no detected peak within this child in at least one band.
PSF_FLUX_INTERP	0x0000800000000000	Greater than 20% of the PSF flux is from interpolated pixels.
TOO_FEW_GOOD_DETECTIONS	0x0001000000000000	A child of this object had too few good detections to be deblended as moving.
CENTER_OFF_AIMAGE	0x0002000000000000	At least one peak's center lay off of the atlas image. This can happen when the object is deblended as moving, or if the astrometry is bad.
DEBLEND_DEGENERATE	0x0004000000000000	Two or more candidate children were essentially identical; one one was retained.
BRIGHTEST_GALAXY_CHILD	0x0008000000000000	This child is the brightest family member (in this band) that is classified as a galaxy.
CANONICAL_BAND	0x0010000000000000	This is the 'canonical' band; r unless the object is undetected in the r filter.
AMOMENT_FAINT	0x0020000000000000	Object was too faint to measure weighted moments such as mE1_g; unweighted values are reported.
AMOMENT_SHIFT	0x0040000000000000	Centroid shift too large when measuring adaptive moments. Row/Column shifts are reported in mE1, mE2.
AMOMENT_MAXITER	0x0080000000000000	Maximum number of iterations exceeded measuring e.g. mE2_g; unweighted values are reported.
MAYBE_CR	0x0100000000000000	There is reasonable suspicion that this object is actually a cosmic ray.
MAYBE_EGHOST	0x0200000000000000	There is reasonable suspicion that this object is actually a ghost produced by the CCD electronics.
NOTCHECKED_CENTER	0x0400000000000000	The center of this object lies in a region that was not searched for objects.
OBJECT2_HAS_SATUR_DN	0x0800000000000000	The electrons in this saturated object's bleed trails have been included in its estimated flux.
OBJECT2_DEBLEND_PEEPHOLE	0x1000000000000000	Deblend was modified by the deblender's peephole optimiser.
GROWN_MERGED	0x2000000000000000	Growing led to a merger
HAS_CENTER	0x4000000000000000	Object has a canonical center
RESERVED	0x8000000000000000	Not used

Ani Thakar
Last Modified: Mar 10, 2004