SuperCOSMOS ivo://wfau.roe.ac.uk/ssa-dsa WFAU, Institute for Astronomy, University of Edinburgh WFAU, Institute for Astronomy, University of Edinburgh http://wfaudata.roe.ac.uk/wfau.gif 2009-11-17 Version 1 Mark Holliman msh@roe.ac.uk Digitised photographic optical all-sky photometric astrometric survey The SuperCOSMOS data held in the SSA primarily originate from scans of Palomar and UK Schmidt blue, red and near-IR southern sky surveys. The ESO Schmidt R (dec < -17.5) and Palomar POSS-I E (dec > -17.5) surveys have also been scanned and provide a 1st epoch red measurement. Further details on the surveys, the scanning process and the raw parameters extracted can be found on the further information link. The SSA is housed in a relational database running on Microsoft SQL Server 2000. Data are stored in tables which are inter-linked via reference ID numbers. In addition to the astronomical object catalogues these tables also contain information on the plates that were scanned, survey field centres and calibration coefficients. Most user science queries will only need to access the SOURCE table or to a lesser extent the DETECTION table. http://surveys.roe.ac.uk/ssa Catalog Research service-for ivo://wfau.roe.ac.uk/ssa-dsa/ceaApplication Detection table: cone search of detections from all plate measurements in all bands http://wfaudata.roe.ac.uk/ssa-dsa/DirectCone?DSACAT=SSA&DSATAB=Detection& 1.500000 2000000 false 96.0 5.0 0.01 Source table: cone search of single band merged source catalog http://wfaudata.roe.ac.uk/ssa-dsa/DirectCone?DSACAT=SSA&DSATAB=Source& 1.500000 2000000 false 96.0 5.0 0.01 Access to two applications: general ADQL query, and asynchronous cone-search where relevant/enabled. http://wfaudata.roe.ac.uk/ssa-dsa/services/CommonExecutionConnectorService ivo://wfau.roe.ac.uk/ssa-dsa/ceaApplication http://wfaudata.roe.ac.uk/ssa-dsa/VOSI/capabilities GET application/xml http://wfaudata.roe.ac.uk/ssa-dsa/VOSI/capabilities GET application/xml http://wfaudata.roe.ac.uk/ssa-dsa/VOSI/availability GET application/xml http://wfaudata.roe.ac.uk/ssa-dsa/VOSI/availability GET application/xml http://wfaudata.roe.ac.uk/ssa-dsa/VOSI/tables GET application/xml http://wfaudata.roe.ac.uk/ssa-dsa/VOSI/applications GET application/xml http://wfaudata.roe.ac.uk/ssa-dsa/delegations GET application/xml Optical FieldSystem systemID The system of survey fields used for the survey meta.id;meta.main int name The name of the system, eg. "ESO/SRC", "POSS-I" etc. meta.note char centrePitch The pitch of the field centres deg obs.param;arith.diff float Survey surveyID Unique survey identifier in the SSA meta.id int surveyName Survey name, eg. SERC-J/EJ meta.id;meta.dataset char systemID The system of survey fields used for the survey meta.note int fieldOfView The nominal field of view of each survey plate deg instr.fov;instr.pixel float decMin Southern (Dec) limit of survey deg pos.eq.dec;arith.diff float decMax Northern (Dec) limit of survey deg pos.eq.dec;arith.diff float numFields No. of fields in the survey phys.atmol.number int telescope UK, ESO or Palomar Oschin Schmidt meta.id;instr.tel char telAperture Telescope aperture metres phys.size;instr.tel float telLong Telescope longitude deg ?? float telLat Telescope latitude degress pos.earth.lat float telHeight Telescope altitude metres pos.earth.altitude;instr.obsty float plateScale Nominal plate scale arcsec/mm instr.scale float colour Survey colour, eg. blue, red or near-infrared instr.bandpass char waveMin Approximate minimum wavelength nanometres instr.filter;em.wl.central int waveMax Approximate maximum wavelength nanometres instr.filter;em.wl.central int waveEff Approximate effective wavelength nanometres em.wl.effective int magLimit Nominal mag limit of survey, eg. 22.5 for Bj phot.mag float epochMin Minimum epoch of observations year time.epoch float epochMax Maximum epoch of observations year time.epoch float epTsys Time system for epoch values in SurveyCatalog meta.note char equinox Equinox for positions in SurveyCatalog year time.equinox float eqTsys Time system for equinox in SurveyCatalog meta.note char surveyRef Literature reference for survey meta.bib char Plate plateID Unique identifier of the plate: surveyID plus field number combo obs.field int surveyID Every plate comes from a survey meta.id int fieldID Unique survey field identifier obs.field int plateNum Plate number assigned by observatory obs.field int dateMeas Measurement date MM-DD-YYYY time.epoch char timeMeas Measurement time (local), eg. 15:33:47 time.epoch char instrument Name of scanning machine meta.id;instr char softVersion Software version, eg. /home/scosdev/v033 meta.software char operator Machine operator's username obs.observer char scanMaterial Photographic medium, eg. Original glass, Copy film, Copy glass meta.note char emulsion Kodak emulsion type, eg. 103a-E, IIIa-J, IV-N instr.plate.emulsion char filterID Filter identifier, eg. OG590, RG715, 2444... meta.code;instr.filter char filterComm Filter type, eg. "Schott glass", "Red plexiglass"... meta.code;instr.filter char raPnt Mean plate centre RA deg pos.eq.ra;meta.main float decPnt Mean plate centre Dec deg pos.eq.dec;meta.main float radecSys Co-ordinate system of raPnt/decPnt, eg. FK4 meta.note char equinox Equinox of raPnt and decPnt year time.equinox float eqTsys Time system of equinox, eg. BESSELIAN meta.note char utDateObs UT date of observation MM-DD-YYYY time.epoch char lstObs Local sidefloat time at start of exposure, eg. 2336 24-hour time.epoch char expLength Exposure time minutes time.duration;obs.exposure float epoch Epoch of observation years time.epoch float domeTemp Dome temp at observation Kelvin meta.note;obs float domePressure Dome pressure at observation mBar meta.note;obs float domeHumid Dome relative humidity at obsevation time meta.note;obs float waveEffect Effective wavelength Angstrom em.wl.effective int tropl Tropospheric lapse rate K/m stat.param float mjd Modified Julian Date at mid exposure Julian days time.epoch float focusNX No. of scan focus points in X instr.param int focusNY No. of scan focus points in Y instr.param int calType Intensity calibration wedge fit type, eg. SPLINE instr.param char stepWdg Intensity calibration step-wedge type, eg. kpno instr.param char nSteps No. of intensity calibration wedge steps instr.param int orientation SuperCOSMOS plate orientation, eg. news instr.param char emulpos SuperCOSMOS emulsion position, eg. up instr.param char sosp SuperCOSMOS start of scan CCD pixel number instr.param int stepsize SuperCOSMOS nominal pixel size microns phys.angSize;instr.pixel float scanlen SuperCOSMOS CCD lane scan length pixels instr.param int aXmin SuperCOSMOS XMIN of measured area microns pos;arith.diff float aXmax SuperCOSMOS XMAX of measured area microns pos;arith.diff float aYmin SuperCOSMOS YMIN of measured area microns pos;arith.diff float aYmax SuperCOSMOS YMAX of measured area microns pos;arith.diff float xPnt Centre of scan area in X microns pos;arith.diff float yPnt Centre of scan area in Y microns pos;arith.diff float areaCut Minimum area of detected object pixels phys.atmol.number int apParam Afloat profile parameter stat.fit.param float dbParam Deblending parameter stat.fit.param float dbAmin Minimum area of parent image that can be deblended pixels stat.fit.param int dbAmax Maximum area of parent image that can be deblended pixels stat.fit.param int dbAcut Minimum area of deblended object detection pixels stat.fit.param int dbLevel No. of rethresholding levels for deblending stat.fit.param int skySquare Blocksize (one side) of sky background pixels stat.fit.param int skyDefn Method of defining sky, eg. "median" meta.note char skyFilter Box filter weights for sky determination stat.fit.param char fThresh Sky filtering parameter stat.fit.param int fSclen Scale size for iterative filter application stat.fit.param int pCut Threshold "percentage cut" for pixel analysis percent stat.fit.param float starCat Name of reference star catalogue used for astrometric fit meta.id;meta.dataset char brightLim Bright mag limit for selected astrometric refstars phot.mag float faintLim Faint limit for selected refstars phot.mag float equinRef Equinox of refstar positions time.equinox float tSysRef Time system of equinox of refstar positions, eg. JULIAN meta.note char maxIter Maximum no. of iterations for non-linear astrometric fit phys.atmol.number int rCritIni Initial matching tolerance for refstars microns stat.fit.param float rCritAbs Absolute object rejection criterion microns stat.fit.param float rCritRel Relative object rejection criterion stat.fit.param float rCritFin Final residual tolerance sigma stat.fit.param float distType Radial distortion term in solution, eg. R/TAN(R) arith.factor char scdGrid Non-linear distortion mask filename meta.id;meta.file char raCol Name of RA column in reference catalogue meta.note char decCol Name of Dec column in reference catalogue meta.note char raPMCol Name of RA proper motion column in reference catalogue meta.note char decPMCol Name of Dec proper motion column in reference catalogue meta.note char plxCol Name of parallax column in reference catalogue meta.note char rvCol Name of radial velocity column in reference catalogue meta.note char magCol Name of magnitude column in reference catalogue meta.note char cEquinox Catalogue equinox year time.equinox float cEqTSys Catalogue equinox time system, eg. JULIAN meta.note char cEpoch Catalogue epoch year time.epoch float cEpTSys Catalogue epoch time system, eg. JULIAN meta.note char starsInit No. of refstars in initial astrometric solution phys.atmol.number int starsSelec No. of refstars initially selected phys.atmol.number int starsUsed No. of refstars in final astrometric solution phys.atmol.number int coeffs1 1st coefficient of astrometric fit for XY to obs. xi,eta stat.fit.param float coeffs2 2nd coefficient of astrometric fit for XY to obs. xi,eta stat.fit.param float coeffs3 3rd coefficient of astrometric fit for XY to obs. xi,eta stat.fit.param float coeffs4 4th coefficient of astrometric fit for XY to obs. xi,eta stat.fit.param float coeffs5 5th coefficient of astrometric fit for XY to obs. xi,eta stat.fit.param float coeffs6 6th coefficient of astrometric fit for XY to obs. xi,eta stat.fit.param float cubicDist Cubic coefficient of radial distortion stat.fit.param float obsRaPnt Observed plate centre RA rad pos.eq.ra;meta.main float obsDecPnt Observed plate centre Dec rad pos.eq.dec;meta.main float shiftPnt Shift of from nominal to fitted plate centre rad pos;arith.diff float areaMin Minimum object area in IAM file pixels phys.angSize int areaMax Maximum object area in IAM file pixels phys.angSize int magMin Minimum instrumental mag in IAM file phot.mag float magMax Maximum instrumental mag in IAM file phot.mag float ellipMin Minimum object ellipticity in IAM file src.ellipticity float ellipMax Maximum object ellipticity in IAM file src.ellipticity float ellipMode Modal object ellipticity in IAM file src.ellipticity float orientMode Modal orientation in IAM file deg pos.posAng float ellipMed Median ellipticity in IAM file src.ellipticity float orientMed Median orientation in IAM file deg pos.posAng float ellipMean Mean object ellipticity in IAM file src.ellipticity float orientMean Mean orientation in IAM file deg pos.posAng float objNum No. of objects detected on plate phys.atmol.number int nParents No. of parent objects detected on plate phys.atmol.number int lane1Count No. of objects in lane 1 of plate scan phys.atmol.number int lane2Count No. of objects in lane 2 of plate scan phys.atmol.number int lane3Count No. of objects in lane 3 of plate scan phys.atmol.number int lane4Count No. of objects in lane 4 of plate scan phys.atmol.number int lane5Count No. of objects in lane 5 of plate scan phys.atmol.number int lane6Count No. of objects in lane 6 of plate scan phys.atmol.number int lane7Count No. of objects in lane 7 of plate scan phys.atmol.number int lane8Count No. of objects in lane 8 of plate scan phys.atmol.number int lane9Count No. of objects in lane 9 of plate scan phys.atmol.number int lane10Count No. of objects in lane 10 of plate scan phys.atmol.number int lane11Count No. of objects in lane 11 of plate scan phys.atmol.number int lane12Count No. of objects in lane 12 of plate scan phys.atmol.number int lane13Count No. of objects in lane 13 of plate scan phys.atmol.number int lane14Count No. of objects in lane 14 of plate scan phys.atmol.number int lane15Count No. of objects in lane 15 of plate scan phys.atmol.number int lane16Count No. of objects in lane 16 of plate scan phys.atmol.number int lane17Count No. of objects in lane 17 of plate scan phys.atmol.number int lane18Count No. of objects in lane 18 of plate scan phys.atmol.number int lane19Count No. of objects in lane 19 of plate scan phys.atmol.number int lane20Count No. of objects in lane 20 of plate scan phys.atmol.number int lane21Count No. of objects in lane 21 of plate scan phys.atmol.number int lane22Count No. of objects in lane 22 of plate scan phys.atmol.number int lane23Count No. of objects in lane 23 of plate scan phys.atmol.number int lane24Count No. of objects in lane 24 of plate scan phys.atmol.number int lane25Count No. of objects in lane 25 of plate scan phys.atmol.number int lane26Count No. of objects in lane 26 of plate scan phys.atmol.number int lane27Count No. of objects in lane 27 of plate scan phys.atmol.number int lane28Count No. of objects in lane 28 of plate scan phys.atmol.number int lane29Count No. of objects in lane 29 of plate scan phys.atmol.number int lane30Count No. of objects in lane 30 of plate scan phys.atmol.number int astResidX Residual of astrometric fit in X arcsec stat.fit.residual float astResidY Residual of astrometric fit in Y arcsec stat.fit.residual float nCalCoeffs No. of photometric calibration coefficients stat.fit.param int CalXK Stationary point in profile cal. curve inst. profile mag stat.fit.param float gradient Gradient of linear portion of profile cal. curve stat.fit.param float getCal1 1st profile calibration polynomial coefficient stat.fit.param float getCal2 2nd profile calibration polynomial coefficient stat.fit.param float getCal3 3rd profile calibration polynomial coefficient stat.fit.param float getCal4 4th profile calibration polynomial coefficient stat.fit.param float getCal5 5th profile calibration polynomial coefficient stat.fit.param float getCal6 6th profile calibration polynomial coefficient stat.fit.param float ffZp Field-to-field zeropoint mag phot.mag;arith.zp float galZp Zeropoint of galaxy instrumental scale mag phot.mag;arith.zp float galGrad Gradient of galaxy instrumental mag scale mags per instrumental mag stat.fit.param float directory Name of directory in flat-file system of source data. meta.id;meta.file char Detection objID Unique object identification number ID_MAIN char surveyID The survey that collected the data meta.id int plateID Plate ID of the plate that this detection came from obs.field int parentID objID of parent object, = objID for parent/undeblended (ie. not child) object meta.id.parent int sourceID objID for corresponding merged record in Source meta.id.assoc int recNum The record number in the original IAM file meta.record int ra Celestial Right Ascension deg POS_EQ_RA_MAIN double dec Celestial Declination deg POS_EQ_DEC_MAIN double htmId Hierarchical Triangular Mesh (20-deep) of centroid pos.eq int cx Cartesian x of unit (ra,dec) vector on celestial sphere float cy Cartesian y of unit (ra,dec) vector on celestial sphere float cz Cartesian z of unit (ra,dec) vector on celestial sphere float xmin Leftmost extent of image on plate microns pos;arith.diff float xmax Rightmost extent of image on plate microns pos;arith.diff float ymin Bottommost extent of image on plate microns pos;arith.diff float ymax Topmost extent of image on plate microns pos;arith.diff float area Area within detection isophote pixels phys.angSize int ipeak Intensity of brightest pixel above sky instrumental units phot.count;em.opt float cosmag Isophotal magnitude instrumental units phot.mag;em.opt float isky Estimate of sky intensity at (xCen, yCen) phot.mag.sb float xCen Intensity-weighted X-centroid of image microns pos;arith.diff float yCen Intensity-weighted Y-centroid of image microns pos;arith.diff float aU Semi-major axis of unweighted fitted ellipse microns phys.angSize;pos.eq.ra float bU Semi-minor axis of unweighted fitted ellipse microns phys.angSize;src float thetaU Position angle (wrt x-axis) of unweighted fitted ellipse deg pos.posAng int aI Semi-major axis of intensity-weighted fitted ellip. microns phys.angSize;pos.eq.ra float bI Semi-minor axis of intensity-weighted fitted ellip. microns phys.angSize;src float thetaI Position angle (wrt x-axis) of intensity-weighted fitted ellipse deg pos.posAng int class Classification flag src.class int pa Celestial position angle (E of N) deg pos.posAng int ap1 Area above 1st afloat profile threshold pixels phys.angSize int ap2 Area above 2nd afloat profile threshold pixels phys.angSize int ap3 Area above 3rd afloat profile threshold pixels phys.angSize int ap4 Area above 4th afloat profile threshold pixels phys.angSize int ap5 Area above 5th afloat profile threshold pixels phys.angSize int ap6 Area above 6th afloat profile threshold pixels phys.angSize int ap7 Area above 7th afloat profile threshold pixels phys.angSize int ap8 Area above 8th afloat profile threshold pixels phys.angSize int blend Deblend flag: -n=parent of n children; +n = nth child of a parent meta.code.multip int quality Bitwise quality flag meta.code.qual int prfStat Profile statistic N(0,1) ?? float prfMag Profile magnitude instrumental units phot.mag;em.opt float gMag Magnitude calculated on assumption object is galaxy mag phot.mag;meta.modelled float sMag Magnitude calculated on assumption object is star mag phot.mag;meta.modelled float SSAfield SSS field number (ESO/SRC system) that this detection falls in. obs.field int seam Seam index: = zero or SSAfield for seamless selection obs.field int JunkDetection objID Unique object identification number from Detection meta.id;meta.main long junkSource Source of junk: 1=satellite track; 2=diffraction spike; 3=bright stellar halo meta.code.class int invSGDens Local inverse star/galaxy density src.density int trackAngle Angle of track or diffraction spike deg pos.posAng float brightObjID The Detection.objID of the artifact-inducing bright star meta.id.assoc int haloRadius Vertical half-major axis of halo ellipse arcsec phys.angSize;pos.eq.ra float postProb Posterior probability of detection being junk stat.probability float Neighbours objID Unique identifier of merged source meta.id;meta.main char neighbourObjID Unique identifier of merged source near neighbour meta.id;meta.dataset char distanceMins The angular separation of the cross-neighbour arcminutes pos.angDistance float ReliableGalaxies objID Unique identifier of merged source meta.id;meta.main char objIDB objID for B band detection merged into this object meta.id.assoc int objIDR1 objID for R1 band detection merged into this object meta.id.assoc int objIDR2 objID for R2 band detection merged into this object meta.id.assoc int objIDI objID for I band detection merged into this object meta.id.assoc int htmId Hierarchical Triangular Mesh (20-deep) of centroid pos.eq int epoch Epoch of position (variance weighted mean epoch of available measures) year time.epoch float ra Mean RA, computed from detections merged in this catalogue deg pos.eq.ra;meta.main float dec Mean Dec, computed from detections merged in this catalogue deg pos.eq.dec;meta.main float sigRA Uncertainty in RA (formal random error not inc. systematic errors) deg meta.code.error float sigDec Uncertainty in Dec (formal random error not inc. systematic errors) deg meta.code.error float cx Cartesian x of unit (ra,dec) vector on celestial sphere float cy Cartesian y of unit (ra,dec) vector on celestial sphere float cz Cartesian z of unit (ra,dec) vector on celestial sphere float muAcosD Proper motion in RA direction mas/yr pos.pm;pos.eq.ra float muD Proper motion in Dec direction mas/yr pos.pm;pos.eq.dec float sigMuAcosD Error on proper motion in RA direction mas/yr meta.code.error float sigMuD Error on proper motion in Dec direction mas/yr meta.code.error float chi2 Chi-squared value of proper motion solution stat.fit.chi2 float Nplates No. of plates used for this proper motion measurement phys.atmol.number int classMagB B band magnitude selected by B image class mag phot.mag;em.opt.B float classMagR1 R1 band magnitude selected by R1 image class mag phot.mag;em.opt.B float classMagR2 R2 band magnitude selected by R2 image class mag phot.mag;em.opt.B float classMagI I band magnitude selected by I image class mag phot.mag;em.opt.B float gCorMagB B band magnitude assuming object is galaxy mag phot.mag;em.opt.B float gCorMagR1 R1 band magnitude assuming object is galaxy mag phot.mag;em.opt.B float gCorMagR2 R2 band magnitude assuming object is galaxy mag phot.mag;em.opt.B float gCorMagI I band magnitude assuming object is galaxy mag phot.mag;em.opt.B float sCorMagB B band magnitude assuming object is star mag phot.mag;em.opt.B float sCorMagR1 R1 band magnitude assuming object is star mag phot.mag;em.opt.B float sCorMagR2 R2 band magnitude assuming object is star mag phot.mag;em.opt.B float sCorMagI I band magnitude assuming object is star mag phot.mag;em.opt.B float meanClass Estimate of image class based on unit-weighted mean of individual classes src.class int classB Image classification from B band detection src.class int classR1 Image classification from R1 band detection src.class int classR2 Image classification from R2 band detection src.class int classI Image classification from I band detection src.class int ellipB Ellipticity of B band detection src.ellipticity float ellipR1 Ellipticity of R1 band detection src.ellipticity float ellipR2 Ellipticity of R2 band detection src.ellipticity float ellipI Ellipticity of I band detection src.ellipticity float qualB Bitwise quality flag from B band detection meta.code.qual int qualR1 Bitwise quality flag from R1 band detection meta.code.qual int qualR2 Bitwise quality flag from R2 band detection meta.code.qual int qualI Bitwise quality flag from I band detection meta.code.qual int blendB Blend flag from B band detection meta.code.multip int blendR1 Blend flag from R1 band detection meta.code.multip int blendR2 Blend flag from R2 band detection meta.code.multip int blendI Blend flag from I band detection meta.code.multip int prfStatB Profile statistic from B band detection N(0,1) ?? float prfStatR1 Profile statistic from R1 band detection N(0,1) ?? float prfStatR2 Profile statistic from R2 band detection N(0,1) ?? float prfStatI Profile statistic from I band detection N(0,1) ?? float l The Galactic longitude of the source deg pos.galactic.lon float b The Galactic latitude of the source deg pos.galactic.lat float d The great-circle distance of the source from the Galactic centre deg pos.angDistance float Ebmv The estimated foreground reddening at this position from Schlegel et al. (1998) mag phys.absorption.gal float Source objID Unique identifier of merged source ID_MAIN char objIDB objID for B band detection merged into this object meta.id.assoc int objIDR1 objID for R1 band detection merged into this object meta.id.assoc int objIDR2 objID for R2 band detection merged into this object meta.id.assoc int objIDI objID for I band detection merged into this object meta.id.assoc int htmId Hierarchical Triangular Mesh (20-deep) of centroid pos.eq int epoch Epoch of position (variance weighted mean epoch of available measures) year time.epoch float ra Mean RA, computed from detections merged in this catalogue deg POS_EQ_RA_MAIN double dec Mean Dec, computed from detections merged in this catalogue deg POS_EQ_DEC_MAIN double sigRA Uncertainty in RA (formal random error not inc. systematic errors) deg meta.code.error float sigDec Uncertainty in Dec (formal random error not inc. systematic errors) deg meta.code.error float cx Cartesian x of unit (ra,dec) vector on celestial sphere float cy Cartesian y of unit (ra,dec) vector on celestial sphere float cz Cartesian z of unit (ra,dec) vector on celestial sphere float muAcosD Proper motion in RA direction mas/yr pos.pm;pos.eq.ra float muD Proper motion in Dec direction mas/yr pos.pm;pos.eq.dec float sigMuAcosD Error on proper motion in RA direction mas/yr meta.code.error float sigMuD Error on proper motion in Dec direction mas/yr meta.code.error float chi2 Chi-squared value of proper motion solution stat.fit.chi2 float Nplates No. of plates used for this proper motion measurement phys.atmol.number int classMagB B band magnitude selected by B image class mag phot.mag;em.opt.B float classMagR1 R1 band magnitude selected by R1 image class mag phot.mag;em.opt.B float classMagR2 R2 band magnitude selected by R2 image class mag phot.mag;em.opt.B float classMagI I band magnitude selected by I image class mag phot.mag;em.opt.B float gCorMagB B band magnitude assuming object is galaxy mag phot.mag;em.opt.B float gCorMagR1 R1 band magnitude assuming object is galaxy mag phot.mag;em.opt.B float gCorMagR2 R2 band magnitude assuming object is galaxy mag phot.mag;em.opt.B float gCorMagI I band magnitude assuming object is galaxy mag phot.mag;em.opt.B float sCorMagB B band magnitude assuming object is star mag phot.mag;em.opt.B float sCorMagR1 R1 band magnitude assuming object is star mag phot.mag;em.opt.B float sCorMagR2 R2 band magnitude assuming object is star mag phot.mag;em.opt.B float sCorMagI I band magnitude assuming object is star mag phot.mag;em.opt.B float meanClass Estimate of image class based on unit-weighted mean of individual classes src.class int classB Image classification from B band detection src.class int classR1 Image classification from R1 band detection src.class int classR2 Image classification from R2 band detection src.class int classI Image classification from I band detection src.class int ellipB Ellipticity of B band detection src.ellipticity float ellipR1 Ellipticity of R1 band detection src.ellipticity float ellipR2 Ellipticity of R2 band detection src.ellipticity float ellipI Ellipticity of I band detection src.ellipticity float qualB Bitwise quality flag from B band detection meta.code.qual int qualR1 Bitwise quality flag from R1 band detection meta.code.qual int qualR2 Bitwise quality flag from R2 band detection meta.code.qual int qualI Bitwise quality flag from I band detection meta.code.qual int blendB Blend flag from B band detection meta.code.multip int blendR1 Blend flag from R1 band detection meta.code.multip int blendR2 Blend flag from R2 band detection meta.code.multip int blendI Blend flag from I band detection meta.code.multip int prfStatB Profile statistic from B band detection N(0,1) ?? float prfStatR1 Profile statistic from R1 band detection N(0,1) ?? float prfStatR2 Profile statistic from R2 band detection N(0,1) ?? float prfStatI Profile statistic from I band detection N(0,1) ?? float l The Galactic longitude of the source deg pos.galactic.lon float b The Galactic latitude of the source deg pos.galactic.lat float d The great-circle distance of the source from the Galactic centre deg pos.angDistance float Ebmv The estimated foreground reddening at this position from Schlegel et al. (1998) mag phys.absorption.gal float Field systemID Unique identifier of the system of survey field centres meta.id;meta.main int fieldID Unique identifier of survey field (fieldNum and systemID combo) obs.field int fieldNum ESO/SRC or Palomar survey system field number obs.field int nominalRA Nominal field centre RA deg pos.eq.ra;meta.main float nominalDec Nominal field centre Dec deg pos.eq.dec;meta.main float htmId Hierarchical Triangular Mesh (20-deep) of nominal field centre pos.eq int cx Cartesian x of unit (ra,dec) vector on celestial sphere float cy Cartesian y of unit (ra,dec) vector on celestial sphere float cz Cartesian z of unit (ra,dec) vector on celestial sphere float IsoCalVersion versionID Unique identifier for the calibration version meta.software int startDate Start date at which the calibration was released MM-DD-YYYY time.epoch char endDate End date at which the calibration was superseded MM-DD-YYYY time.epoch char description Short description of the calibration version meta.note char PrevIsoCal versionID Unique identifier for the calibration version meta.id;meta.main int plateID Unique identifier of the plate obs.field int gradient Gradient of the isophotal scale mags per instrumental mag stat.param float zeropoint Zeropoint of the isophotal scale mags phot.mag;arith.zp float slump Fourth-order radial term in calibration mags per (2.5 deg)^4 stat.param float colourZP Colour zeropoint (wrt Bj) of calibration mags stat.param float CurrIsoCal plateID Unique identifier of the plate obs.field int gradient Gradient of the isophotal scale mags per instrumental mag stat.param float zeropoint Zeropoint of the isophotal scale mags phot.mag;arith.zp float slump Fourth-order radial term in calibration mags per (2.5 deg)^4 stat.param float colourZP Colour zeropoint (wrt Bj) of calibration mags stat.param float CrossNeighbours2MASSXSC ssaID The object identifier from the SSA Source table meta.id;meta.main int xscID The object identifier (ext_key) from TWOMASS.twomass_xsc meta.id;meta.dataset int distanceMins The angular separation of the cross-neighbour arcminutes pos.angDistance float CrossNeighboursDR2 ssaID The object identifier from the SSA Source table meta.id;meta.main int sdssID The object identifier from BestDR2.PhotoObj meta.id;meta.dataset int distanceMins The angular separation of the cross-neighbour arcminutes pos.angDistance float sdssType The SDSS image classification flag src.class int sdssPrimary meta.code int CrossNeighboursDR5 ssaID The object identifier from the SSA Source table meta.id;meta.main int sdssID The object identifier from BestDR5.PhotoObj meta.id;meta.dataset int distanceMins The angular separation of the cross-neighbour arcminutes pos.angDistance float sdssType The SDSS image classification flag src.class int sdssPrimary meta.code int CrossNeighbours2MASSPSC ssaID The object identifier from the SSA Source table meta.id;meta.main int pscID The object identifier (pts_key) from TWOMASS.twomass_psc meta.id;meta.dataset int distanceMins The angular separation of the cross-neighbour arcminutes pos.angDistance float