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Schema Browser

Find detailed descriptions of the data available in each data release

The Schema Browser displays an extensive explanation of each type of data product each survey/archive offers, along with any relevant analysis and publication information (see also individual survey documentation for more info). For more information on the schema browser, go to the Schema Browser Documentation. For more information on the data products within the schema browser, go to the team's documentation on Data Central (the link for each survey can be found in the Meta box below).

2dFGRS 
name: 2dfgrs | type: Survey | Matthew Colless [javascript protected email address] | website | docs |

The 2dF Galaxy Redshift Survey (2dFGRS) is a major spectroscopic survey taking full advantage of the unique capabilities of the 2dF facility built by the Anglo-Australian Observatory. The 2dFGRS is integrated with the 2dF QSO survey (Croom et al., 2004). The 2dFGRS obtained spectra for 245591 objects, mainly galaxies, brighter than a nominal extinction-corrected magnitude limit of bJ=19.45. Reliable (quality>=3) redshifts were obtained for 221414 galaxies. The galaxies cover an area of approximately 1500 square degrees selected from the extended APM Galaxy Survey in three regions: a North Galactic Pole (NGP) strip, a South Galactic Pole (SGP) strip, and random fields scattered around the SGP strip. Redshifts are measured from spectra covering 3600-8000 Angstroms at a two-pixel resolution of 9.0 Angstrom and a median S/N of 13 per pixel. All redshift identifications are visually checked and assigned a quality parameter Q in the range 1-5; Q>=3 redshifts are 98.4% reliable and have an rms uncertainty of 85 km/s. The overall redshift completeness for Q>=3 redshifts is 91.8% but this varies with magnitude from 99% for the brightest galaxies to 90% for objects at the survey limit (Colless et al., 2007).

Final Data Release
name: fdr | type: DataRelease | ingested: 24 Nov 2020, 1:19 p.m. | Matthew Colless [javascript protected email address] | version 1.0 |
Definitive
name: Definitive | type: CatalogueGroup | Matthew Colless [javascript protected email address] | version 1 |
All the available information
phot_all
name: phot_all | type: CatalogueTable | Matthew Colless [javascript protected email address] | version 1 |
All the photometric information
Address this table as 2dfgrs_fdr.phot_all
Name Unit Description UCD (hover for description)
Name Unit Description UCD
SRSB None Supercosmos R vrs Bj match classification meta.code
SRQUAL None Quality flag meta.code.qual
SRBLEND None Deblending flag meta.code
SRSIGMA None Profile classification statistic stat.value
SRCLASS None Classification flag meta.code
SRPA deg Celestial position angle pos.posAng
SRBI 0.01 microns Weighted semi-minor axis phys.angSize.sminAxis
SRAI 0.01 microns Weighted semi-major axis phys.angSize.smajAxis
SRAREA pixels Total area phys.area
SRRMAG mag UK-J (R) magnitude phot.mag;em.opt.R
SRDEC deg Object declination (J2000.0) pos.eq.dec
SRRA deg Object RA (J2000.0) pos.eq.ra
SBAPM None APM-Supercosmos Bj-band match classification meta.code
SBQUAL None Quality flag meta.code.qual
SBBLEND None Deblending flag meta.code
SBSIGMA None Profile classification statistic stat.value
SBCLASS None Classification flag meta.code
SBPA deg Celestial position angle pos.posAng
SBBI 0.01 microns Weighted semi-minor axis phys.angSize.sminAxis
SBAI 0.01 microns Weighted semi-major axis phys.angSize.smajAxis
SBAREA pixels Total area phys.area
SBBJMAG mag UK-J (Bj) magnitude phot.mag;em.opt.B
SBDEC deg Object declination (J2000.0) pos.eq.dec
SBRA deg Object RA (J2000.0) pos.eq.ra
VISCOMM None Visual check comments meta.note
VISCHECK None Visual check flag meta.code
GALEXT mag Galactic extinction phys.absorption
BJG_100 mag bj without extinction correction (100k) phot.mag;em.opt.B
BJSEL100 mag bj mag used in the object selection (100k) phot.mag;em.opt.B
BJG_OLD mag Original bj magnitude without extinction correction phot.mag;em.opt.B
BJSELOLD mag Original bj magnitude with extinction correction used in the object selection phot.mag;em.opt.B
OBJDEC radians Dec in radians pos.eq.dec
OBJRA radians RA in radians pos.eq.ra
OBJEQNX None Equinox of the plate reference frame time.equinox
REGION None GSSS Region name obs.field
IFIELD None UKST field obs.field
BJG mag Final bj magnitude without extinction correction phot.mag;em.opt.B
AREA pixels Isophotal area in pixels phys.area
ECCENT None Eccentricity src.morph.param
ORIENT deg Orientation in degrees clockwise from E-W pos.posAng
JON None Eyeball class flag src.class
IGAL None Final class flag (equals 1 for a galaxy) src.class.starGalaxy
PARMU None mu classification parameter src.morph.param
PARK None k classification parameter src.morph.param
PROB None psi classification parameter src.morph.param
BJSEL mag Final bj mag used in the object selection phot.mag;em.opt.B
APMEQNX None Equinox of RA and Dec time.equinox
DEC radians Dec in radians pos.eq.dec
RA radians RA in radians pos.eq.ra
NAME None 2dFgg assigned name meta.id
SEQNUM None Sequence number: Database Primary Key meta.id
extnum None Extension number meta.code
spectra None Number of spectra for this object meta.number
best None In extension 0, extension number with best spectrum; in extension>0, 1 if best spectrum and 0 otherwise meta.code
UKST None UKST sky survey field number obs.field
b2 deg Galactic latitude pos.galactic.lat
l2 deg Galactic longitude pos.galactic.lon
dec2000 dd mm ss.ss DEC (J2000) in DD MM SS.S pos.eq.dec;meta.main
ra2000 hh mm ss.ss RA (J2000) in HH MM SS.SS pos.eq.ra;meta.main
dec dd mm ss.ss DEC (B1950) in DD MM SS.S pos.eq.dec
ra hh mm ss.ss RA (B1950) in HH MM SS.SS pos.eq.ra
name None 2dFGRS name meta.id;meta.main
delta radians Dec. (B1950) in radians pos.eq.dec
alpha radians R.A. (B1950) in radians pos.eq.ra
serial None 2dFGRS serial number meta.id
spec_all
name: spec_all | type: CatalogueTable | Matthew Colless [javascript protected email address] | version 1 |
All the spectroscopic information
Address this table as 2dfgrs_fdr.spec_all
Name Unit Description UCD (hover for description)
Name Unit Description UCD
OBSDECJ2000 deg Observed Dec (J2000) pos.eq.dec
OBSRAJ2000 deg Observed RA (J2000) pos.eq.ra
SNR None Median signal-to-noise ratio per pixel stat.snr;stat.median
REFEXP s Exposure time (secs) of reference run obs.exposure
REFRUN None AAT Run number of reference frame obs.param
NCOMB None Number of frames combined meta.number
OBSFLD None 2dF observed field number obs.field
PID None 2dF pid meta.code
PTRTYPE None 2dF ptrtype meta.code
THETA deg 2dF fibre angle instr.param
OBJMAG mag 2dF object magnitude phot.mag
OBJYERR pixels 2dF object y position error stat.error;pos.cartesian.y
OBJXERR pixels 2dF object x position error stat.error;pos.cartesian.x
OBJY pixels 2dF object y position pos.cartesian.y
OBJX pixels 2dF object x position pos.cartesian.x
LAMBDAC Angstrom Central wavelength em.wl.central
GRATANGL deg 2dF grating angle instr.param
GRATBLAZ None 2dF grating blaze direction instr.param
GRATLPMM None 2dF grating line per mm instr.param
GRATID None 2dF grating ID meta.id;instr
SPECTID None 2dF spectrograph ID meta.id;instr
UTDATE YYYY:MM:DD UT date of observation time.epoch;obs
GRS_DATE None 2dF YYMMDD observed date; -99 if none time.epoch
OBSRUN None Observation run obs.param;obs
FIBRE None 2dF fibre number obs.param
PIVOT None 2dF pivot number obs.param
PLATE None 2dF plate number (0 or 1); -99 if none obs.param
SPFILE None 2dF reduced data file meta.file
THPUT None Fibre Throughput instr.param
Z_COMM None Observers Comment meta.note
IALTER None No idea meta.cryptic
Q_FINAL None Suggested quality for redshift meta.code.qual
Q_Z_ABS None Cross-correlation quality meta.code.qual
Z_ABS None Cross-correlation redshift stat.fit.param
R_CRCOR None Cross-correlation peak stat.fit.param
KBESTR None Cross-correlation template from best spectrum stat.fit.param
Q_Z_EMI None Emission redshift quality meta.code.qual;src.redshift
Z_EMI None Emission redshift src.redshift;pos.heliocentric
NGOOD None Number of good emmision lines meta.number
NMBEST None Number of emission lines for Z_EMI meta.number
ABEMMA None Redshift type (abs=1, emi=2, man=3) meta.code;src.redshift
QUALITY None Redshift measurement quality meta.code.qual;src.redshift
Z_HELIO None Heliocentric corrected redshift src.redshift;pos.heliocentric
Z None Raw measured redshift src.redshift
MATCH_DR arcsec Position match dr in arcsec pos.angDistance
OBSDEC radians Observed Dec pos.eq.dec
OBSRA radians Observed RA pos.eq.ra
OBSNAME None Observed object name meta.id
extnum None Extension number meta.code
spectra None Number of spectra for this object meta.number
best None In extension 0, extension number with best spectrum; in extension>0, 1 if best spectrum and 0 otherwise meta.code
quality None Redshift quality parameter (quality=1-5; reliable redshifts have quality>=3) meta.code.qual;src.redshift
abemma None Redshift type (abs=1,emi=2,man=3) meta.code;src.redshift
z_helio None Heliocentric redshift src.redshift;pos.heliocentric
z None Observed redshift src.redshift
fiber None 2dF fiber obs.param
plate None 2dF plate obs.param
pivot None 2dF pivot obs.param
TDFgg None 2dFGRS field number (+NGP,-SGP) obs.field
obsrun None Observing run year and month obs.param;obs
UKST None UKST sky survey field number obs.field
name None 2dFGRS name meta.id;meta.main
serial None 2dFGRS serial number meta.id
Key
name: Key | type: CatalogueGroup | Matthew Colless [javascript protected email address] | version 1 |
A subset of astrophysically-important information
phot_key
name: phot_key | type: CatalogueTable | Matthew Colless [javascript protected email address] | version 1 |
Key photometric information
Address this table as 2dfgrs_fdr.phot_key
Name Unit Description UCD (hover for description)
Name Unit Description UCD
100BJSEL mag 100k release bj magnitude with extinction correction (prior to re-calibration to BJSEL) phot.mag;em.opt.B
100_BJG mag 100k release bj magnitude without extinction correction (prior to re-calibration to BJG) phot.mag;em.opt.B
BJSELOLD mag Original bj magnitude with extinction correction (prior to re-calibration to BJSEL); used to select survey sample phot.mag;em.opt.B
BJG_OLD mag Original bj magnitude without extinction correction (prior to re-calibration to BJG) phot.mag;em.opt.B
NAME None 2dFGRS assigned name; if either (i) BJSELOLD is fainter than 19.45, or (ii) the object could not be allocated to a fibre by the configuration algorithm, then NAME is blank meta.id
IGFIELD None Galaxy number in UKST field meta.number
IFIELD None UKST field obs.field
REDMAG mag Not used phot.mag;em.opt.R
SMAG mag Unmatched raw stellar mag (from APMCAL) phot.mag
FMAG mag Unmatched raw APM 2" profile integrated mag phot.mag
PMAG mag Unmatched raw APM profile integrated mag phot.mag
RMAG mag Unmatched APM 'total' mag phot.mag
BJG mag Final bj magnitude without extinction correction phot.mag;em.opt.B
DY None Distortion corrected difference (y_bj - y_R)*100 arith.diff
DX None Distortion corrected difference (x_bj - x_R)*100 arith.diff
Y_BJ None Plate y_bj in 8 micron pixels instr.scale
X_BJ None Plate x_bj in 8 micron pixels instr.scale
AREA pixels Isophotal area in pixels phys.area
ECCENT None Eccentricity (e): e*200 = 200*(((sxx-syy)**2 + 4sxy**2)**0.5)/(sxx + syy) src.morph.param
ORIENT deg Orientation measured in degrees clockwise from E to W: orient = 180/pi * atan(2*sxy/((sxx + syy)*(1 + e)-syy)) pos.posAng
JON None Eyeball classification, value > 0 only for galaxies brighter than about 18th mag: 0 = noise, 1 = S0, 2 = elliptical, 3 = spiral, 4 = irregular, 5 = undetermined galaxy, 6 = star, 7 = star + star merger, 8 = galaxy + star merger, 9 = galaxy + galaxy merger src.class
IGAL None Final classification: -4 = noise, -3 = star + star, -2 = star + fuzz, -1 = star, 0 = galaxy + star merger, 1 = galaxy, 2 = galaxy + galaxy merger src.class.starGalaxy
PARMU None mu classification parameter = mu / mu_star src.morph.param
PARK None k classification parameter = k / k_star src.morph.param
PROB None psi classification parameter: for eyeballed galaxies, psi*1000 = (10000 + abs(jon) + psi*100); for eyeballed non-galaxies, psi*1000 = -(10000 + abs(jon) + psi*100) src.morph.param
BJSEL mag Final bj magnitude with extinction correction (i.e. with corrections for isophote, field-effects and plate-matching, then calibrated to total mags with saturation correction, and then extinction corrected) phot.mag;em.opt.B
dec dd mm ss.ss Dec. (B1950) in DD MM SS.S pos.eq.dec
ra hh mm ss.ss R.A. (B1950) in HH MM SS.SS pos.eq.ra
SEQNUM None Assigned sequence number to this object; determines the filename (SEQNUM.fits) meta.id
spec_sum
name: spec_sum | type: CatalogueTable | Matthew Colless [javascript protected email address] | version 1 |
Summary of spectroscopic information
Address this table as 2dfgrs_fdr.spec_sum
Name Unit Description UCD (hover for description)
Name Unit Description UCD
obsrun None Observation run of best spectrum obs.param;obs
quality None Redshift quality parameter (quality=1-5; reliable redshifts have quality>=3) meta.code.qual;src.redshift
z_helio None Best redshift (heliocentric) src.redshift;pos.heliocentric
z None Best redshift (observed) src.redshift
best None FITS extension number of the best spectrum meta.code
SR_R mag Supercosmos R magnitude without extinction correction phot.mag;em.opt.R
SB_BJ mag Supercosmos bj magnitude without extinction correction phot.mag;em.opt.B
GALEXT mag Galactic extinction value phys.absorption
BJSELOLD mag Original bj magnitude with extinction correction phot.mag;em.opt.B
BJG_OLD mag Original bj magnitude without extinction correction phot.mag;em.opt.B
BJSEL mag Final bj magnitude with extinction correction phot.mag;em.opt.B
BJG mag Final bj magnitude without extinction correction phot.mag;em.opt.B
dec2000 dd mm ss.ss Dec. (J2000) pos.eq.dec;meta.main
ra2000 hh mm ss.ss R.A. (J2000) pos.eq.ra;meta.main
dec dd mm ss.ss Dec. (B1950) pos.eq.dec
ra hh mm ss.ss R.A. (B1950) pos.eq.ra
UKST None UKST plate (=IFIELD) obs.field
name None 2dFGRS name (=NAME) meta.id;meta.main
spectra None Number of spectra meta.number
serial None Database serial number (=SEQNUM) meta.id
spec_key
name: spec_key | type: CatalogueTable | Matthew Colless [javascript protected email address] | version 1 |
Key spectroscopic information for each observation
Address this table as 2dfgrs_fdr.spec_key
Name Unit Description UCD (hover for description)
Name Unit Description UCD
ETA_TYPE None Eta spectral type parameter (-99.9 if none) stat.fit.param
SNR None Median S/N per pixel stat.snr;stat.median
NMBEST None Number of emission lines for Z_EMI meta.number
Z_EMI None Emission redshift src.redshift;pos.heliocentric
R_CRCOR None Cross-correlation R value stat.fit.param
KBESTR None Cross-correlation template stat.fit.param
Z_ABS None Cross-correlation redshift stat.fit.param
ABEMMA None Redshift type (abs=1, emi=2, man=3) meta.code;src.redshift
QUALITY None Redshift quality parameter meta.code.qual;src.redshift
Z_HELIO None Redshift (heliocentric) src.redshift;pos.heliocentric
Z None Redshift (observed) src.redshift
OBSRUN None Observation run obs.param;obs
UTDATE YYYY:MM:DD UT date of observation time.epoch;obs
name None 2dFGRS name (=NAME) meta.id;meta.main
serial None Database serial number (=SEQNUM) meta.id
spec_best
name: spec_best | type: CatalogueTable | Matthew Colless [javascript protected email address] | version 1 |
The best spectrum of each surveyed galaxy
Address this table as 2dfgrs_fdr.spec_best
Name Unit Description UCD (hover for description)
Name Unit Description UCD
ETA_TYPE None Eta spectral type parameter from best spectrum (-99.9 if none) stat.fit.param
SNR None Median S/N per pixel from best spectrum stat.snr;stat.median
NMBEST None Number of emission lines for Z_EMI from best spectrum meta.number
Z_EMI None Emission redshift from best spectrum src.redshift;pos.heliocentric
R_CRCOR None Cross-correlation R value from best spectrum stat.fit.param
KBESTR None Cross-correlation template from best spectrum stat.fit.param
Z_ABS None Cross-correlation redshift from best spectrum stat.fit.param
abemma None Redshift type (abs=1, emi=2, man=3) meta.code;src.redshift
quality None Redshift quality parameter for best spectrum (quality=1-5; reliable redshifts have quality>=3) meta.code.qual;src.redshift
obsrun None Observation run of best spectrum obs.param;obs
z_helio None Best redshift (heliocentric) src.redshift;pos.heliocentric
z None Best redshift (observed) src.redshift
SR_R mag SuperCosmos R magnitude without extinction correction phot.mag;em.opt.R
SB_BJ mag SuperCosmos bj magnitude without extinction correction phot.mag;em.opt.B
GALEXT mag Galactic extinction value phys.absorption
BJSELOLD mag Original bj magnitude with extinction correction phot.mag;em.opt.B
BJG_OLD mag Original bj magnitude without extinction correction phot.mag;em.opt.B
BJSEL mag Final bj magnitude with extinction correction phot.mag;em.opt.B
BJG mag Final bj magnitude without extinction correction phot.mag;em.opt.B
dec2000 dd mm ss.ss Dec. (J2000) pos.eq.dec;meta.main
ra2000 hh mm ss.ss R.A. (J2000) pos.eq.ra;meta.main
dec dd mm ss.ss Dec. (B1950) pos.eq.dec
ra hh mm ss.ss R.A. (B1950) pos.eq.ra
UKST None UKST plate (=IFIELD) obs.field
name None 2dFGRS name (=NAME) meta.id;meta.main
spectra None Number of spectra obtained meta.number
serial None Database serial number (=SEQNUM) meta.id
Data Central Generated
name: dc_generated | type: CatalogueGroup | Data Central [javascript protected email address] | version 1 |
Additional tables created by Data Central
dc_source_list
name: dc_source_list | type: CatalogueTable | Data Central [javascript protected email address] | version 1 |
Source list of all objects contained within 6dFGS
Address this table as 2dfgrs_fdr.dc_source_list
Name Unit Description UCD (hover for description)
Name Unit Description UCD
dec pos.eq.dec
ra pos.eq.ra
source_name None unique ID used for identifying sources meta.id;meta.main
AAT
name: AAT | type: SpectraFacility |
All 2dFGRS spectra taken with the AAT.
1D Spectrum
name: spectrum_1d | type: SpectrumDataProduct | version v1.0 |
Reduced 1D spectrum
6dFGS 
name: 6dfgs | type: Survey | Heath Jones [javascript protected email address] | website | docs |

The 6dF Galaxy Survey (6dFGS) measured the redshifts of around 150 000 galaxies, and the peculiar velocities of a 15 000-member subsample, over almost the entire southern sky. The targets are all galaxies brighter than K_tot = 12.75 in the 2MASS Extended Source Catalog (XSC), supplemented by 2MASS and SuperCOSMOS galaxies that complete the sample to limits of (H, J, r_F, b_J) = (13.05, 13.75, 15.6, 16.75). Central to the survey is the Six-Degree Field (6dF) multifibre spectrograph, an instrument able to record 150 simultaneous spectra over the 5.7 degree field of the UK Schmidt Telescope. Spectra are obtained in two observations using separate V and R gratings, that together give R ~ 1000 over at least 400-750 nm and signal-to-noise ratio ~10 per pixel. Redshift measurements are obtained semi-automatically, and are assigned a quality value based on visual inspection.

Final Data Release
name: fdr | type: DataRelease | ingested: 24 Nov 2020, 1:19 p.m. | Heath Jones [javascript protected email address] | version 1.0 |
main
name: main | type: CatalogueGroup | Heath Jones [javascript protected email address] | version 1 |
The 6dF Galaxy Survey Catalogue
TARGET
name: TARGET | type: CatalogueTable | Heath Jones [javascript protected email address] | version 1 |
The master target list
Address this table as 6dfgs_fdr.TARGET
Name Unit Description UCD (hover for description)
Name Unit Description UCD
FRAMENAME None name of SDF frame meta.id
TEMPLATECODE None code for x-correlation template meta.id
RMAGSEL mag Rf magnitude from online SuperCOSMOS Sky Surveys (99.99 and 22.0 are nulls), appeared as RMAG in the EDR and DR1 phot.mag;em.opt.R
BMAGSEL mag Bj magnitude from online SuperCOSMOS Sky Surveys (99.99 and 23.0 are nulls), appeared as BMAG in the EDR and DR1 phot.mag;em.opt.B
ZCATREF None ZCAT reference meta.id
ZCATERR km/s error on velocity in ZCAT phys.veloc;stat.error
ZCATVEL km/s velocity in ZCAT phys.veloc
SG None SSS star/galaxy flag 1=galaxy 2=star 3=unclass 4=noise meta.id
RMAG mag Rf galaxy magnitude from recalibrated SuperCOSMOS data (0.00 is null) phot.mag;em.opt.R
BMAG mag Bj galaxy magnitude from recalibrated SuperCOSMOS data (0.00 is null) phot.mag;em.opt.B
PROGID None highest priority programme ID meta.id
A_V mag Schlegel V extinction em.opt.V;phys.absorption.gal
GB degrees galactic latitude pos.galactic.lat
GL degrees galactic longitude pos.galactic.lon
CZ None Cartesian z of unit (RA,Dec) vector on celestial sphere meta.cryptic
CY None Cartesian y of unit (RA,Dec) vector on celestial sphere meta.cryptic
CX None Cartesian x of unit (RA,Dec) vector on celestial sphere meta.cryptic
DEC degrees master Dec J2000 (decimal degrees) pos.eq.dec
RA degrees master RA J2000 (decimal degrees) pos.eq.ra
HTMID None Hierarchical Triangular Mesh (20-deep) number, mainly useful internally for indexing on position pos.HTM
TARGETNAME None name in config file, used to name FITS file and generate thumbnail images meta.id
TARGETID None unique ID no., used to link tables meta.id;meta.main
SPECTRA
name: SPECTRA | type: CatalogueTable | Heath Jones [javascript protected email address] | version 1 |
Redshifts and observational data
Address this table as 6dfgs_fdr.SPECTRA
Name Unit Description UCD (hover for description)
Name Unit Description UCD
AXISEND_V angstroms end wavelength of the V-frame em.wl;instr.setup
AXISSTART_V angstroms starting wavelength of the V-frame em.wl;instr.setup
FRAMENAME None name of the observed field frame meta.id
PID_R None PID number read from R frame meta.cryptic
RECMAG_R mag magnitude read from R frame phot.mag
PIVOT_R None R pivot number instr.setup
FIBRE_R TODO fibre number (row on CCD) meta.id
THETA_R TODO fibre angle R frame instr.offset
YERR_R TODO error on Y_R position stat.error;pos.cartesian.y
XERR_R TODO error on X_R position stat.error;pos.cartesian.x
Y_R TODO y position of object from R frame pos.cartesian.y
X_R TODO x position of object from R frame pos.cartesian.x
DEC_R degrees observed Dec (J2000 degrees) pos.eq.dec
RA_R degrees observed RA (J2000 degrees) pos.eq.ra
THPUT_R None R throughput of fibre instr.sensitivity
NAME_R None name of object in R frame meta.id
MJDOBS_R None MJD of observation time.epoch;obs
UTSTRT_R None UT start time of R reference frame time.start
UTDATE_R None UT date in R frame, default 1900-01-01 time.epoch;obs
CCD_R None R CCD name meta.id
NOISE_R TODO R readout noise instr.det.noise
GAIN_R TODO R gain instr.setup
FOCUS_R TODO R frame spectrograph focus value instr.setup
SOURCE_R None R source plate meta.id
GRATBLAZ_R None R blaze direction instr.setup
GRATSLOT_R None R grating slot ID meta.id
GRATSET_R TODO R grating micrometer setting instr.setup
GRATID_R None grating ID in R frame meta.id
NCOMB_R None number of R frames combined meta.number
EXP_R seconds R reference frame exposure time seconds time.duration
RUN_R None R run number meta.id
OBSID_R None obsid in R frame meta.id
LABEL_R None label in R frame meta.id
PROGID_R None programme ID in R frame meta.id
CONMJD_R None time which was specified when configure was run time.epoch;instr.setup
ACTMJD_R None the time the field was actually configured time.epoch;instr.setup
APPDEC_R degrees apparent DEC of field centre pos.eq.dec
APPRA_R degrees apparent RA of field centre pos.eq.ra
CENDEC_R degrees DEC of field centre pos.eq.dec
CENRA_R degrees RA of field centre pos.eq.ra
TITLE_R None eg 1325m243p2.sds observation title meta.id
PID_V None PID number read from V frame meta.cryptic
RECMAG_V mag magnitude read from V frame phot.mag
PIVOT_V None V pivot number instr.setup
FIBRE_V None fibre number (row on CCD) meta.id
THETA_V degrees fibre angle V frame instr.offset
YERR_V TODO error on Y_V position stat.error;pos.cartesian.y
XERR_V TODO error on X_V position stat.error;pos.cartesian.x
Y_V TODO y position of object from V frame pos.cartesian.y
X_V TODO x position of object from V frame pos.cartesian.x
DEC_V degrees observed Dec (J2000 degrees) pos.eq.dec
RA_V degrees observed RA (J2000 degrees) pos.eq.ra
THPUT_V None V throughput of fibre instr.sensitivity
NAME_V None name of object in V frame meta.id
MJDOBS_V None MJD of observation time.epoch;obs
UTSTRT_V None UT start time of V reference frame time.start
UTDATE_V None UT date in V frame, default 1900-01-01 time.epoch;obs
CCD_V None V CCD name meta.id
NOISE_v TODO V readout noise instr.det.noise
GAIN_V TODO V gain instr.setup
TFOCUS_V TODO V frame telescope focus value instr.setup
FOCUS_V TODO V frame spectrograph focus value instr.setup
SOURCE_V None V source plate meta.id
GRATBLAZ_V None V blaze direction instr.setup
GRATSLOT_V None V grating slot ID meta.id
GRATSET_V TODO V grating micrometer setting instr.setup
GRATID_V None grating ID in V frame meta.id
Z_COMM_INITIAL None redshifter's comment prior to revision meta.note
PROGID None highest priority programme ID of observed object meta.id
REVCOMMENT None comment/origin of redshift revision meta.note
REVTEMPLATE None code of template used in redshift revision meta.code
DEPRECATED None flag used to expunge rows prior to release meta.code
QUALITY_UPDATE_COMM None comment on quality change meta.note
XTALKCOMM None comment on crosstalk meta.note
XTALKVELOFF km/s velocity offset between contaminated and contaminator objects spect.dopplerVeloc;arith.diff
XTALKSCORE None 0 (uncontaminated) to 5 (likely cross-talk) meta.code.qual
XTALKFLAG None -1 if object is a contaminator, 0 (default) objects is neither contaminator or contaminated, +N object contaminated by fibre N. Details on cross-talk contamination meta.code.class
QUALITY_INITIAL None QUALITY value at initial ingest meta.code.qual
SLIT_VANE_CORR km/s slit vane redshift correction in km/s arith.factor;src.redshift
Z_UPDATE_COMM None not currently used meta.note
Z_UPDATE_FLAG None 0 - uncorrected, 1 - slit vane corrected, 2 - template corrected, 3 - template and slit vane corrected meta.code
Z_HELIO_INITIAL None value of attribute Z_HELIO at initial ingest i.e. before further corrections src.redshift
Z_INITIAL None value of attribute Z at initial ingest i.e. before corrections src.redshift
MATCHSPECID None SPECID of same object observation already ingested (usually = 0, helps flag frames objects that were re-analysed meta.id
AXISEND_R angstroms end wavelength of the R-frame em.wl;instr.setup
AXISSTART_R angstroms starting wavelength of the R-frame em.wl;instr.setup
NCOMB_V None number of V frames combined meta.number
EXP_V seconds V reference frame exposure time seconds time.duration
RUN_V None V run number meta.id
OBSID_V None obsid in V frame meta.id
LABEL_V None label in V frame meta.id
PROGID_V None programme ID in V frame meta.id
CONMJD_V None time which was specified when configure was run time.epoch;instr.setup
ACTMJD_V None the time the field was actually configured time.epoch;instr.setup
APPDEC_V degrees apparent DEC of field centre pos.eq.dec
APPRA_V degrees apparent RA of field centre pos.eq.ra
CENDEC_V degrees DEC of field centre pos.eq.dec
CENRA_V degrees RA of field centre pos.eq.ra
TITLE_V None eg 1325m243p2.sds observation title meta.id
ZFINALERR None error on final quoted redshift, 0.0 if not measured stat.error;src.redshift
ZABSBESTERR None error on the selected absorption line redshift, 0.0 if not measured stat.error;src.redshift
ZEMIBESTERR None error on the selected emission line redshift, 0.0 if not measured stat.error;src.redshift
Z_COMM None redshifter's comment meta.note
IALTER None IALTER=1 if automatic z altered meta.code.class
Q_FINAL None suggested quality for redshift meta.code.qual;src.redshift
Q_Z_ABS None cross-correlation quality meta.code.qual
Z_ABS None cross-correlation redshift(uncorrected) src.redshift
R_CRCOR None cross-correlation peak meta.cryptic
KBESTR None cross-correlation template meta.id
Q_Z_EMI None emission redshift quality meta.code.qual;src.redshift
Z_EMI None emission redshift (uncorrected) src.redshift
NGOOD None number of good emission lines spect.line;meta.number
NMBEST None emission lines for emission z spect.line;meta.number
ABEMMA None redshift type: abs=1,emi=2,man=3 meta.code.member;src.redshift
QUALITY None redshift measurement quality: 4=good 1=bad (6=star) meta.code.qual;src.redshift
Z_HELIO None heliocentric redshift (corrected for heliocentric motion, template offsets and slit vane shift) src.redshift;pos.heliocentric
Z None raw measured redshift,(corrected for template offsets and slit vane shift) src.redshift
Z_ORIGIN None redshift from C=combined V or R frame src.redshift
CZ None Cartesian z of unit vector on celestial sphere meta.cryptic
CY None Cartesian y of unit vector on celestial sphere meta.cryptic
CX None Cartesian x of unit vector on celestial sphere meta.cryptic
HTMID None Hierarchical Triangular Mesh (20-deep), mainly useful internally for indexing on position meta.id
MATCH_DR arcsec position match error (arcsec) stat.error;pos
OBSDEC degrees observed Dec (J2000 degrees) pos.eq.dec
OBSRA degrees observed RA (J2000 degrees) pos.eq.ra
TARGETNAME None matching name in target table, used to name FITS files and generate thumbnail images meta.id
TARGETID None ID no. in Target table meta.id.cross
SPECID None unique ID no., used to generate GIF image of spectrum meta.id
Input Catalogues
name: input_catalogues | type: CatalogueGroup | Heath Jones [javascript protected email address] | version 1 |
The various input catalogues used to create the target list
FSC
name: FSC | type: CatalogueTable | Heath Jones [javascript protected email address] | version 1 |
Sources from the IRAS FAINT Source Catalogue
Address this table as 6dfgs_fdr.FSC
Name Unit Description UCD (hover for description)
Name Unit Description UCD
COMMENT None supplied comments meta.note
MAG_2 mag supplied magnitude 2 phot.mag
PROGID None programme ID meta.id
MAG_1 mag supplied magnitude 1 phot.mag
PRIORITY None survey weight meta.code.class
DEC degrees Dec J2000 pos.eq.dec
RA degrees RA J2000 pos.eq.ra
TARGETID None matching ID number in target meta.id.cross
TARGETNAME None matching name in target table, used to name FITS files and generate thumbnail images meta.id
CATNAME None supplied catalogue name meta.id
OBJID None unique ID number meta.id;meta.main
RASS
name: RASS | type: CatalogueTable | Heath Jones [javascript protected email address] | version 1 |
Candidate AGN from the ROSAT All-Sky Survey
Address this table as 6dfgs_fdr.RASS
Name Unit Description UCD (hover for description)
Name Unit Description UCD
COMMENT None supplied comments meta.note
MAG_2 mag supplied magnitude 2 phot.mag
PROGID None programme ID meta.id
MAG_1 mag supplied magnitude 1 phot.mag
PRIORITY None survey weight meta.code.class
DEC degrees Dec J2000 pos.eq.dec
RA degrees RA J2000 pos.eq.ra
TARGETID None matching ID number in target meta.id.cross
TARGETNAME None matching name in target table, used to name FITS files and generate thumbnail images meta.id
CATNAME None supplied catalogue name meta.id
OBJID None unique ID number meta.id;meta.main
HIPASS
name: HIPASS | type: CatalogueTable | Heath Jones [javascript protected email address] | version 1 |
Sources from the HIPASS HI survey
Address this table as 6dfgs_fdr.HIPASS
Name Unit Description UCD (hover for description)
Name Unit Description UCD
MAG_2 mag supplied magnitude 2 phot.mag
PROGID None programme ID meta.id
MAG_1 mag supplied magnitude 1 phot.mag
PRIORITY None survey weight meta.code.class
DEC degrees Dec J2000 pos.eq.dec
RA degrees RA J2000 pos.eq.ra
TARGETID None matching ID number in target meta.id.cross
TARGETNAME None matching name in target table, used to name FITS files and generate thumbnail images meta.id
CATNAME None supplied catalogue name meta.id
OBJID None unique ID number meta.id;meta.main
DURUKST
name: DURUKST | type: CatalogueTable | Heath Jones [javascript protected email address] | version 1 |
Extension to Durham/UKST galaxy survey
Address this table as 6dfgs_fdr.DURUKST
Name Unit Description UCD (hover for description)
Name Unit Description UCD
MAG_2 mag supplied magnitude 2 phot.mag
PROGID None programme ID meta.id
MAG_1 mag supplied magnitude 1 phot.mag
PRIORITY None survey weight meta.code.class
DEC degrees Dec J2000 pos.eq.dec
RA degrees RA J2000 pos.eq.ra
TARGETID None matching ID number in target meta.id.cross
TARGETNAME None matching name in target table, used to name FITS files and generate thumbnail images meta.id
CATNAME None supplied catalogue name meta.id
OBJID None unique ID number meta.id;meta.main
SHAPLEY
name: SHAPLEY | type: CatalogueTable | Heath Jones [javascript protected email address] | version 1 |
Galaxies from the Shapley supercluster
Address this table as 6dfgs_fdr.SHAPLEY
Name Unit Description UCD (hover for description)
Name Unit Description UCD
MAG_2 mag supplied magnitude 2 phot.mag
PROGID None programme ID meta.id
MAG_1 mag supplied magnitude 1 phot.mag
PRIORITY None survey weight meta.code.class
DEC degrees Dec J2000 pos.eq.dec
RA degrees RA J2000 pos.eq.ra
TARGETID None matching ID number in target meta.id.cross
TARGETNAME None matching name in target table, used to name FITS files and generate thumbnail images meta.id
CATNAME None supplied catalogue name meta.id
OBJID None unique ID number meta.id;meta.main
DENISI
name: DENISI | type: CatalogueTable | Heath Jones [javascript protected email address] | version 1 |
Galaxies from DENIS I < 14.85
Address this table as 6dfgs_fdr.DENISI
Name Unit Description UCD (hover for description)
Name Unit Description UCD
COMMENT None supplied comments meta.note
MAG_2 mag supplied magnitude 2 phot.mag
PROGID None programme ID meta.id
MAG_1 mag supplied magnitude 1 phot.mag
PRIORITY None survey weight meta.code.class
DEC degrees Dec J2000 pos.eq.dec
RA degrees RA J2000 pos.eq.ra
TARGETID None matching ID number in target meta.id.cross
TARGETNAME None matching name in target table, used to name FITS files and generate thumbnail images meta.id
CATNAME None supplied catalogue name meta.id
OBJID None unique ID number meta.id;meta.main
DENISJ
name: DENISJ | type: CatalogueTable | Heath Jones [javascript protected email address] | version 1 |
galaxies from DENIS J < 13.85
Address this table as 6dfgs_fdr.DENISJ
Name Unit Description UCD (hover for description)
Name Unit Description UCD
COMMENT None supplied comments meta.note
MAG_2 mag supplied magnitude 2 phot.mag
PROGID None programme ID meta.id
MAG_1 mag supplied magnitude 1 phot.mag
PRIORITY None survey weight meta.code.class
DEC degrees Dec J2000 pos.eq.dec
RA degrees RA J2000 pos.eq.ra
TARGETID None matching ID number in target meta.id.cross
TARGETNAME None matching name in target table, used to name FITS files and generate thumbnail images meta.id
CATNAME None supplied catalogue name meta.id
OBJID None unique ID number meta.id;meta.main
AGN2MASS
name: AGN2MASS | type: CatalogueTable | Heath Jones [javascript protected email address] | version 1 |
Candidate AGN from the 2MASS red AGN survey
Address this table as 6dfgs_fdr.AGN2MASS
Name Unit Description UCD (hover for description)
Name Unit Description UCD
MAG_3 mag supplied magnitude 3 phot.mag
MAG_2 mag supplied magnitude 2 phot.mag
PROGID None programme ID meta.id
MAG_1 mag supplied magnitude 1 phot.mag
PRIORITY None survey weight meta.code.class
DEC degrees Dec J2000 pos.eq.dec
RA degrees RA J2000 pos.eq.ra
TARGETID None matching ID number in target meta.id.cross
TARGETNAME None matching name in target table, used to name FITS files and generate thumbnail images meta.id
CATNAME None supplied catalogue name meta.id
OBJID None unique ID number meta.id;meta.main
HES
name: HES | type: CatalogueTable | Heath Jones [javascript protected email address] | version 1 |
Candidate QSOs from the Hamburg/ESO Survey
Address this table as 6dfgs_fdr.HES
Name Unit Description UCD (hover for description)
Name Unit Description UCD
MAG_2 mag supplied magnitude 2 phot.mag
PROGID None programme ID meta.id
MAG_1 mag supplied magnitude 1 phot.mag
PRIORITY None survey weight meta.code.class
DEC degrees Dec J2000 pos.eq.dec
RA degrees RA J2000 pos.eq.ra
TARGETID None matching ID number in target meta.id.cross
TARGETNAME None matching name in target table, used to name FITS files and generate thumbnail images meta.id
CATNAME None supplied catalogue name meta.id
OBJID None unique ID number meta.id;meta.main
NVSS
name: NVSS | type: CatalogueTable | Heath Jones [javascript protected email address] | version 1 |
Candidate QSOs from NVSS
Address this table as 6dfgs_fdr.NVSS
Name Unit Description UCD (hover for description)
Name Unit Description UCD
MAG_2 mag supplied magnitude 2 phot.mag
PROGID None programme ID meta.id
MAG_1 mag supplied magnitude 1 phot.mag
PRIORITY None survey weight meta.code.class
DEC degrees Dec J2000 pos.eq.dec
RA degrees RA J2000 pos.eq.ra
TARGETID None matching ID number in target meta.id.cross
TARGETNAME None matching name in target table, used to name FITS files and generate thumbnail images meta.id
CATNAME None supplied catalogue name meta.id
OBJID None unique ID number meta.id;meta.main
SUMSS
name: SUMSS | type: CatalogueTable | Heath Jones [javascript protected email address] | version 1 |
Bright radio sources from SUMSS
Address this table as 6dfgs_fdr.SUMSS
Name Unit Description UCD (hover for description)
Name Unit Description UCD
MAG_2 mag supplied magnitude 2 phot.mag
PROGID None programme ID meta.id
MAG_1 mag supplied magnitude 1 phot.mag
PRIORITY None survey weight meta.code.class
DEC degrees Dec J2000 pos.eq.dec
RA degrees RA J2000 pos.eq.ra
TARGETID None matching ID number in target meta.id.cross
TARGETNAME None matching name in target table, used to name FITS files and generate thumbnail images meta.id
CATNAME None supplied catalogue name meta.id
OBJID None unique ID number meta.id;meta.main
TWOMASS
name: TWOMASS | type: CatalogueTable | Heath Jones [javascript protected email address] | version 1 |
2MASS input catalogue J, H and K
Address this table as 6dfgs_fdr.TWOMASS
Name Unit Description UCD (hover for description)
Name Unit Description UCD
RTOT arcsec radius of the total size of the galaxy phys.size.radius
KTOT mag K total magnitude phot.mag;em.IR.K
HTOT mag H total magnitude phot.mag;em.IR.H
JTOT mag J total magnitude phot.mag;em.IR.J
KEXT_K mag KEXT minus K (corrected) phot.mag;em.IR.K
K mag K magnitude (corrected) used for K selection phot.mag;em.IR.K
KEXT mag KEXT magnitude phot.mag;em.IR.K
H mag H magnitude (HEXT) used for H selection phot.mag;em.IR.H
J mag J magnitude (JEXT) used for J selection phot.mag;em.IR.J
CORR mag correction, based on MUK20FE, made to the isophotal magnitude K_M_K20FE to get a pseudo-total magnitude K phot.mag;em.IR.K;arith.factor
MUK20FE mag average surface brightness within the mu_K = 20mag/sq arcsec elliptical isophote (derived from K_M_K20FE, RADIUS and A_B) phot.mag.sb;stat.mean
A_B arcsec minor/major axis ratio fit to 3-sigma super-coadd isophote phys.size.axisRatio;meta.modelled
RADIUS arcsec 20mag/sq." isophotal K fiducial elliptical aperture semi-major axis phys.angSize.smajAxis
K_M_K20FE mag K 20mag/sq." isophotal fiducial elliptical aperture magnitude phot.mag;em.IR.K
H_M_K20FE mag H 20mag/sq." isophotal fiducial elliptical aperture magnitude phot.mag;em.IR.H
J_M_K20FE mag J 20mag/sq." isophotal fiducial elliptical aperture magnitude phot.mag;em.IR.J
MAG_2 mag supplied magnitude phot.mag
PROGID None programme ID meta.id
MAG_1 mag supplied magnitude phot.mag
PRIORITY None survey weight meta.code.class
DEC degrees Dec J2000 pos.eq.dec
RA degrees RA J2000 pos.eq.ra
TARGETID None matching ID number in target meta.id.cross
TARGETNAME None matching name in target table, used to name FITS files and generate thumbnail images meta.id
prevCATNAME None original catalogue name meta.id
CATNAME None 2MASS catalogue name meta.id
OBJID None unique ID number meta.id;meta.main
SUPERCOS
name: SUPERCOS | type: CatalogueTable | Heath Jones [javascript protected email address] | version 1 |
SuperCOSMOS bright galaxies Bj and R
Address this table as 6dfgs_fdr.SUPERCOS
Name Unit Description UCD (hover for description)
Name Unit Description UCD
COMMENT None SuperCOSMOS reference (field no. + B_index + R_index) meta.note
MAG_2 mag R magnitude, SuperCOSMOS magnitudes generated from a revised calibration, done at the time of input catalogue preparation, tuned to the magnitude range of interest. phot.mag
PROGID None programme ID meta.id
MAG_1 mag Bj magnitude, SuperCOSMOS magnitudes generated from a revised calibration, done at the time of input catalogue preparation, tuned to the magnitude range of interest. phot.mag
PRIORITY None survey weight meta.code.class
DEC degrees Dec J2000 pos.eq.dec
RA degrees RA J2000 pos.eq.ra
TARGETID None matching ID number in target meta.id.cross
TARGETNAME None matching name in target table, used to name FITS files and generate thumbnail images meta.id
CATNAME None supplied catalogue name meta.id
OBJID None unique ID number meta.id;meta.mainmeta.id;meta.main
supplementary
name: supplementary | type: CatalogueGroup | Heath Jones [javascript protected email address] | version 1 |
Additional tables produced as part of 6dfgs
Data Central Generated
name: dc_generated | type: CatalogueGroup | Data Central [javascript protected email address] | version 1 |
Additional tables created by Data Central
dc_source_list
name: dc_source_list | type: CatalogueTable | Data Central [javascript protected email address] | version 1 |
Source list of all objects contained within 6dFGS
Address this table as 6dfgs_fdr.dc_source_list
Name Unit Description UCD (hover for description)
Name Unit Description UCD
dec degrees master Dec J2000 (decimal degrees) pos.eq.dec
ra degrees master RA J2000 (decimal degrees) pos.eq.ra
source_name None unique ID used for identifying sources meta.id;meta.main
AAT
name: AAT | type: SpectraFacility |
All 6dFGS spectra obtained at the AAT.
1D Spectrum
name: spectrum_1d | type: SpectrumDataProduct | Heath Jones [javascript protected email address] | version 1.0 |
Reduced 1D spectrum
1D Spectrum
name: spectrum_1d_table | type: SpectrumDataProduct | Heath Jones [javascript protected email address] | version 1.0 |
Reduced 1D spectrum
GAMA 
name: gama | type: Survey | Simon Driver [javascript protected email address] | website | docs |

GAMA is a project to exploit the latest generation of ground-based and space-borne survey facilities to study cosmology and galaxy formation and evolution.

At the heart of this project lies the GAMA spectroscopic survey of ~300,000 galaxies down to r < 19.8 mag over ~286 deg2, carried out using the AAOmega multi-object spectrograph on the Anglo-Australian Telescope (AAT) by the GAMA team. This project was awarded 210 nights over 7 years (2008–2014) and the observations are now completed. This survey builds on, and is augmented by, previous spectroscopic surveys such as the Sloan Digital Sky Survey (SDSS), the 2dF Galaxy Redshift Survey(2dFGRS) and the Millennium Galaxy Catalogue (MGC).

Panchromatic Data Release
name: pdr | type: DataRelease | ingested: 24 Nov 2020, 1:19 p.m. | Simon Driver [javascript protected email address] | version 1.0 |
WISE
name: WISE | type: ImagingFacility |
Description is not available for WISE.
W2
name: W2 | type: ImagingBand |
Description is not available for W2.
Name Approx Central RA Approx Central Dec Frame Equinox Fits Header
g23 344.9998 -32.4999 icrs j2000 View
g15 217.3749 0.2501 icrs j2000 View
g12 179.8749 -0.2499 icrs j2000 View
g09 135.1249 0.2501 icrs j2000 View
W1
name: W1 | type: ImagingBand |
Description is not available for W1.
Name Approx Central RA Approx Central Dec Frame Equinox Fits Header
g23 344.9998 -32.4999 icrs j2000 View
g15 217.3749 0.2501 icrs j2000 View
g12 179.8749 -0.2499 icrs j2000 View
g09 135.1249 0.2501 icrs j2000 View
W3
name: W3 | type: ImagingBand |
Description is not available for W3.
Name Approx Central RA Approx Central Dec Frame Equinox Fits Header
g23 344.9998 -32.4999 icrs j2000 View
g15 217.3749 0.2501 icrs j2000 View
g12 179.8749 -0.2499 icrs j2000 View
g09 135.1249 0.2501 icrs j2000 View
W4
name: W4 | type: ImagingBand |
Description is not available for W4.
Name Approx Central RA Approx Central Dec Frame Equinox Fits Header
g23 344.9998 -32.4999 icrs j2000 View
g15 217.3749 0.2501 icrs j2000 View
g12 179.8749 -0.2499 icrs j2000 View
g09 135.1249 0.2501 icrs j2000 View
VST
name: VSTKiDS | type: ImagingFacility |
Description is not available for VST.
g
name: g | type: ImagingBand |
Description is not available for g.
Name Approx Central RA Approx Central Dec Frame Equinox Fits Header
g23 345.0000 -32.5000 icrs j2000 View
g15 217.3750 0.2500 icrs j2000 View
g12 179.8750 -0.2500 icrs j2000 View