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Table: gaia_edr3.gaia_source
(The bold columns are indexed columns)
Column NameDescriptionDatatype
astrometric_chi2_alAL chi-square value Astrometric goodness-of-fit (χ2)DOUBLE
astrometric_excess_noiseExcess noise of the source Angle[mas]DOUBLE
astrometric_excess_noise_sigSignificance of excess noiseDOUBLE
astrometric_gof_alGoodness of fit statistic of model wrt along-scan observations Values exceeding, say, +3 thus indicate a bad fit to the data.DOUBLE
astrometric_matched_transitsMatched FOV transits used in the AGIS solutionSMALLINT
astrometric_n_bad_obs_alNumber of bad observations ALSMALLINT
astrometric_n_good_obs_alNumber of good observations ALSMALLINT
astrometric_n_obs_acTotal number of observations ACSMALLINT
astrometric_n_obs_alTotal number of observations ALSMALLINT
astrometric_params_solvedWhich parameters have been solved for [byte]SMALLINT
astrometric_primary_flagPrimary or secondarySMALLINT
astrometric_sigma5d_maxMatched FOV transits used in the AGIS solutionDOUBLE
bGalactic latitude Angle[deg]DOUBLE
bp_gBP - G colour Magnitude[mag]DOUBLE
bp_rpBP - RP colour Magnitude[mag]DOUBLE
decDeclination Angle[deg]DOUBLE
dec_errorStandard error of declination Angle[mas]DOUBLE
dec_parallax_corrCorrelation between declination and parallax [-1,+1]DOUBLE
dec_pmdec_corrCorrelation between declination and proper motion in declination [-1,+1]DOUBLE
dec_pmra_corrCorrelation between declination and proper motion in right ascension [-1,+1]DOUBLE
dec_pseudocolour_corrCorrelation between declination and pseudocolour [-1,+1]DOUBLE
designationUnique source designation (unique across all Data Releases)VARCHAR(n)
dr2_radial_velocityRadial velocity from Gaia DR2 [km/s]DOUBLE
dr2_radial_velocity_errorRadial velocity error from Gaia DR2 Velocity[km/s]DOUBLE
dr2_rv_nb_transitsNumber of transits used to compute radial velocity in Gaia DR2SMALLINT
dr2_rv_template_fe_hFe/H of the template used to compute radial velocity in Gaia DR2 Abundances[dex]REAL
dr2_rv_template_logglogg of the template used to compute radial velocity in Gaia DR2 GravitySurface[log cgs]REAL
dr2_rv_template_teffTeff of the template used to compute radial velocity in Gaia DR2 Temperature[K]REAL
duplicated_sourceSource with multiple source identifiersSMALLINT
ecl_latEcliptic latitude Angle[deg]DOUBLE
ecl_lonEcliptic longitude Angle[deg]DOUBLE
elatEcliptic lattitude autogenerated Data LabDOUBLE
elonEcliptic longitude autogenerated Data LabDOUBLE
g_rpG - RP colour Magnitude[mag]DOUBLE
glatGalactic lattitude autogenerated Data LabDOUBLE
glonGalactic longitude autogenerated Data LabDOUBLE
htm9HTM index (order 9 => ~10 arcmin size)INTEGER
ipd_frac_multi_peakPercent of successful-IPD windows with more than one peakSMALLINT
ipd_frac_odd_winPercent of transits with truncated windows or multiple gateSMALLINT
ipd_gof_harmonic_amplitudeAmplitude of the IPD GoF versus position angle of scanDOUBLE
ipd_gof_harmonic_phasePhase of the IPD GoF versus position angle of scan Angle[deg]DOUBLE
lGalactic longitude Angle[deg]DOUBLE
matched_transitsThe number of transits matched to this sourceSMALLINT
matched_transits_removedThe number of transits removed from an existing source in the current cycleSMALLINT
nest4096HEALPIX index (Nsides 4096, Nest scheme => ~52 arcsec sizeINTEGER
new_matched_transitsThe number of transits newly incorporated into an existing source in the current cycleSMALLINT
nu_eff_used_in_astrometryEffective wavenumber of the source used in the astrometric solution Misc[μ-1]DOUBLE
parallaxParallax Angle[mas]DOUBLE
parallax_errorStandard error of Parallax Angle[mas]DOUBLE
parallax_over_errorStandard error of parallax Angle[mas]DOUBLE
parallax_pmdec_corrCorrelation between parallax and proper motion in declination [-1,+1]DOUBLE
parallax_pmra_corrCorrelation between parallax and proper motion in right ascension [-1,+1]DOUBLE
parallax_pseudocolour_corrCorrelation between parallax and pseudocolour [-1,+1]DOUBLE
phot_bp_mean_fluxIntegrated BP mean flux Flux[e-/s]DOUBLE
phot_bp_mean_flux_errorError on the integrated BP mean flux Flux[e-/s]DOUBLE
phot_bp_mean_flux_over_errorIntegrated BP mean flux divided by its errorDOUBLE
phot_bp_mean_magIntegrated BP mean magnitude Magnitude[mag]DOUBLE
phot_bp_n_blended_transitsNumber of BP blended transitsSMALLINT
phot_bp_n_contaminated_transitsNumber of BP contaminated transitsSMALLINT
phot_bp_n_obsNumber of observations contributing to BP photometrySMALLINT
phot_bp_rp_excess_factorBP/RP excess factorDOUBLE
phot_g_mean_fluxG-band mean flux Flux[e-/s]DOUBLE
phot_g_mean_flux_errorError on G-band mean flux Flux[e-/s]DOUBLE
phot_g_mean_flux_over_errorG-band mean flux divided by its errorDOUBLE
phot_g_mean_magG-band mean magnitude Magnitude[mag]DOUBLE
phot_g_n_obsNumber of observations contributing to G photometrySMALLINT
phot_proc_modePhotometry processing modeSMALLINT
phot_rp_mean_fluxIntegrated RP mean flux Flux[e-/s]DOUBLE
phot_rp_mean_flux_errorError on the integrated RP mean flux Flux[e-/s]DOUBLE
phot_rp_mean_flux_over_errorIntegrated RP mean flux divided by its errorDOUBLE
phot_rp_mean_magIntegrated RP mean magnitude Magnitude[mag]DOUBLE
phot_rp_n_blended_transitsNumber of RP blended transitsSMALLINT
phot_rp_n_contaminated_transitsNumber of RP contaminated transitsSMALLINT
phot_rp_n_obsNumber of observations contributing to RP photometrySMALLINT
pmTotal proper motion Angular Velocity[mas/year]DOUBLE
pmdecProper motion in declination direction Angular Velocity[mas/year]DOUBLE
pmdec_errorStandard error of proper motion in declination direction Angular Velocity[mas/year]DOUBLE
pmdec_pseudocolour_corrCorrelation between proper motion in declination and pseudocolour [-1,+1]DOUBLE
pmraProper motion in right ascension direction Angular Velocity[mas/year]DOUBLE
pmra_errorStandard error of proper motion in right ascension direction Angular Velocity[mas/year]DOUBLE
pmra_pmdec_corrCorrelation between proper motion in right ascension and proper motion in declination [-1,+1]DOUBLE
pmra_pseudocolour_corrCorrelation between proper motion in right asension and pseudocolour [-1,+1]DOUBLE
pseudocolourAstrometrically estimated pseudocolour of the source Misc[μ-1]DOUBLE
pseudocolour_errorStandard error of the pseudocolour of the source Misc[μ-1]DOUBLE
raBarycentric right ascension α of the source in ICRS at the reference epoch ref_epochDOUBLE
ra_dec_corrCorrelation between right ascension and declination [-1,+1]DOUBLE
ra_errorStandard error of the right ascension of the source in ICRS at the reference epoch ref_epoch.DOUBLE
ra_parallax_corrCorrelation between right ascension and parallax [-1,+1]DOUBLE
ra_pmdec_corrCorrelation between right ascension and proper motion in declination [-1,+1]DOUBLE
ra_pmra_corrCorrelation between right ascension and proper motion in right ascension [-1,+1]DOUBLE
ra_pseudocolour_corrCorrelation between right ascension and pseudocolour [-1,+1]DOUBLE
random_idRandom ID in the range 0.0 => 100.0 (not unique)REAL
random_indexRandom index used to select subsetsINTEGER
ref_epochReference epoch Time[Julian Years]REAL
ring256HEALPIX index (Nsides 256, Ring scheme => ~14 arcmin size)INTEGER
ruweRenormalised unit weight errorDOUBLE
scan_direction_mean_k1Mean position angle of scan directions across the sourceDOUBLE
scan_direction_mean_k2Mean position angle of scan directions across the sourceDOUBLE
scan_direction_mean_k3Mean position angle of scan directions across the sourceDOUBLE
scan_direction_mean_k4Mean position angle of scan directions across the sourceDOUBLE
scan_direction_strength_k1Degree of concentration of scan directions across the sourceDOUBLE
scan_direction_strength_k2Degree of concentration of scan directions across the sourceDOUBLE
scan_direction_strength_k3Degree of concentration of scan directions across the sourceDOUBLE
scan_direction_strength_k4Degree of concentration of scan directions across the sourceDOUBLE
solution_idSolution Identifier. To decode a given solution ID visit https://gaia.esac.esa.int/decoder/solnDecoder.jspBIGINT
source_idUnique source identifier (unique within a particular Data Release)BIGINT
visibility_periods_usedNumber of visibility periods used in Astrometric solutionSMALLINT


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