TABLE gaia_source

Contains the parameters provided for each source in Gaia Early Data Release 3.

Main Gaia catalogue containing astrometric and photometric information
for each source. The table has an entry for every Gaia observed source as
listed in the Main Database accumulating catalogue version from which the
catalogue release has been generated. It contains the basic source parameters,
that is only final data (no epoch data) and no spectra (neither final nor epoch).

Required constraints:
Primary key is (source_id)

Name Type Length Unit Description Default Value Unified Content Descriptor

solution_id bigint 8 Solution identifier meta.id;meta.version

designation char 32 Unique source designation (unique across all Data Releases) meta.id;meta.main

source_id bigint 8 Unique source identifier (unique within a particular Data Release) meta.id

random_index bigint 8 Random index used to select subsets meta.code

ref_epoch real 4 Julian years Reference epoch meta.ref;time.epoch

ra float 8 degrees Celestial Right Ascension pos.eq.ra;meta.main

ra_error float 8 milliarcsec Standard error of Right Ascension stat.error;pos.eq.ra

dec float 8 degrees Celestial Declination pos.eq.dec;meta.main

dec_error float 8 milliarcsec Standard error of Declination stat.error;pos.eq.dec

parallax float 8 milliarcsec Parallax pos.parallax

parallax_error float 8 milliarcsec Standard error of parallax stat.error;pos.parallax

parallax_over_error real 4 Parallax divided by standard error arith.ratio

pm real 4 milliarcsec/year Total proper motion pos.pm;pos.eq

pmra float 8 milliarcsec/year Proper motion in Right Ascension direction pos.pm;.pos.eq.ra

pmra_error real 4 milliarcsec/year Error of proper motion in Right Ascension direction stat.error;pos.pm;.pos.eq.ra

pmdec float 8 milliarcsec/year Proper motion in Declination direction pos.pm;.pos.eq.dec

pmdec_error real 4 milliarcsec/year Error of proper motion in Declination direction stat.error;pos.pm;.pos.eq.dec

ra_dec_corr real 4 Correlation between Right Ascension and Declination stat.correlation;pos.eq.ra;pos.eq.dec

ra_parallax_corr real 4 Correlation between Right Ascension and parallax stat.correlation;pos.eq.ra;pos.parallax

ra_pmra_corr real 4 Correlation between Right Ascension and proper motion in Right Ascension stat.correlation;pos.eq.ra;pos.pm;pos.eq.ra

ra_pmdec_corr real 4 Correlation between Right Ascension and proper motion in Declination stat.correlation;pos.eq.ra;pos.pm;pos.eq.dec

dec_parallax_corr real 4 Correlation between Declination and parallax stat.correlation;pos.eq.dec;pos.parallax

dec_pmra_corr real 4 Correlation between Declination and proper motion in Right Ascension stat.correlation;pos.eq.dec;pos.pm;pos.eq.ra

dec_pmdec_corr real 4 Correlation between Declination and proper motion in Declination stat.correlation;pos.eq.dec;pos.pm;pos.eq.dec

parallax_pmra_corr real 4 Correlation between parallax and proper motion in Right Ascension stat.correlation;pos.parallax;pos.pm;pos.eq.ra

parallax_pmdec_corr real 4 Correlation between parallax and proper motion in Declination stat.correlation;pos.parallax;pos.pm;pos.eq.dec

pmra_pmdec_corr real 4 Correlation between proper motion in Right Ascension and proper motion in Declination stat.correlation;pos.pm;pos.eq.ra;pos.pm;pos.eq.dec

astrometric_n_obs_al smallint 2 Total number of observations in the Along-Scan direction meta.number

astrometric_n_obs_ac smallint 2 Total number of observations in the Across-Scan direction meta.number

astrometric_n_good_obs_al smallint 2 Number of good observations in the Along-Scan direction meta.number

astrometric_n_bad_obs_al smallint 2 Number of bad observations in the Along-Scan direction meta.number

astrometric_gof_al real 4 Goodness of fit statistic of model wrt Along-Scan observations stat.fit.goodness

astrometric_chi2_al real 4 Along-Scan chi-square value stat.fit.chi2

astrometric_excess_noise real 4 milliarcsec Excess noise of the source stat.value

astrometric_excess_noise_sig real 4 Significance of the excess noise stat.value

astrometric_params_solved tinyint 1 Which parameters have been solved for? meta.number

astrometric_primary_flag tinyint 1 Primary or secondary meta.code.status

nu_eff_used_in_astrometry real 4 micron^-1 Effective wavenumber of the source used in the astrometric solution em.wavenumber

pseudocolour real 4 micron^-1 Astrometrically determined pseudocolour of the source em.wavenumber

pseudocolour_error real 4 micron^-1 STandard error of the pseudocolour of the source em.wavenumber

ra_pseudocolour_corr real 4 Correlation between right ascension and pseudocolour stat.correlation;em.wavenumber;pos.eq.ra

dec_pseudocolour_corr real 4 Correlation between declination and pseudocolour stat.correlation;em.wavenumber;pos.eq.dec

parallax_pseudocolour_corr real 4 Correlation between parallax and pseudocolour stat.correlation;em.wavenumber;pos.parallax

pmra_pseudocolour_corr real 4 Correlation between proper motion in right ascension and pseudocolour stat.correlation;em.wavenumber;pos.pm;pos.eq.ra

pmdec_pseudocolour_corr real 4 Correlation between proper motion in declination and pseudocolour stat.correlation;em.wavenumber;pos.pm;pos.eq.dec

astrometric_matched_transits smallint 2 Matched FoV transits used in the AGIS solution meta.number

visibility_periods_used smallint 2 Number of visibility periods uased in the astrometric solution meta.number

astrometric_sigma_5d_max real 4 mas The longest semi-major axis of the 5d error ellipsoid pos.errorEllipse;stat.max

matched_transits smallint 2 The number of transits matched to this source meta.number

new_matched_transits smallint 2 The number of transits newly incorporated into an existing source in the current cycle meta.number

matched_transits_removed smallint 2 The number of transits removed from an existing source in the current cycle meta.number

ipd_gof_harmonic_amplitude real 4 Amplitude of the IPD GoF versus position angle of the scan stat.value

ipd_gof_harmonic_phase real 4 degrees Phase of the IPD GoF versus position angle of the scan pos.posAng;stat.value

ipd_frac_multi_peak tinyint 1 Percentage of successful IPD windows with more than one peak stat.value

ipd_frac_odd_win tinyint 1 Percentage of transits with truncated windows or multiple gate stat.value

ruwe real 4 Renormalised unit weight error stat.value

scan_direction_strength_k1 real 4 Degree of concentration of scan directions across the source stat.value

scan_direction_strength_k2 real 4 Degree of concentration of scan directions across the source stat.value

scan_direction_strength_k3 real 4 Degree of concentration of scan directions across the source stat.value

scan_direction_strength_k4 real 4 Degree of concentration of scan directions across the source stat.value

scan_direction_mean_k1 real 4 degrees Mean position angle of scan directions across the source pos.posAng;stat.mean

scan_direction_mean_k2 real 4 degrees Mean position angle of scan directions across the source pos.posAng;stat.mean

scan_direction_mean_k3 real 4 degrees Mean position angle of scan directions across the source pos.posAng;stat.mean

scan_direction_mean_k4 real 4 degrees Mean position angle of scan directions across the source pos.posAng;stat.mean

duplicated_source tinyint 1 Source with duplicated sources meta.code.status

phot_g_n_obs smallint 2 Number of observations contributing to G band photometry meta.number

phot_g_mean_flux float 8 electrons/s G-band mean flux phot.flux;stat.mean;em.opt

phot_g_mean_flux_error real 4 electrons/s Error on G-band mean flux stat.error;phot.flux;stat.mean;em.opt

phot_g_mean_flux_over_error real 4 G-band mean flux divided by its standard error arith.ratio

phot_g_mean_mag real 4 mag G-band mean magnitude phot.mag;stat.mean;em.opt

phot_bp_n_obs smallint 2 Number of observations contributing to BP photometry meta.number

phot_bp_mean_flux float 8 electrons/s Integrated BP mean flux phot.flux;stat.mean

phot_bp_mean_flux_error real 4 electrons/s Standard error on the integrated BP mean flux stat.error;phot.flux;stat.mean

phot_bp_mean_flux_over_error real 4 Integrated mean BP flux divided by its standard error arith.ratio

phot_bp_mean_mag real 4 mag Integrated BP mean magnitude phot.mag;stat.mean

phot_rp_n_obs smallint 2 Number of observations contributing to RP photometry meta.number

phot_rp_mean_flux float 8 electrons/s Integrated RP mean flux phot.flux;stat.mean

phot_rp_mean_flux_error real 4 electrons/s Standard error on the integrated RP mean flux stat.error;phot.flux;stat.mean

phot_rp_mean_flux_over_error real 4 Integrated mean RP flux divided by its standard error arith.ratio

phot_rp_mean_mag real 4 mag Integrated RP mean magnitude phot.mag;stat.mean

phot_bp_n_contaminated_transits smallint 2 Number of BP contaminated transits meta.number

phot_bp_n_blended_transits smallint 2 Number of BP blended transits meta.number

phot_rp_n_contaminated_transits smallint 2 Number of RP contaminated transits meta.number

phot_rp_n_blended_transits smallint 2 Number of RP blended transits meta.number

phot_proc_mode tinyint 1 Photometry processing mode meta.code

phot_bp_rp_excess_factor real 4 Combined BP and RP excess factor arith.factor;phot.flux;em.opt

bp_rp real 4 mag BP-RP colour phot.colour

bp_g real 4 mag BP-G colour phot.colour

g_rp real 4 mag G-RP colour phot.colour

dr2_radial_velocity real 4 km/s Radial velocity from Gaia DR2 spect.dopplerVeloc.opt

dr2_radial_velocity_error real 4 km/s Standard error on the radial velocity from Gaia DR2 stat.error;spect.dopplerVeloc.opt

dr2_rv_nb_transits smallint 2 Number of transits used to compute the radial velocity in Gaia DR2 meta.number

dr2_rv_template_teff real 4 K Teff of the template used to compute radial velocity in Gaia DR2 stat.fit.param

dr2_rv_template_logg real 4 log cgs log g of the template used to compute the radial velocity in Gaia DR2 stat.fit.param

dr2_rv_template_fe_h real 4 dex Fe/H of the template used to compute radial velocity in Gaia DR2 stat.fit.param

l float 8 degrees Galactic longitude pos.galactic.lon

b float 8 degrees Galactic latitude pos.galactic.lat

ecl_lon float 8 degrees Ecliptic longitude pos.ecliptic.lon

ecl_lat float 8 degrees Ecliptic latitude pos.ecliptic.lat

cx float 8 unit vector of spherical co-ordinates pos.distance;pos.cartesian.x

cy float 8 unit vector of spherical co-ordinates pos.distance;pos.cartesian.y

cz float 8 unit vector of spherical co-ordinates pos.distance;pos.cartesian.z

htmID bigint 8 Hierarchical Triangular Mesh (HTM) index, 20 deep, for equatorial co-ordinates pos.eq

Total length 476

Name	Type	Length	Unit	Description	Unified Content Descriptor
solution_id	bigint	8		Solution identifier	meta.id;meta.version
designation	char	32		Unique source designation (unique across all Data Releases)	meta.id;meta.main
source_id	bigint	8		Unique source identifier (unique within a particular Data Release)	meta.id
random_index	bigint	8		Random index used to select subsets	meta.code
ref_epoch	real	4	Julian years	Reference epoch	meta.ref;time.epoch
ra	float	8	degrees	Celestial Right Ascension	pos.eq.ra;meta.main
ra_error	float	8	milliarcsec	Standard error of Right Ascension	stat.error;pos.eq.ra
dec	float	8	degrees	Celestial Declination	pos.eq.dec;meta.main
dec_error	float	8	milliarcsec	Standard error of Declination	stat.error;pos.eq.dec
parallax	float	8	milliarcsec	Parallax	pos.parallax
parallax_error	float	8	milliarcsec	Standard error of parallax	stat.error;pos.parallax
parallax_over_error	real	4		Parallax divided by standard error	arith.ratio
pm	real	4	milliarcsec/year	Total proper motion	pos.pm;pos.eq
pmra	float	8	milliarcsec/year	Proper motion in Right Ascension direction	pos.pm;.pos.eq.ra
pmra_error	real	4	milliarcsec/year	Error of proper motion in Right Ascension direction	stat.error;pos.pm;.pos.eq.ra
pmdec	float	8	milliarcsec/year	Proper motion in Declination direction	pos.pm;.pos.eq.dec
pmdec_error	real	4	milliarcsec/year	Error of proper motion in Declination direction	stat.error;pos.pm;.pos.eq.dec
ra_dec_corr	real	4		Correlation between Right Ascension and Declination	stat.correlation;pos.eq.ra;pos.eq.dec
ra_parallax_corr	real	4		Correlation between Right Ascension and parallax	stat.correlation;pos.eq.ra;pos.parallax
ra_pmra_corr	real	4		Correlation between Right Ascension and proper motion in Right Ascension	stat.correlation;pos.eq.ra;pos.pm;pos.eq.ra
ra_pmdec_corr	real	4		Correlation between Right Ascension and proper motion in Declination	stat.correlation;pos.eq.ra;pos.pm;pos.eq.dec
dec_parallax_corr	real	4		Correlation between Declination and parallax	stat.correlation;pos.eq.dec;pos.parallax
dec_pmra_corr	real	4		Correlation between Declination and proper motion in Right Ascension	stat.correlation;pos.eq.dec;pos.pm;pos.eq.ra
dec_pmdec_corr	real	4		Correlation between Declination and proper motion in Declination	stat.correlation;pos.eq.dec;pos.pm;pos.eq.dec
parallax_pmra_corr	real	4		Correlation between parallax and proper motion in Right Ascension	stat.correlation;pos.parallax;pos.pm;pos.eq.ra
parallax_pmdec_corr	real	4		Correlation between parallax and proper motion in Declination	stat.correlation;pos.parallax;pos.pm;pos.eq.dec
pmra_pmdec_corr	real	4		Correlation between proper motion in Right Ascension and proper motion in Declination	stat.correlation;pos.pm;pos.eq.ra;pos.pm;pos.eq.dec
astrometric_n_obs_al	smallint	2		Total number of observations in the Along-Scan direction	meta.number
astrometric_n_obs_ac	smallint	2		Total number of observations in the Across-Scan direction	meta.number
astrometric_n_good_obs_al	smallint	2		Number of good observations in the Along-Scan direction	meta.number
astrometric_n_bad_obs_al	smallint	2		Number of bad observations in the Along-Scan direction	meta.number
astrometric_gof_al	real	4		Goodness of fit statistic of model wrt Along-Scan observations	stat.fit.goodness
astrometric_chi2_al	real	4		Along-Scan chi-square value	stat.fit.chi2
astrometric_excess_noise	real	4	milliarcsec	Excess noise of the source	stat.value
astrometric_excess_noise_sig	real	4		Significance of the excess noise	stat.value
astrometric_params_solved	tinyint	1		Which parameters have been solved for?	meta.number
astrometric_primary_flag	tinyint	1		Primary or secondary	meta.code.status
nu_eff_used_in_astrometry	real	4	micron^-1	Effective wavenumber of the source used in the astrometric solution	em.wavenumber
pseudocolour	real	4	micron^-1	Astrometrically determined pseudocolour of the source	em.wavenumber
pseudocolour_error	real	4	micron^-1	STandard error of the pseudocolour of the source	em.wavenumber
ra_pseudocolour_corr	real	4		Correlation between right ascension and pseudocolour	stat.correlation;em.wavenumber;pos.eq.ra
dec_pseudocolour_corr	real	4		Correlation between declination and pseudocolour	stat.correlation;em.wavenumber;pos.eq.dec
parallax_pseudocolour_corr	real	4		Correlation between parallax and pseudocolour	stat.correlation;em.wavenumber;pos.parallax
pmra_pseudocolour_corr	real	4		Correlation between proper motion in right ascension and pseudocolour	stat.correlation;em.wavenumber;pos.pm;pos.eq.ra
pmdec_pseudocolour_corr	real	4		Correlation between proper motion in declination and pseudocolour	stat.correlation;em.wavenumber;pos.pm;pos.eq.dec
astrometric_matched_transits	smallint	2		Matched FoV transits used in the AGIS solution	meta.number
visibility_periods_used	smallint	2		Number of visibility periods uased in the astrometric solution	meta.number
astrometric_sigma_5d_max	real	4	mas	The longest semi-major axis of the 5d error ellipsoid	pos.errorEllipse;stat.max
matched_transits	smallint	2		The number of transits matched to this source	meta.number
new_matched_transits	smallint	2		The number of transits newly incorporated into an existing source in the current cycle	meta.number
matched_transits_removed	smallint	2		The number of transits removed from an existing source in the current cycle	meta.number
ipd_gof_harmonic_amplitude	real	4		Amplitude of the IPD GoF versus position angle of the scan	stat.value
ipd_gof_harmonic_phase	real	4	degrees	Phase of the IPD GoF versus position angle of the scan	pos.posAng;stat.value
ipd_frac_multi_peak	tinyint	1		Percentage of successful IPD windows with more than one peak	stat.value
ipd_frac_odd_win	tinyint	1		Percentage of transits with truncated windows or multiple gate	stat.value
ruwe	real	4		Renormalised unit weight error	stat.value
scan_direction_strength_k1	real	4		Degree of concentration of scan directions across the source	stat.value
scan_direction_strength_k2	real	4		Degree of concentration of scan directions across the source	stat.value
scan_direction_strength_k3	real	4		Degree of concentration of scan directions across the source	stat.value
scan_direction_strength_k4	real	4		Degree of concentration of scan directions across the source	stat.value
scan_direction_mean_k1	real	4	degrees	Mean position angle of scan directions across the source	pos.posAng;stat.mean
scan_direction_mean_k2	real	4	degrees	Mean position angle of scan directions across the source	pos.posAng;stat.mean
scan_direction_mean_k3	real	4	degrees	Mean position angle of scan directions across the source	pos.posAng;stat.mean
scan_direction_mean_k4	real	4	degrees	Mean position angle of scan directions across the source	pos.posAng;stat.mean
duplicated_source	tinyint	1		Source with duplicated sources	meta.code.status
phot_g_n_obs	smallint	2		Number of observations contributing to G band photometry	meta.number
phot_g_mean_flux	float	8	electrons/s	G-band mean flux	phot.flux;stat.mean;em.opt
phot_g_mean_flux_error	real	4	electrons/s	Error on G-band mean flux	stat.error;phot.flux;stat.mean;em.opt
phot_g_mean_flux_over_error	real	4		G-band mean flux divided by its standard error	arith.ratio
phot_g_mean_mag	real	4	mag	G-band mean magnitude	phot.mag;stat.mean;em.opt
phot_bp_n_obs	smallint	2		Number of observations contributing to BP photometry	meta.number
phot_bp_mean_flux	float	8	electrons/s	Integrated BP mean flux	phot.flux;stat.mean
phot_bp_mean_flux_error	real	4	electrons/s	Standard error on the integrated BP mean flux	stat.error;phot.flux;stat.mean
phot_bp_mean_flux_over_error	real	4		Integrated mean BP flux divided by its standard error	arith.ratio
phot_bp_mean_mag	real	4	mag	Integrated BP mean magnitude	phot.mag;stat.mean
phot_rp_n_obs	smallint	2		Number of observations contributing to RP photometry	meta.number
phot_rp_mean_flux	float	8	electrons/s	Integrated RP mean flux	phot.flux;stat.mean
phot_rp_mean_flux_error	real	4	electrons/s	Standard error on the integrated RP mean flux	stat.error;phot.flux;stat.mean
phot_rp_mean_flux_over_error	real	4		Integrated mean RP flux divided by its standard error	arith.ratio
phot_rp_mean_mag	real	4	mag	Integrated RP mean magnitude	phot.mag;stat.mean
phot_bp_n_contaminated_transits	smallint	2		Number of BP contaminated transits	meta.number
phot_bp_n_blended_transits	smallint	2		Number of BP blended transits	meta.number
phot_rp_n_contaminated_transits	smallint	2		Number of RP contaminated transits	meta.number
phot_rp_n_blended_transits	smallint	2		Number of RP blended transits	meta.number
phot_proc_mode	tinyint	1		Photometry processing mode	meta.code
phot_bp_rp_excess_factor	real	4		Combined BP and RP excess factor	arith.factor;phot.flux;em.opt
bp_rp	real	4	mag	BP-RP colour	phot.colour
bp_g	real	4	mag	BP-G colour	phot.colour
g_rp	real	4	mag	G-RP colour	phot.colour
dr2_radial_velocity	real	4	km/s	Radial velocity from Gaia DR2	spect.dopplerVeloc.opt
dr2_radial_velocity_error	real	4	km/s	Standard error on the radial velocity from Gaia DR2	stat.error;spect.dopplerVeloc.opt
dr2_rv_nb_transits	smallint	2		Number of transits used to compute the radial velocity in Gaia DR2	meta.number
dr2_rv_template_teff	real	4	K	Teff of the template used to compute radial velocity in Gaia DR2	stat.fit.param
dr2_rv_template_logg	real	4	log cgs	log g of the template used to compute the radial velocity in Gaia DR2	stat.fit.param
dr2_rv_template_fe_h	real	4	dex	Fe/H of the template used to compute radial velocity in Gaia DR2	stat.fit.param
l	float	8	degrees	Galactic longitude	pos.galactic.lon
b	float	8	degrees	Galactic latitude	pos.galactic.lat
ecl_lon	float	8	degrees	Ecliptic longitude	pos.ecliptic.lon
ecl_lat	float	8	degrees	Ecliptic latitude	pos.ecliptic.lat
cx	float	8		unit vector of spherical co-ordinates	pos.distance;pos.cartesian.x
cy	float	8		unit vector of spherical co-ordinates	pos.distance;pos.cartesian.y
cz	float	8		unit vector of spherical co-ordinates	pos.distance;pos.cartesian.z
htmID	bigint	8		Hierarchical Triangular Mesh (HTM) index, 20 deep, for equatorial co-ordinates	pos.eq
Total length		476