Gaia Source (gaiadr3.gaia_source_lite)

The table has 1811709824 rows, 52 columns.

Description

This table has an entry for every Gaia observed source as published with this data release. It contains the basic source parameters, in their final state as processed by the Gaia Data Processing and Analysis Consortium from the raw data coming from the spacecraft. The table is complemented with others containing information specific to certain kinds of objects (e.g.~Solar--system objects, non--single stars, variables etc.) and value--added processing (e.g.~astrophysical parameters etc.). Further array data types (spectra, epoch measurements) are presented separately via "Datalink" resources.

Attribution

If you have used Gaia data in your research, please use the following acknowledgement:

This work has made use of data from the European Space Agency (ESA) mission Gaia (https://www.cosmos.esa.int/gaia), processed by the Gaia Data Processing and Analysis Consortium (DPAC, https://www.cosmos.esa.int/web/gaia/dpac/consortium). Funding for the DPAC has been provided by national institutions, in particular the institutions participating in the Gaia Multilateral Agreement.

More information can be found on the credit and citation instructions page.

Columns

Name Type UCD Unit Description
source_id long meta.id
meta.main
meta.ref
Unique source identifier (unique within a particular Data Release)
random_index long meta.code Random index for use when selecting subsets
ra double pos.eq.ra
meta.main
deg Right ascension
dec double pos.eq.dec
meta.main
deg Declination
parallax double pos.parallax.trig mas Parallax
parallax_error float stat.error
pos.parallax.trig
mas Standard error of parallax
parallax_over_error float stat.snr
pos.parallax.trig
Parallax divided by its standard error
pmra double pos.pm
pos.eq.ra
mas.yr**-1 Proper motion in right ascension direction
pmra_error float stat.error
pos.pm
pos.eq.ra
mas.yr**-1 Standard error of proper motion in right ascension direction
pmdec double pos.pm
pos.eq.dec
mas.yr**-1 Proper motion in declination direction
pmdec_error float stat.error
pos.pm
pos.eq.dec
mas.yr**-1 Standard error of proper motion in declination direction
astrometric_params_solved short meta.number Which parameters have been solved for?
pseudocolour float em.wavenumber um**-1 Astrometrically estimated pseudocolour of the source
pseudocolour_error float stat.error
em.wavenumber
um**-1 Standard error of the pseudocolour of the source
ipd_frac_multi_peak short stat.value Percent of successful-IPD windows with more than one peak
ipd_frac_odd_win short stat.value Percent of transits with truncated windows or multiple gate
ruwe float stat.error Renormalised unit weight error
phot_g_mean_flux_over_error float stat.snr
phot.flux
em.opt
G-band mean flux divided by its error
phot_g_mean_mag float phot.mag
em.opt
mag G-band mean magnitude
phot_bp_mean_flux_over_error float stat.snr
phot.flux
em.opt.B
Integrated BP mean flux divided by its error
phot_bp_mean_mag float phot.mag
em.opt.B
mag Integrated BP mean magnitude
phot_rp_mean_flux_over_error float stat.snr
phot.flux
em.opt.R
Integrated RP mean flux divided by its error
phot_rp_mean_mag float phot.mag
em.opt.R
mag Integrated RP mean magnitude
phot_bp_rp_excess_factor float arith.factor
phot.flux
em.opt
BP/RP excess factor
bp_rp float phot.color
em.opt.B
em.opt.R
mag BP - RP colour
radial_velocity float spect.dopplerVeloc.opt
em.opt.I
km.s**-1 Radial velocity
radial_velocity_error float stat.error
spect.dopplerVeloc.opt
em.opt.I
km.s**-1 Radial velocity error
rv_nb_transits short meta.number Number of transits used to compute the radial velocity
rv_expected_sig_to_noise float stat.snr Expected signal to noise ratio in the combination of the spectra used to obtain the radial velocity
rv_renormalised_gof float stat.fit.goodness Radial velocity renormalised goodness of fit
rv_chisq_pvalue float stat.fit.param P-value for constancy based on a chi-squared criterion
phot_variable_flag char meta.code
src.var
Photometric variability flag
l double pos.galactic.lon deg Galactic longitude
b double pos.galactic.lat deg Galactic latitude
in_qso_candidates boolean meta.code.status Flag indicating the availability of additional information in the QsoCandidates table
in_galaxy_candidates boolean meta.code.status Flag indicating the availability of additional information in the GalaxyCandidates table
non_single_star short meta.code.status Flag indicating the availability of additional information in the various Non-Single Star tables
has_xp_continuous boolean meta.code.status Flag indicating the availability of mean BP/RP spectrum in continuous representation for this source
has_xp_sampled boolean meta.code.status Flag indicating the availability of mean BP/RP spectrum in sampled form for this source
has_rvs boolean meta.code.status Flag indicating the availability of mean RVS spectrum for this source
has_epoch_photometry boolean meta.code.status Flag indicating the availability of epoch photometry for this source
has_epoch_rv boolean meta.code.status Flag indicating the availability of epoch radial velocity for this source
has_mcmc_gspphot boolean meta.code.status Flag indicating the availability of GSP-Phot MCMC samples for this source
has_mcmc_msc boolean meta.code.status Flag indicating the availability of MSC MCMC samples for this source
in_andromeda_survey boolean meta.code.status Flag indicating that the source is present in the Gaia Andromeda Photometric Survey (GAPS)
teff_gspphot float phys.temperature.effective K Effective temperature from GSP-Phot Aeneas best library using BP/RP spectra
logg_gspphot float phys.gravity log(cm.s**-2) Surface gravity from GSP-Phot Aeneas best library using BP/RP spectra
mh_gspphot float phys.abund.Z "dex" Iron abundance from GSP-Phot Aeneas best library using BP/RP spectra
distance_gspphot float pos.distance
pos.eq
pc Distance from GSP-Phot Aeneas best library using BP/RP spectra
ag_gspphot float phys.absorption
em.opt
mag Extinction in G band from GSP-Phot Aeneas best library using BP/RP spectra
ebpminrp_gspphot float phot.color.excess mag Reddening E(G<sub>BP</sub> - G<sub>RP</sub>) from GSP-Phot Aeneas best library using BP/RP spectra
pos char