I/363ivo://CDS.VizieR/I/363CDSZhang L.Feng F.Rui Y.Xiao G.-Y.Wang W.2025-06-17T09:12:46Z2025-06-17T09:58:35ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frsurveysstellar-distancevisible-astronomyAccurate measurements of stellar positions and velocities are crucial for studying galactic and stellar dynamics. We aim to create a Cartesian catalog from Gaia DR3 to serve as a high-precision database for further research using stellar coordinates and velocities. To avoid the negative parallax values, we select 31129169 sources in Gaia DR3 with radial velocity, where the fractional parallax error is less than 20% (0<{sigma}_{varpi}_/{varpi}<0.2). To select the most accurate and efficient method of propagating mean and covariance, we use the Monte Carlo results with 107 samples (MC7) as the benchmark, and compare the precision of linear, second-order, and Monte Carlo error propagation methods. By assessing the accuracy of propagated mean and covariance, we observe that second-order error propagation exhibits mean deviations of at most 0.5% compared to MC7, with variance deviations of up to 10%. Overall, this outperforms linear transformation. Though the Monte Carlo method with 104 samples (MC4) is an order of magnitude slower than second-order error propagation, its covariance propagation accuracy reaches 1% when {sigma}_{varpi}/{varpi} is below 15%. Consequently, we employ second-order error propagation to convert the mean astrometry and radial velocity into Cartesian coordinates and velocities in both equatorial and galactic systems for 30 million Gaia sources, and apply MC4 for covariance propagation. The Cartesian catalog and source code are provided for future applications in high-precision stellar and galactic dynamics.2025RAA....25e5010Zhttps://cdsarc.cds.unistra.fr/viz-bin/cat/I/363CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/355 : Gaia DR3 Part 1. Main source (Gaia Collaboration, 2022)Byte-by-byte Description of file: catalog.samhttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=I/363https://vizier.iucaa.in/viz-bin/VizieR-2?-source=I/363http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=I/363https://vizier.cds.unistra.fr/viz-bin/votable?-source=I/363https://vizier.iucaa.in/viz-bin/votable?-source=I/363http://vizieridia.saao.ac.za/viz-bin/votable?-source=I/363GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table I/363/gaia_rv_dr3 (the catalog, as in VizieR version)https://vizier.cds.unistra.fr/viz-bin/conesearch/I/363/gaia_rv_dr3?https://vizier.iucaa.in/viz-bin/conesearch/I/363/gaia_rv_dr3?http://vizieridia.saao.ac.za/viz-bin/conesearch/I/363/gaia_rv_dr3?GETtext/xml+votable180.050000true104.595159690298255.6687326034470.0055555555555555560/0-11 6/https://cdsarc.cds.unistra.fr/viz-bin/moc/I/363?format=asciiOpticaldefaultI/363/gaia_rv_dr3the catalog, as in VizieR versionGaiaDR3Gaia DR3 source identifier (DR3_designation)meta.id;meta.mainindexedRA_ICRSRight ascension (ICRS) at Ep=2016.0degpos.eq.ra;meta.mainDE_ICRSDeclination (ICRS) at Ep=2016.0degpos.eq.dec;meta.mainreqtDistance in equatorial (ICRS) frame (r_eqt)pcpos.distancedoubleindexede_reqtUncertainty in reqt (r_eqt_error)pcstat.errordoubleVteqtTransverse velocity in ICRS frame (vt_eqt)km/sphys.velocdoubleindexede_VteqtUncertainty in vteqt (vt_eqt_error)km/sstat.errordoubleXeqtX position in ICRS (x_eqt)pcpos.distance;pos.cartesian.xdoublee_XeqtUncertainty in xeqt (x_eqt_error)pcstat.errordoubleXgalX position in Galactic frame (x_gal)pcpos.distance;pos.cartesian.x;pos.galacticdoubleindexede_XgalUncertainty in xgal (x_gal_error)pcstat.errordoubleYeqtY position in ICRS (y_eqt)pcpos.distance;pos.cartesian.ydoublee_YeqtUncertainty in yeqt (y_eqt_error)pcstat.errordoubleYgalY position in Galactic frame (y_gal)pcpos.distance;pos.cartesian.y;pos.galacticdoubleindexede_YgalUncertainty in ygal (y_gal_error)pcstat.errordoubleZeqtZ position in ICRS (z_eqt)pcpos.distance;pos.cartesian.zdoublee_ZeqtUncertainty in zeqt (z_eqt_error)pcstat.errordoubleZgalZ position in Galactic frame (z_gal)pcpos.distance;pos.cartesian.z;pos.galacticdoubleindexede_ZgalUncertainty in zgal (z_gal_error)pcstat.error;pos.distance;pos.cartesian.zdoubleVXeqtX velocity in ICRS (vx_eqt)km/sphys.veloc;pos.cartesian.xdoublee_VXeqtUncertainty in vxeqt (vx_eqt_error)km/sstat.errordoubleVXgalX velocity in Galactic frame (vx_gal)km/sphys.veloc;pos.cartesian.x;pos.galacticdoubleindexede_VXgalUncertainty in vxgal (vx_gal_error)km/sstat.errordoubleVYeqtY velocity in ICRS (vy_eqt)km/sphys.veloc;pos.cartesian.ydoublee_VYeqtUncertainty in vyeqt (vy_eqt_error)km/sstat.errordoubleVYgalY velocity in Galactic frame (vy_gal)km/sphys.veloc;pos.cartesian.y;pos.galacticdoubleindexede_VYgalUncertainty in vygal (vy_gal_error)km/sstat.errordoubleVZeqtZ velocity in ICRS (vz_eqt)km/sphys.veloc;pos.cartesian.zdoublee_VZeqtUncertainty in vzeqt (vz_eqt_error)km/sstat.errordoubleVZgalZ velocity in Galactic frame (vz_gal)km/sphys.veloc;src.redshift;pos.galacticdoubleindexede_VZgalUncertainty in vzgal (vz_gal_error)km/sstat.errordoubleX-YeqtCorCorrelation between x and y in ICRS (x_y_eqt_corr)stat.correlationdoubleX-YgalCorCorrelation between x and y in Galactic frame (x_y_gal_corr)stat.correlationdoubleX-ZeqtCorCorrelation between x and z in ICRS (x_z_eqt_corr)stat.correlationdoubleX-ZgalCorCorrelation between x and z in Galactic frame (x_z_gal_corr)stat.correlationdoubleX-VXeqtCorCorrelation between x and vx in ICRS (x_vx_eqt_corr)stat.correlationdoubleX-VXgalCorCorrelation between x and vx in Galactic frame (x_vx_gal_corr)stat.correlationdoubleX-VYeqtCorCorrelation between x and vy in ICRS (x_vy_eqt_corr)stat.correlationdoubleX-VYgalCorCorrelation between x and vy in Galactic frame (x_vy_gal_corr)stat.correlationdoubleX-VZeqtCorCorrelation between x and vz in ICRS (x_vz_eqt_corr)stat.correlationdoubleX-VZgalCorCorrelation between x and vz in Galactic frame (x_vz_gal_corr)stat.correlationdoubleY-ZeqtCorCorrelation between y and z in ICRS (y_z_eqt_corr)stat.correlationdoubleY-ZgalCorCorrelation between y and z in Galactic frame (y_z_gal_corr)stat.correlationdoubleY-VXeqtCorCorrelation between y and vx in ICRS (y_vx_eqt_corr)stat.correlationdoubleY-VXgalCorCorrelation between y and vx in Galactic frame (y_vx_gal_corr)stat.correlationdoubleY-VYeqtCorCorrelation between y and vy in ICRS (y_vy_eqt_corr)stat.correlationdoubleY-VYgalCorCorrelation between y and vy in Galactic frame (y_vy_gal_corr)stat.correlationdoubleY-VZeqtCorCorrelation between y and vz in ICRS (y_vz_eqt_corr)stat.correlationdoubleY-VZgalCorCorrelation between y and vz in Galactic frame (y_vz_gal_corr)stat.correlationdoubleZ-VXeqtCorCorrelation between z and vx in ICRS (z_vx_eqt_corr)stat.correlationdoubleZ-VXgalCorCorrelation between z and vx in Galactic frame (z_vx_gal_corr)stat.correlationdoubleZ-VYeqtCorCorrelation between z and vy in ICRS (z_vy_eqt_corr)stat.correlationdoubleZ-VYgalCorCorrelation between z and vy in Galactic frame (z_vy_gal_corr)stat.correlationdoubleZ-VZeqtCorCorrelation between z and vz in ICRS (z_vz_eqt_corr)stat.correlationdoubleZ-VZgalCorCorrelation between z and vz in Galactic frame (z_vz_gal_corr)stat.correlationdoubleVX-VYeqtCorCorrelation between vx and vy in ICRS (vx_vy_eqt_corr)stat.correlationdoubleVX-VYgalCorCorrelation between vx and vy in Galactic frame (vx_vy_gal_corr)stat.correlationdoubleVX-VZeqtCorCorrelation between vx and vz in ICRS (vx_vz_eqt_corr)stat.correlationdoubleVX-VZgalCorCorrelation between vx and vz in Galactic frame (vx_vz_gal_corr)stat.correlationdoubleVY-VZeqtCorCorrelation between vy and vz in ICRS (vy_vz_eqt_corr)stat.correlationdoubleVY-VZgalCorCorrelation between vy and vz in Galactic frame (vy_vz_gal_corr)stat.correlationdouble