J/AJ/170/353ivo://CDS.VizieR/J/AJ/170/353CDSFuentes-Munoz O.Farnocchia D.Giorgini J.D.Park R.S.2026-09-09T11:22:03Z2026-09-09T09:27:09ZCDS support team

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

cds-question@unistra.frasteroidsMutual perturbations between asteroids during close encounters allow the estimation of their masses using precise astrometric observations. We use all astrometry reported to the Minor Planet Center, high-precision astrometry from ESA's Gaia Focused Product Release, and radar delay-Doppler data when available. A search for close encounters between all known asteroids and a preliminary list of the largest asteroids leads to approximately 975,000 asteroids that may have been perturbed in a measurable way. We find about 86,000 asteroids with signal in their astrometry for one or more asteroid masses. The multidimensional, weighted combination of all estimates yields 77 asteroid masses with signal-to-noise ratio SNR>10, and 232 asteroid masses with SNR>3, all in the main belt or outer main belt. We did not find any signal for individual masses of Trojans, Centaurs, or Trans-Neptunian Objects. From the estimated asteroid masses, we derive updated density estimates for asteroids with well-determined diameters. The updated total main belt mass estimate (sum-of-all-a<4.6AU, H<18) is (13.11+/-0.06)x10^-10^M_{sun}_.2025AJ....170..353Fhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/170/353CatalogResearchIsServedByTAP VizieR generic servicerelated-toI/355 : Gaia DR3 Part 1. Main source (Gaia Collaboration, 2022)J/ApJ/743/1 : Astrometry of 7 wide trans-Neptunian binaries (Parker+, 2011)J/A+A/565/A56 : Astrometric asteroid masses (Goffin, 2014)J/A+A/576/A8 : ADAM: 3D asteroid shape reconstruction code (Viikinkoski+, 2015)J/AJ/154/76 : Masses of 30 large subject asteroids (Baer+, 2017)J/A+A/623/A132 : SPHERE/ZIMPOL (41) Daphne images (Carry+, 2019)J/A+A/641/A80 : Asteroid (31) Euphrosyne R-band images (Yang+, 2020)J/A+A/650/A129 : SPHERE (87) Sylvia images (Carry+, 2021)J/A+A/654/A56 : Largest main belt asteroids data (Vernazza+, 2021)J/A+A/662/A71 : (22) Kalliope SPHERE images and shape models (Ferrais+, 2022)J/A+A/679/A60 : Properties of slowly rotating asteroids (Marciniak+ 2023)J/A+A/670/A52 : (65) Cybele VLT/SPHERE disk-resolved images (Marsset+, 2023)J/AJ/167/104 : Patroclus-Menoetius mutual events season 2024 (Brozovic+, 2024)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/170/353https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/170/353http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/170/353https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/170/353https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/170/353http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/170/353GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/AJ/170/353/table5Asteroid initial masses and uncertaintiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintAsteroidAsteroidmeta.id;meta.maincharGroupGroup (1)meta.idcharGMini[4.4e-4/1099] Initial mass parameterkm**3.s**-2phys.massdoublee_GMini[1.2e-7/153.92] 1{sigma} uncertainty in GMinikm**3.s**-2stat.error;phys.massdoubler_GMiniReference or methods for GMini (2)meta.ref;phys.masscharGMfin[3.1e-3/62.64]? Final mass parameterkm**3.s**-2phys.massdoublenullablee_GMfin[6e-4/0.094]? 1{sigma} uncertainty in GMfinkm**3.s**-2stat.error;phys.massdoublenullableSPKID[21/54487296] JPL Small-Body Database SPK-IDmeta.idintNtest[0/48975] Number of test asteroids that encountered each perturber asteroid (3)meta.numberintNsign[0/2046] Number of asteroids for which the a posteriori mass estimate uncertainty was reduced (4)meta.numberintListList of objects for which there was signal (5)meta.idBibcodeADS Bibcode of GMmeta.bib.bibcodecharShortbibShort reference, author+year, for GMmeta.bib.authorcharEphemShow the Ephemeride of this Asteroid (from IMCCE)meta.ref.urlcharJ/AJ/170/353/table6232 Mass estimates obtained with SNR>3; 78 obtained with SNR>2recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintAsteroid[1/5603] Asteroidmeta.id;meta.mainintGM[3.1e-3/62.64] Mass parameterkm**3.s**-2phys.massdoublee_GM[6e-4/0.094] 1{sigma} uncertainty in GMkm**3.s**-2stat.error;phys.massdoubleSNR[2/3378.5] Signal-to-noise ratio (1)stat.snrdoubleSNR-lit[*] *=Indicate masses with literature estimates of at least 2*SNRmeta.notecharDiam[30.81/939.4] Distancekmphys.size.diameterfloate_Diam[1/15]? 1{sigma} uncertainty in Diamkmstat.error;phys.size.diameterintnullableDiam-BibcodeADS bibcode reference for Diammeta.bib.bibcodecharDiam-ShortbibShort references, author+year, for Diam (3)meta.bib.authorcharDens[0.38/65.54] Density (2)g.cm**-3phys.densitydoublee_Dens[0.053/1.51]? 1{sigma} uncertainty in Densg.cm**-3stat.error;phys.densitydoublenullable