J/AJ/112/2319ivo://CDS.VizieR/J/AJ/112/2319doi:10.26093/cds/vizier.51122319CDSHilton J.L.Seidelmann P.K.Middour J.2023-04-06T16:50:22Z1997-12-09T20:37:24ZCDS support team

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

cds-question@unistra.frasteroidsThe orbits of 4583 main belt asteroids are integrated orbits for 57 years and searched for asteroid-asteroid encounters from which it may be possible to determine the masses of 23 of the largest asteroids (diameter>=200km) and 11 smaller asteroids. The search is conducted using a scattering formula which serves as a useful filter for identifying encounters that can lead to a mass determination. A total of 460 such encounters were found. The ten most useful of these encounters are examined in detail. The results show that, to make a reliable mass determination, the mean distance of the perturbed asteroid must be known to within a few times 10^-8^AU. An observing program targeting the asteroids listed here would have a substantial impact on our knowledge of asteroid masses and densities.1996AJ....112.2319Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/112/2319CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/112/2319https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/112/2319http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/112/2319https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/112/2319https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/112/2319http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/112/2319GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/AJ/112/2319/table2Significant encounters involving large asteroidsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDateDate of least separationtime.epochLargerName of larger asteroidmeta.id.part;meta.maincharLType*Tholen et al. (1989) type of Largermeta.notecharSmallerName of smaller asteroidmeta.id.part;meta.maincharSType*Tholen et al. (1989) type of Smallermeta.notecharDistDistance between on Date at 0 hr. UTAUpos.distancefloatTimeNumber of days distance less than 0.05 AUdmeta.numberintQual*Quality factor, from 1 to 5meta.code.qualint