Using close encounters of minor planets for the improvement of their masses

Author(s): Lopez Garcia, A; Medvedev, YD; Fernandez, JAM

Book Editor(s): Wytrzyszczak, IM; Lieske, JH; Feldman, RA

Conference: IAU Colloquium 165 – Dynamics and Astrometry of Natural and Artificial Celestial Bodies Location: POZNAN, POLAND Date: JUL 01-05, 1996

Sponsor(s): Int Astron Union; Polish Comm Sci Res; A Mickiewicz Univ Poznan; Polish Acad Sci, Comm Astron; French Minist Foreign Affairs; French Embassy Warsaw; Observatoire Cote Azur; Polish Airlines LOT; Poznan Breweries Lech

Source: DYNAMICS AND ASTROMETRY OF NATURAL AND ARTIFICIAL CELESTIAL BODIES  Pages: 199-204   Published: 1997

The orbits of 6807 numbered minor planets on the time interval 1975-2010 have been integrated. The possibility of determining masses for asteroids with close encounters with each other has been investigated, including several kinds of situations. The importance of the observational time are, as well as the distribution of observations, for determining the masses are shown. The mass of asteroid (24) Themis from its perturbations on asteroid (2296) Kugultinov, and the mass of (10) Hygiea from its perturbations on (1259) Ogyalla have been determined.