Dynamical estimation of masses of the Main asteroid belt and some individual asteroids within the EPM ephemeris using infrared data

M. Kan, D. Pavlov

Proceedings of the VAK-2021 conference, 93–95 (2022)

DOI: 10.51194/VAK2021.2022.1.1.023

Keywords: masses estimation, infrared data, Tikhonov regularization

Abstract

The purpose of this work is to estimate the mass of the main asteroid belt and those of the individual asteroids. To solve this task we propose to use Tikhonov regularization which allows to use a priori information on the asteroids’ masses and their uncertainties. Each a priori mass and its uncertainty were calculated based on the infrared diameter and density estimates of a particular asteroid. As a result, we managed to obtain mass estimates consistent with those obtained earlier, and to extend the list of asteroids whose masses are individually determined in the EPM dynamical model.