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Masses of Asteroids 10 Hygiea and 152 Atala Obtained by the Dynamical Method

Yu. A. Chernetenko, A. V. Ivantsov

Protecting the Earth against Collisions with Asteroids and Comet Nuclei, In: A. M. Finkelstein, W. F. Huebner, V. A. Shor (Eds) Proceedings of the International Conference “Asteroid-Comet Hazard-2009”, StP: Nauka, 46–48 (2010)

Keywords: Very Long Baseline Interferometry (VLBI), Small Solar System Body (SSSB), mass of asteroids 10 Hygiea, mass of asteroids 152 Atala, the dynamical method, perturbing asteroids, the additional acceleration, the Yarkovsky effect, elimination of erroneous observations, optical observations

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Masses of asteroids 10 Hygiea and 152 Atala have been obtained by the dynamical method. Some other asteroids were used as test particles. We evaluated the contributions from different perturbing asteroids and the additional acceleration caused by the Yarkovsky effect in determining the masses. The influence of different criteria for elimination of erroneous observations on the value of determined mass was studied. The final mass values were obtained by common solutions based on optical observations of eight perturbed asteroids for 10 Hygiea