Asteroid masses obtained with INPOP planetary ephemerides

ABSTRACT In this paper, we present masses of 103 asteroids deduced from their perturbations on the orbits of the inner planets, in particular Mars and the Earth. These determinations and the INPOP19a planetary ephemerides are improved by the recent Mars orbiter navigation data and the updated orbit...

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Bibliographic Details
Published in:Monthly notices of the Royal Astronomical Society 2020-02, Vol.492 (1), p.589-602
Main Authors: Fienga, A, Avdellidou, C, Hanuš, J
Format: Article
Language:English
Subjects:
Astrophysics
Earth and Planetary Astrophysics
Earth Sciences
Physics
Sciences of the Universe
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Summary:ABSTRACT In this paper, we present masses of 103 asteroids deduced from their perturbations on the orbits of the inner planets, in particular Mars and the Earth. These determinations and the INPOP19a planetary ephemerides are improved by the recent Mars orbiter navigation data and the updated orbit of Jupiter based on the Juno mission data. More realistic mass estimates are computed by a new method based on random Monte Carlo sampling that uses up-to-date knowledge of asteroid bulk densities. We provide masses with uncertainties better than 33${{\ \rm per\ cent}}$ for 103 asteroids. Deduced bulk densities are consistent with those observed within the main spectroscopic complexes.
ISSN:0035-8711
1365-2966
DOI:10.1093/mnras/stz3407