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Asteroid families: properties, recent advances, and future opportunities

Nesvorný, David; Novaković, Bojan; Spoto, Federica +1 more

Collisions are one of the key processes shaping planetary systems. Asteroid families are outcomes of such collision still identifiable across our solar system. The families provide a unique view of catastrophic disruption phenomena and have been in the focus of planetary scientists for more than a century. Most of them are located in the main belt…

Gaia-DR2 asteroid observations and INPOP planetary ephemerides

Laskar, J.; Fienga, A.; Gastineau, M. +2 more

We used the INPOP19a planetary ephemerides to perform the orbital adjustment of 14099 asteroids based on Gaia-DR2 observations and compare for 23 of them the resulting orbits to radar data. As Gaia-DR2 has been processed using the planetary ephemeris INPOP10e, the primary goal of this paper is to confirm the portability of the data when using an u…