Mass estimates of 1783 asteroids

We use all astrometry reported to the Minor Planet Center, high-precision astrometry from ESA's Gaia Focused Product Release, and radar delay-Doppler data when available. A search for close encounters between all known asteroids and a preliminary list of the largest asteroids leads to approximately 975,000 asteroids that may have been perturbed in a measurable way.

We find about 86,000 asteroids with signal in their astrometry for one or more asteroid masses. The multidimensional, weighted combination of all estimates yields 77 asteroid masses with signal-to-noise ratio SNR>10, and 232 asteroid masses with SNR>3, all in the main belt or outer main belt. We did not find any signal for individual masses of Trojans, Centaurs, or Trans-Neptunian Objects.