Observing dark matter clumps and asteroid-mass primordial black holes in the solar system with gravimeters and GNSS networks

In this proceedings, we study the possible gravitational impact of primordial black holes (PBHs) or dark matter (DM) clumps on GNSS satellite orbits and gravimeter measurements. It provides a preliminary step to the future exhaustive statistical analysis over 28 years of gravimeter and GNSS data to get constraints over the density of asteroid-mass PBH and DM clumps inside the solar system. Such constraints would be the first to be obtained by direct observation on a terrestrial scale.
Comment: Contribution to the 2023 Gravitation session of the 57th Rencontres de Moriond