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Deposit or survey

MagFuse Inversion Engine

Open tool Drone and orbital magnetometry

MagFuse takes the magnetic data from Pickaxe Survey Drones, optionally fuses it with Gravwell Gradiometer Array gravity, and inverts both into a 3D model of what lies inside a body. The result is a susceptibility volume, depth-to-source estimates for every anomaly and a ranked list of drill targets.

Joint inversion is the point: magnetic and gravity data constrain each other, so a dense, strongly magnetic blob is far more likely to be metallic iron than either signal alone. Rukmini Sato and Liang Qiao wrote the first version in 2182; it now runs on a laptop in under an hour for a typical 2-kilometre asteroid.

MagFuse is released under GPL-3.0. The repository includes worked examples from the Belt Aeromagnetic Grid and the Ferric Twins survey.

Recent work adds support for Swarm Prospecting Beacon base-station data and a faster solver for very large surveys. The project welcomes contributors with a background in geophysics or numerical methods.

Where

  • Asteroid Belt

Topics

  • open source
  • magnetometry
  • gravimetry
  • inversion