Swarm

The three satellites of the Swarm mission precisely measure the magnetic fields generated from Earth's core, mantle, crust, oceans, ionosphere and magnetosphere. By observing the complexities of Earth's protective magnetic shield, Swarm is providing insight into many natural processes.

The Canadian Swarm instrument, the EFI, is positioned at the front of each satellite and provides data on ionospheric winds in high resolution to characterize the electric field around Earth.