August 8, 2018

Electric Field Antennas

Mounted on the Parker Solar Probe, the five electric field antennas of FIELDS are built of a niobium alloy to withstand the extreme temperatures of the solar corona. Four of the antennas extend out beyond the spacecraft’s heat shield. The antennas measure electric fields across a broad range of frequencies, providing data on both fast and slow solar wind.

https://www.nasa.gov/content/goddard/parker-solar-probe-instruments