WHISPER: Waves of High frequency and Sounder for Probing of Electron density by Relaxation

Last modified at Mar 5th, 2024, 14:00 UTC

Type

Description

The WHISPER (Waves of High frequency and Sounder for Probing of Electron density by Relaxation) experiment measures the electric field fluctuations in the range 2-80 kHz. It fulfils two functions/modes: (1) In active operations, it measures the total electron density via an active radio-frequency technique, the relaxation sounder. (2) In passive operations, it provides a survey of natural emissions in the range 2-80 kHz, range which covers the electron plasma resonance frequency in most regions explored by the Cluster satellites.

Operational Modes

  • Active sounding

    sounding

    WHISPER measures the total electron density via an active radio-frequency technique, the relaxation sounder.

  • Passive sounding

    listening

    WHISPER provides a survey of natural emissions in the range 2-80 kHz, range which covers the electron plasma resonance frequency in most regions explored by the Cluster satellites.

Further Information and Resources

Resources

Metadata Information

Editor Royal Belgian Institute for Space Aeronomy
Version 1
Created Wednesday 14th Sept. 2022, 12:00
Last Modified Tuesday 5th March 2024, 14:00