WHISPER: Waves of High frequency and Sounder for Probing of Electron density by Relaxation
Last modified at Mar 5th, 2024, 14:00 GMT
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
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Active sounding
sounding- Description
- WHISPER measures the total electron density via an active radio-frequency technique, the relaxation sounder.
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Passive sounding
listening- Description
- 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
| Editor | Royal Belgian Institute for Space Aeronomy |
| Version | 1 |
| Created | Wednesday 14th Sept. 2022, 12:00 |
| Last Modified | Tuesday 5th March 2024, 14:00 |