Polar PWI: High Frequency Plasma Wave Data from Satellite

High-frequency waveform data from the Polar satellite's Plasma Wave Instrument (PWI). The data consists of calibrated snapshots of 2048 points per channel collected every 128.8 seconds, covering an unattenuated frequency range from 20Hz to 16000Hz. The dataset is produced by NASA and referenced in scientific literature.

Use Cases

• Analyzing plasma wave spectra based on the calibrated high-frequency waveform data
• Studying wave phenomena like chorus or auroral hiss based on the described frequency range
• Correlating wave activity with magnetic field orientation using the described coordinate system
• Calibrating or validating instrument models based on the documented FFT calibration process

Strengths

• Data is calibrated using a documented FFT process on 2048 values
• Specific unattenuated frequency range of 20Hz to 16000Hz is defined
• Snapshots have a defined cadence of 2048 points per channel every 128.8 seconds

Limitations

• Column-level documentation is absent; field semantics must be inferred after download
• Row count is unknown, which may limit suitability assessment

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Data collected by the Polar satellite's Plasma Wave Instrument.

Freshness

Last updated 2026-03-13 05:27:00.813066; freshness should be verified