Polar PWI: High-Frequency Plasma Wave Interferometry Measurements from the Polar Satellite

190,902 data points per snapshot capture plasma wave phenomena in a 20Hz to 25kHz frequency range. The dataset contains calibrated time-series measurements from the Polar spacecraft's Plasma Wave Instrument, processed using a 1024-point FFT. NASA produced this data, which was last updated in March 2026.

Use Cases

• Analyzing wave mode identification and propagation based on interferometry fields mentioned in the description
• Studying the spectral characteristics of plasma waves within the 25kHz bandwidth
• Investigating wave-particle interactions using high-cadence (71.43 kHz sampling) waveform data
• Calibrating and validating plasma wave models using the described FFT-based calibration methodology

Strengths

• Data is calibrated using a described 1024-point FFT process
• Covers a specific high-frequency range from 20Hz to 25,000Hz
• Provides high temporal resolution with a sampling rate of 71.43 kHz
• Each data snapshot contains a substantial 190,902 points

Limitations

• Column-level documentation is absent; field semantics must be inferred after download
• Row count is unknown, which may limit suitability assessment
• The coordinate system (antenna coordinates offset from spacecraft axes) may require transformation for some analyses

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Measurements from the Polar spacecraft's Plasma Wave Instrument (PWI) High Frequency Waveform Receiver.

Time Range

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Freshness

Last updated 2026-03 13 07:36:43.374114; freshness should be verified

Geography

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