PSP FIELDS DFB: Parker Solar Probe Low-Frequency Electric and Magnetic Field Waveforms

NASA's Parker Solar Probe FIELDS experiment provides calibrated low-frequency (<75 kHz) electric and magnetic field waveform data. The Level 2 data products in this file have been calibrated for in-band gain, analog filter response, and search coil preamplifier response, with voltage expressed in Volts and magnetic field in nanoTeslas. Data is collected in spacecraft or sensor coordinates, with a typical cadence of 256 samples per Nyquist second during solar encounters within 0.25 AU.

Use Cases

• Analyzing electric field fluctuations in the solar wind based on single-ended voltage waveform data.
• Studying low-frequency magnetic field waves based on search coil magnetometer data mentioned in the description.
• Investigating plasma wave spectra and features up to 75 kHz using the calibrated time-series data.
• Examining spacecraft coordinate (x,y,z) versus sensor coordinate (dV12, dV34, u,v,w) representations of field data.

Strengths

• Data is calibrated for DFB in-band gain, analog filter gain/phase, digital filter phase, and search coil preamplifier response.
• Provides specific references to peer-reviewed publications detailing the instrument and experiment.
• Specifies typical data cadence of 256 samples per Nyquist second during solar encounters.

Limitations

• Digital filter gain response calibration is not applied, which may affect spectral analysis at high frequencies.
• Corrections for plasma sheath impedance and antenna effective length are deferred to Level 3 products.
• Column-level documentation is absent; field semantics must be inferred after download.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Collected by the Digital Fields Board (DFB) component of the FIELDS experiment on the Parker Solar Probe spacecraft.

Time Range

Covers periods when PSP is within 0.25 AU of the Sun, with variable time resolution.

Freshness

Last updated 2026-03 13 05:48:47.609436

Geography

Inner heliosphere, along the Parker Solar Probe's trajectory.