PSP FIELDS DFB: AC Voltage and Magnetic Field Spectra from Parker Solar Probe

Parker Solar Probe FIELDS instrument data provides calibrated power spectral densities for electric and magnetic fields below 75 kHz. Level 2 data products are expressed in sensor coordinates, with voltage in Volts²/Hz and magnetic field in nT²/Hz. The data is produced by NASA and last updated in March 2026.

Use Cases

• Analyzing solar wind turbulence based on calibrated power spectral densities.
• Studying electromagnetic wave modes in the solar corona based on frequency spectra.
• Investigating instrument response and calibration effects based on the described filter and gain corrections.
• Modeling plasma sheath effects by comparing Level 2 (uncorrected) to Level 3 (corrected) data products.

Strengths

• Data is calibrated for six specific factors including Hanning window, in-band gain, and analog/digital filter responses.
• Spectral data is duty-cycled and averaged with a described methodology for different data cadences.
• Produced by the authoritative source, NASA.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Voltage sensor data lacks corrections for plasma sheath impedance and antenna effective length, which are reserved for Level 3.
• Row count and dataset scale are unknown, which may limit suitability assessment.

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 solar orbits, with specific coordinate systems noted for orbits 1-2 versus orbit 3+.

Freshness

Last updated 2026-03-13 05:50:20.181454

Geography

Data collected in space during the Parker Solar Probe's mission near the Sun.