PSP FIELDS DFB: Search Coil Magnetometer Spectra from Parker Solar Probe

Parker Solar Probe FIELDS instrument data provides calibrated low-frequency magnetic field spectra in sensor coordinates. The Level 2 data products are calibrated for instrument gain, filter responses, and spectral bin bandwidth, with units of nanoTesla squared per Hertz. This dataset is produced by the National Aeronautics and Space Administration and was last updated in March 2026.

Use Cases

• Analyzing low-frequency (<75 kHz) magnetic field power spectral densities based on the calibrated spectra.
• Studying the evolution of plasma wave features over time based on the time-series spectral data.
• Investigating coordinate system transformations for magnetic field vectors based on the described [d,e,f] to [u,v,w] rotation.
• Comparing instrument-calibrated Level 2 data with higher-level corrected products based on the described calibration pipeline.

Strengths

• Data is calibrated for six specific factors including in-band gain, analog/digital filter responses, and spectral bin bandwidth.
• Provides spectra in sensor coordinates with a defined rotation matrix for coordinate transformation between solar orbits.
• Last updated on 2026-03-13, indicating recent maintenance.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Description notes a non-physical positively sloped power trend at high frequencies in noise-dominated signals due to digital filter compensation.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

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

Time Range

Covers solar orbits, with specific coordinate systems noted for orbits 1-2 and orbits 3+.

Freshness

Last updated 2026-03-13 05:52:38.611330

Geography

Data collected in space by the Parker Solar Probe spacecraft.