MMS 2 FPI-DES: Magnetospheric Plasma Distributions at 4.5-Second Resolution

The Fast Plasma Investigation (FPI) instrument on the Magnetospheric Multiscale (MMS) mission 2 spacecraft collected high-resolution particle observations. This dataset contains corrected phase space distribution maps aggregated to a 4.5-second survey resolution, released by the National Aeronautics and Space Administration. The data includes time stamps and instrument state annotations, with the last metadata update recorded on 2026-03-13.

Use Cases

• Modeling magnetospheric plasma behavior based on aggregated 4.5-second particle distribution maps.
• Analyzing instrument system state and data quality based on the provided time stamps and annotations.
• Studying electron spectra in space plasma based on the Dual Electron Spectrometer (DES) instrument data.

Strengths

• Data originates from the NASA MMS mission, a recognized scientific spacecraft.
• Contains corrected 'Fast Survey Sky Map' distributions representing the highest possible quality at the time of release.
• Includes time stamps and instrument state annotations for each 4.5-second period.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and dataset size are unknown, which may limit suitability assessment.
• Data is provided in BIN format, which may require specialized tools for access and analysis.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Collected by the Fast Plasma Investigation (FPI) instrument on the MMS 2 spacecraft, aggregated onboard from burst resolution to survey resolution.

Time Range

Temporal coverage is not explicitly stated in the provided metadata.

Freshness

Last updated 2026-03-13 06:24:41.116596; freshness should be verified.

Geography

Data is collected in the MMS Region Of Interest (ROI) in space, specific to the current mission phase.