MMS 4 Fast Plasma Investigation, Dual Electron Spectrometer (FPI, DES) Partial Distributio

Partial plasma moments data from the Magnetospheric Multiscale (MMS) mission's Fast Plasma Investigation instrument. The dataset contains particle density and other parameters integrated over a limited portion of velocity space, derived from the Dual Electron Spectrometer. Data is provided by NASA at 4.5-second survey resolution, with instrument status annotations and timestamps.

Use Cases

• Analyzing plasma density variations in the magnetosphere based on partial moment integrals.
• Studying particle velocity space distributions based on the 'part' decorated parameters.
• Correlating instrument state with plasma measurements based on the included status annotations.
• Investigating solar wind-magnetosphere interactions using survey resolution time-series data.

Strengths

• Data originates from NASA's authoritative Magnetospheric Multiscale (MMS) mission.
• Includes specialized 'part' moments for analyzing limited velocity space portions.
• Contains instrument state annotations to aid in data interpretation.

Limitations

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

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Collected by the MMS spacecraft's Fast Plasma Investigation (FPI) instrument, specifically the Dual Electron Spectrometer (DES).

Time Range

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Freshness

Last updated 2026-03-13 06:02:55.206467; freshness should be verified.

Geography

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