MMS 3 Fast Plasma Investigation, Dual Electron Spectrometer (FPI, DES) Partial Distributio

NASA's Magnetospheric Multiscale (MMS) mission provides partial plasma moments derived from the Fast Plasma Investigation's Dual Electron Spectrometer. The dataset contains parameters like density_part, calculated by integrating over a limited portion of velocity space from a specific energy step to infinity. Data are available in Burst Mode at 30 ms resolution, as well as in Survey and Slow Survey modes, with the last update recorded on 2026-03-13.

Use Cases

• Analyzing high-time-resolution plasma dynamics based on 30 ms burst mode data
• Studying partial particle distributions based on the 'part' decorated moments like density_part
• Investigating instrument performance and calibration states based on included time stamps and annotation parameters
• Comparing plasma behavior inside and outside the Mission Region of Interest based on different operational modes

Strengths

• Data originates from NASA's authoritative Magnetospheric Multiscale (MMS) mission
• Provides high-resolution 30 ms burst mode measurements for detailed temporal analysis
• Includes specialized partial moments (e.g., density_part) for focused velocity space analysis
• Last update was 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
• Not all burst resolution data are downlinked per mission design, creating potential data gaps

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Collected by the MMS 3 spacecraft's Fast Plasma Investigation, Dual Electron Spectrometer instrument

Time Range

Temporal coverage is not explicitly specified in the input

Freshness

Last updated 2026-03-13 06:13:46.631066

Geography

Spatial coverage is magnetospheric, focusing on the Mission Region of Interest