MMS 3 EDI: Ambient Electron Flux Measurements at 1024 Hz

NASA's Magnetospheric Multiscale (MMS) mission provides this Level 2 dataset from the Electron Drift Instrument (EDI) in ambient burst mode. It contains high-resolution (0.9765625 ms) measurements of ambient electron flux at a fixed, selectable energy and pitch angle, primarily in field-aligned mode. The data includes beam firing directions, times-of-flight, quality indicators, and timestamps for detected electron beams.

Use Cases

• Analyzing high-frequency variations in ambient electron flux based on the 1024 samples per second measurement rate
• Studying field-aligned electron distributions based on the instrument's primary operational mode described
• Investigating signal-to-noise dynamics in particle detection based on the described SNR threshold method
• Correlating electron behavior with magnetic field data using the precise beam firing direction and timing information

Strengths

• Data is collected at a high temporal resolution of 0.9765625 milliseconds (1024 samples per second)
• Produced by NASA, a leading authority in space science and instrumentation
• Instrument description details a sophisticated detection method based on signal-to-noise ratio thresholds

Limitations

• Column-level documentation is absent; field semantics must be inferred after download
• Row count is unknown, which may limit suitability assessment for large-scale analysis
• Data format is BIN, which may require specialized tools for access and interpretation

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Collected by the Electron Drift Instrument (EDI) on the Magnetospheric Multiscale (MMS) mission's third spacecraft.

Time Range

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Freshness

Last updated 2026-03 13 06:07:15.686763; freshness should be verified

Geography

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