MMS 3 EDI: Ambient Electron Flux Measurements at 1024 Samples/Second

NASA's Magnetospheric Multiscale (MMS) mission 3 satellite provides electron flux data from its Electron Drift Instrument (EDI) in ambient mode. The dataset contains burst mode measurements at a 0.9765625 millisecond (1024 samples per second) resolution, focusing on field-aligned pitch angles. Data includes beam firing directions, times-of-flight, quality indicators, and timestamps for detected electron beams.

Use Cases

• Analyzing high-frequency electron flux variations based on the 1024 samples per second burst mode data.
• Studying field-aligned electron pitch angle distributions based on the instrument's operational mode.
• Investigating signal-to-noise ratio (SNR) thresholds for beam detection as described in the instrument methodology.
• Correlating electron drift velocities with ambient magnetic and electric field conditions using the described measurement principles.

Strengths

• Data is collected at a high temporal resolution of 0.9765625 milliseconds (1024 samples per second) in burst mode.
• Produced by NASA, a highly authoritative source for space science data.
• The instrument description details a sophisticated beam detection method based on the square of the signal-to-noise ratio.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and total dataset size are unknown, which may limit suitability assessment.
• The description metadata is incomplete, ending mid-sentence; actual data structure requires inspection.

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Measured by the Electron Drift Instrument (EDI) on the Magnetospheric Multiscale (MMS) mission 3 satellite.

Time Range

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Freshness

Last updated 2026-03 13 06:04:39.830432; freshness should be verified.

Geography

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