STEREO-A IMPACT SEPT: 1-Minute Electron and Proton Spectra from Solar Wind

Minute-resolution electron and proton flux spectra collected by the STEREO-A spacecraft's IMPACT SEPT instrument. The data consist of fluxes from 32 energy bands spanning ~20 keV to 2000 keV for electrons and up to 7000 keV for protons, measured in four distinct directions relative to the Parker magnetic field and ecliptic plane. The dataset is provided by the National Aeronautics and Space Administration and was last updated in March 2026.

Use Cases

• Modeling solar energetic particle acceleration and transport based on multi-directional, minute-resolution flux measurements.
• Analyzing the anisotropy of particle distributions based on data from four distinct viewing directions.
• Correlating proton and electron flux changes with solar wind transients and CME events.
• Studying energy spectra evolution of particles across 32 bands from ~20 keV to 7000 keV.

Strengths

• Provides high temporal resolution with 1-minute spectra.
• Measures both electrons and protons across a broad energy range (~20 keV to 7000 keV).
• Captures directional information with measurements from four distinct 60-degree fields of view.

Limitations

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

Provenance

Source

National Aeronautics and Space Administration

Collection Method

In-situ measurements from the Solar Electron Proton Telescope (SEPT) on the STEREO-A spacecraft.

Time Range

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Freshness

Last updated 2026-03-13 04:48:08.533930; freshness should be verified.

Geography

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