ACE EPAM: 17-Minute-Averaged Energetic Particle Flux Data

NASA's ACE EPAM dataset is an ensemble of 26 data sets providing 17-minute-averaged, background-corrected energetic particle fluxes. The data includes fluxes for protons, electrons, and ions across multiple energy bins, measured in different frames and from various telescope apertures. The data was last updated on 2026-03 13.

Use Cases

• Modeling solar wind particle propagation based on energy-binned flux data.
• Analyzing spin-sectored particle anisotropy based on measurements from four telescope apertures.
• Studying energetic particle events by comparing spacecraft rest frame and solar wind rest frame fluxes.
• Correlating proton, electron, and ion flux variations for space weather forecasting.

Strengths

• Data is background-corrected and averaged over 17-minute intervals.
• Includes fluxes for protons (~63-4430 keV), electrons (~40-360 keV), and ions (100-6500 keV/n).
• Comprises 26 distinct data sets with varying parameters like frame and aperture.
• Provided by the authoritative source NASA.

Limitations

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

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Measured by the Electron Proton Alpha Monitor (EPAM) instrument on the Advanced Composition Explorer (ACE) satellite.

Time Range

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Freshness

Last updated 2026-03-13 14:33:52.208986; freshness should be verified.

Geography

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