Helios 2 E6: Hourly Particle Fluxes from a Solar Mission

Helios 2 E6 (Kunow) data contains hourly-averaged fluxes of protons, alpha particles, and electrons across multiple energy ranges. The dataset was produced by the National Aeronautics and Space Administration and was last updated on 2026 -03-13. Each data record spans 4-5 hours and contains 10 overlapping segments with flux values and their statistical uncertainties.

Use Cases

• Modeling solar energetic particle event time profiles based on hourly-averaged fluxes.
• Analyzing the composition of the solar wind based on proton and alpha particle energy spectra.
• Studying correlations between different particle species and energy ranges mentioned in the description.

Strengths

• Provides fluxes for three particle species (protons, alpha particles, electrons) across 13 distinct energy ranges.
• Data is averaged over intervals of approximately one hour, providing a consistent temporal resolution.
• Includes statistical uncertainties for each of the 13 flux measurements.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The description notes that good values for a given flux appear only in a minority of the segments within a record.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Data are from the E6 experiment on the Helios 2 spacecraft.

Time Range

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Freshness

Last updated 2026-03-13 07:08:03.205409; freshness should be verified.

Geography

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