STEREO-A PLASTIC: Helium Ion Phase Space Densities in Solar Wind

STEREO-A Plasma and Supra-Thermal Ion Composition (PLASTIC) He+ Phase Space Density data from NASA. The dataset provides hourly resolution measurements of Helium ion densities, binned by velocity relative to the solar wind speed. It was last updated on 2026-03 13.

Use Cases

• Modeling solar wind particle distributions based on He+ phase space density.
• Analyzing suprathermal ion behavior based on velocity-to-solar-wind-speed (V/Vsw) binning.
• Correlating Helium ion flux with solar events using hourly time-series data.

Strengths

• Data originates from NASA's STEREO-A mission, an authoritative source for space weather.
• Provides hourly resolution, suitable for time-series analysis of solar wind dynamics.
• Last updated on 2026-03-13, indicating recent maintenance.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and file size are unknown, which may limit suitability assessment.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Collected by the STEREO-A spacecraft's PLASTIC instrument.

Time Range

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Freshness

Last updated 2026-03-13 04:46:05.313190.

Geography

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