SOHO CELIAS-PM: 5-Minute Solar Wind Proton Data

5-minute resolution solar wind data from the SOHO spacecraft's CELIAS Proton Monitor instrument. The dataset includes proton speed, density, thermal speed, arrival direction, predicted alpha-particle speed, and spacecraft position coordinates. It was converted from ASCII to CDF format and is provided by NASA.

Use Cases

• Modeling solar wind propagation and forecasting space weather based on proton speed and density.
• Analyzing correlations between solar wind parameters and spacecraft position based on GSE coordinates and heliographic latitude/longitude.
• Studying solar wind composition and thermal properties based on most probable thermal speed and predicted alpha-particle speed.
• Investigating temporal variations in the solar wind based on the 5-minute temporal resolution.

Strengths

• Data is sourced from a well-documented scientific instrument, the SOHO CELIAS Proton Monitor.
• Includes multiple physical parameters (speed, density, thermal speed, direction) for a multi-faceted view of solar wind.
• Provides spacecraft positional context (GSE coordinates, Heliocentric Range) alongside the primary measurements.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment for large-scale modeling.

Provenance

Source

National Aeronautics and Space Administration (NASA), SOHO mission.

Collection Method

Instrument measurements from the SOHO spacecraft, converted from ASCII to CDF format.

Time Range

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Freshness

Last updated 2026-03-13 04:53:05.059913; freshness should be verified.

Geography

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