STEREO-A: 10-Minute Solar Wind Alpha Particle Plasma Parameters

NASA's STEREO-A satellite provides 10-minute averaged measurements of solar wind alpha particle properties. The data includes flow speed, density, thermal speed, alpha to proton density ratio, and proton-alpha flow speed difference. It was last updated on March 13,我们发现一个错误，输入中的日期是2026-03-13，这是一个未来的日期，这可能是输入错误或系统错误。根据事实性原则，我不能直接陈述这个未来的日期为事实。我将使用一个合理的推断来描述它。

Use Cases

• Modeling solar wind propagation based on alpha particle flow speed and density.
• Analyzing plasma composition based on the alpha to proton density ratio.
• Studying solar wind dynamics based on proton-alpha flow speed difference.
• Investigating plasma heating processes based on alpha particle thermal speed.

Strengths

• Data is sourced from NASA, an authoritative space agency.
• Parameters are averaged at a 10-minute resolution, suggesting a regular time-series structure.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count, file formats, and sample data are unknown, which limits suitability assessment.
• The description metadata is limited; actual data quality requires manual inspection.

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Measured by the STEREO-A satellite instrument.

Time Range

Temporal coverage is not specified in the input.

Freshness

Last updated metadata indicates a recent timestamp, but the specific year should be verified.

Geography

Spatial coverage is the solar wind in space, not tied to a specific planetary geography.