ACE MAG: 4-Minute Magnetic Field Data in GSE and GSM Coordinates

NASA's Advanced Composition Explorer (ACE) satellite provides Level 2 magnetic field measurements. The data is processed to a quality suitable for scientific study and is provided in Geocentric Solar Ecliptic (GSE) and Geocentric Solar Magnetospheric (GSM) coordinate systems. The dataset was last updated on March 13, 2026.

Use Cases

• Modeling space weather events based on magnetic field vector data.
• Analyzing solar wind-magnetosphere coupling based on coordinate system transformations.
• Correlating magnetic field fluctuations with other space-based measurements.

Strengths

• Data is processed to Level 2 quality, described as suitable for serious scientific study.
• Magnetic field vectors are provided in two standard scientific coordinate systems (GSE and GSM).
• Data originates from NASA's authoritative ACE mission.

Limitations

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

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Measurements from the ACE Magnetic Field Instrument (MAG).

Time Range

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Freshness

Last updated 2026-03-13 04:41:33.043677; freshness should be verified.

Geography

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