Ulysses: Hourly Magnetic Field and Solar Wind Plasma Data

Hourly resolution merged data from the Ulysses spacecraft, containing magnetic field vectors and plasma flow direction angles in RTN coordinates. The dataset was created at NASA's National Space Science Data Center (NSSDC) for COHOWeb and includes spacecraft position data in Heliographic inertial (HGI) coordinates. The data is provided in TEXT format.

Use Cases

• Modeling solar wind propagation based on plasma flow direction angles.
• Analyzing interplanetary magnetic field structure based on vector data in RTN coordinates.
• Correlating spacecraft position in HGI coordinates with local plasma and magnetic field conditions.
• Studying temporal variations in the heliospheric environment based on hourly time-series data.

Strengths

• Data is provided at a consistent hourly temporal resolution.
• Includes multiple coordinated data types: magnetic field vectors, plasma flow angles, and spacecraft position.
• Created and hosted by NASA, a recognized authority in space science.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and total dataset size are unknown, which may limit suitability assessment.
• Description metadata is limited; actual data quality requires manual inspection after download.

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Merged data created at the National Space Science Data Center (NSSDC) for the COHOWeb system from Ulysses spacecraft instruments.

Time Range

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Freshness

Last updated 2026-03-13 05:30:14.950744; freshness should be verified.

Geography

Heliospheric (solar system)