Ulysses COSPIN-HET: 10-Minute Cosmic Ray and Solar Particle Anisotropy Data

Ten-minute average counting rates for ions and electrons from the Ulysses spacecraft's COSPIN High Energy Telescope. The data provide a measure of particle arrival direction anisotropy in the spacecraft spin plane and were produced by the National Aeronautics and Space Administration. The dataset was last updated in March 2026.

Use Cases

• Analyzing the anisotropy of cosmic ray arrival directions based on eight-sectored coincidence counting rates.
• Studying temporal variations in solar energetic particle fluxes based on 10-minute averaged data.
• Modeling the modulation of galactic cosmic rays in the heliosphere based on long-term spacecraft observations.
• Investigating the connection between particle anisotropy and interplanetary magnetic field structures.

Strengths

• Data provides a direct measure of particle arrival direction anisotropy, a key parameter for space physics.
• Time series data is averaged at a 10-minute resolution, suitable for studying dynamic solar events.
• Produced by the authoritative space agency, National Aeronautics and Space Administration.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and total data volume are unknown, which may limit suitability assessment.
• Data is stored in a BIN format, which may require specialized tools for access and parsing.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Collected by the COSPIN High Energy Telescope (HET) instrument aboard the Ulysses spacecraft.

Time Range

Temporal coverage is not explicitly stated in the provided metadata.

Freshness

Last updated 2026-03-13 05:46:10.326573; freshness should be verified.

Geography

Data is collected in interplanetary space, primarily outside Earth's magnetosphere.