IMP 8 Cosmic Ray Nuclear Composition: 15-Minute Particle Counts and Fluxes

IMP 8 Cosmic Ray Nuclear Composition (CRNC) data provides 15-minute-resolution particle count rates from the spacecraft's Low Energy and main telescopes. The dataset includes counts for electrons, protons, helium nuclei, and CNO nuclei across specified energy bands, as documented by the National Aeronautics and Space Administration. Data is accessible via FTP and was last updated on 2026-03 13.

Use Cases

• Modeling solar energetic particle events based on 15-minute resolution proton and electron count rates.
• Analyzing the composition of galactic cosmic rays based on helium and CNO nuclei data across multiple energy bands.
• Studying space weather effects on near-Earth environment using the multi-species, multi-energy particle measurements.
• Calibrating or validating particle flux models using the documented algorithms for computing rates from the paired counts and times.

Strengths

• Provides data for multiple particle species: electrons in 3 bands, protons in 9 bands, helium in 10 bands, and CNO nuclei in 1 band.
• Offers high temporal resolution with data recorded at 15-minute intervals.
• Includes documented algorithms for computing count rates and fluxes from the provided paired counts and accumulation times.

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 statistical analysis.
• Description metadata is limited; actual data quality and completeness require manual inspection after download.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Collected by the IMP 8 spacecraft's Low Energy Telescope and main telescope.

Time Range

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Freshness

Last updated 2026-03-13 06:27:19.817299; freshness should be verified.

Geography

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