ACE CRIS: Daily Cosmic Ray Isotope Intensities

Daily averaged intensities and counts for 24 cosmic ray elements from boron to nickel, measured by the ACE spacecraft's Cosmic Ray Isotope Spectrometer. The data covers seven energy bins per element, with energy ranges from 49-172 MeV/n for boron to 130-496 MeV/n for nickel. Calibrated science quality data is provided by NASA and accessible via FTP in HDF, CDF, and ASCII formats.

Use Cases

• Analyze solar modulation effects based on daily averaged fluxes for 24 elements.
• Study galactic cosmic ray composition based on isotope intensities across seven energy bins.
• Model cosmic ray propagation based on calibrated intensities for elements from boron to nickel.
• Investigate energy-dependent variations based on data covering specific MeV/n ranges per element.

Strengths

• Data covers 24 specific elements from boron (Z=5) to nickel (Z=28).
• Provides calibrated science quality data at a daily averaged resolution.
• Each element's data is segmented into seven distinct energy bins.

Limitations

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

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Measured by the ACE spacecraft's Cosmic Ray Isotope Spectrometer (CRIS) instrument.

Freshness

Last updated 2026-03-13 09:55:48.565169; freshness should be verified.