ACE CRIS: Cosmic Ray Isotope Intensities at 1-Hour Resolution

1-hour resolution data from the Advanced Composition Explorer (ACE) Cosmic Ray Isotope Spectrometer (CRIS). It provides calibrated intensities and counts for 24 elements from boron to nickel across 7 energy bins per element, with overall energy ranges from 49-172 MeV/n to 130-496 MeV/n. The dataset is produced by NASA and is accessible via FTP in HDF, CDF, and ASCII formats.

Use Cases

• Modeling solar modulation of galactic cosmic rays based on multi-element isotope data.
• Analyzing temporal variations in cosmic ray intensities based on the 1-hour resolution time series.
• Studying elemental abundance ratios in energetic particles based on data for 24 elements.
• Correlating space weather events with cosmic ray flux changes based on calibrated science quality data.

Strengths

• Calibrated science quality data suitable for research.
• Covers 24 elements (Z=5 to Z=28) with 7 energy bins per element.
• Provides 1-hour temporal resolution for detailed time-series analysis.

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 (NASA)

Collection Method

Collected by the Cosmic Ray Isotope Spectrometer (CRIS) instrument on the Advanced Composition Explorer (ACE) spacecraft.

Time Range

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Freshness

Last updated 2026-03-13 04:54:25.056446; freshness should be verified.

Geography

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