ISEE 3: Isotopic Fractions for 15 Elements from Cosmic Ray Observations

An ASCII file contains isotopic fractions and their uncertainties for 56 specific isotopes relative to isotope-integrated elemental abundances. The data covers 15 chemical elements and is based on 1978-1981 observations of ~50-500 MeV/n cosmic rays by the U. Chicago experiment on the ISEE 3 spacecraft. Each ratio is linked to its source publication.

Use Cases

• Modeling galactic cosmic ray origins based on isotopic fraction data for 15 elements.
• Comparing isotopic abundances in cosmic rays with solar system values based on the 56 specific isotope ratios.
• Calibrating or validating cosmic ray propagation simulations based on the 1978-1981 observational data.

Strengths

• Data covers 15 chemical elements and 56 specific isotopes.
• Each isotopic ratio is linked to its source publication for traceability.
• Based on observations from a specific scientific instrument (U. Chicago experiment on ISEE 3).

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

Observations from the U. Chicago cosmic ray experiment on the ISEE 3 spacecraft.

Time Range

1978-1981

Freshness

Last updated 2026-03-13 06:18:52.046273; freshness should be verified.

Geography

Space (cosmic rays)