Voyager 1 CRS: Daily Proton and Helium Energy Fluxes

Voyager 1's Cosmic Ray Subsystem (CRS) experiment measured energetic particles from 1977 onward. The Level H3 daily data likely contains proton and helium energy fluxes from the spacecraft's journey through the solar system and beyond. NASA's instrument was designed to measure cosmic ray nuclei from hydrogen through iron over an energy range from approximately 1 to 500 MeV/nuc.

Use Cases

• Analyze cosmic ray energy spectra based on the described measurement range from 1 to 500 MeV/nuc.
• Study elemental composition of cosmic rays based on the instrument's capability to identify nuclei from hydrogen through iron.
• Model cosmic ray transport and acceleration processes based on the three-dimensional streaming patterns measured.
• Investigate planetary magnetosphere particle composition based on measurements at Jupiter, Saturn, Uranus, and Neptune.

Strengths

• Data originates from a long-running NASA mission with a sophisticated instrument suite.
• The CRS experiment covered a broad energy range (0.15 MeV/n to 500 MeV/n) and atomic numbers (1 to 30).
• The instrument measured anisotropies, providing three-dimensional streaming patterns.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• File formats include BIN, which may require specialized tools for access.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Data collected by the Voyager 1 spacecraft's Cosmic Ray Subsystem instrument.

Freshness

Last updated 2026-03-13 05:19:43.729216; freshness should be verified.

Geography

Interplanetary space and planetary magnetospheres (Jupiter, Saturn, Uranus, Neptune).