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Voyager Cosmic Ray Sub SystemThe Voyager-1 CRS instrument was turned off on 02/26/2025 (DOY 56) as part of the power management plan.
The LA1 rate consists of greater than 0.5 MeV/nuc nuclei, principally protons, and is sensitive to low-energy phenomena in interplanetary space (e.g., co-rotating interaction regions, associated enhancements and solar flares).
For a list of excluded times please see Excluded Times for Voyager-1.
The Voyager-1 Cosmic Ray Subsystem instrument heater was turned off on Day 138 (05/18/2022) as part of the new power management plan.
Postscript and PDF versions are available through the links under each figure.
 Voyager-1 LA1 Rate (3 months) PS | PDF | Data Listing |
 Voyager-1 LA1 Rate (12 months) PS | PDF | Data Listing |
