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)
Voyager-1 LA1 Rate (12 months)