QUICK LOOK DATA
The most recent Voyager 6-hour averages for the LA1 (> 0.5 MeV/nuc nuclei) and PGH (> 70 MeV/nuc nuclei) rates are shown below in selectable thumbnail images.
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).
The PGH rate consists of greater than 70 MeV/nuc nuclei, primarily protons,
and is a good indicator of the level of modulation of galactic cosmic rays. It can also respond to large solar flares.
NOTE: The drop in the Voyager 1 LA1 rate data shown in the figure below is temperature related due to the turn-off of the CRS heater.
The Voyager 2 heater was turned off in mid 2019. Corrections have been applied to the Voyager 2 flux data from DOY 178/2019 (June 27).
Flux data from DOY 160/2019 to DOY 178/2019 (June 9 - 26) is not available.
See Voyager-2 Temperature Corrections for additional information.
The Rate data has not been corrected so please use caution using V1 Rate data after DOY 138/2022 and V2 Rate data after DOY 159/2019 (June 8).
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