Fig. A.1
Validation for MESSENGER NS observations: GCR flux obtained via MESSENGER NS counts, and from McMurdo neutron monitor observations (left column). Shown are GCR fluxes obtained via NS Triple Coincidence counts (top panel), NS LG1 double coincidence counts (middle panel), and NS LG2 double coincidence counts (bottom panel). The flux ratios (right column) had mean values of 1.07, 1.15, and 1.17, respectively. The time period assessed was March 26th 2011 to April 30th 2015.
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