Comparison of the proton flux measured by RADEM and ERNE from September 1 to November 6, 2025. From top to bottom: (1) proton flux measured by RADEM-PDH (pink) and ERNE-HED (green); (2) ratio between RADEM-PDH and ERNE-HED when RADEM-PDH flux is three standard deviations above background (dot-dashed pink line in the top panel), and A1 and A2 are between –1 and 1; (3) first- and second-order anisotropies (A1 and A2) calculated using the Wind spacecraft 3D Plasma Analyzer; and (4) JUICE-SOHO distance. Further details are given in the main text.