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. 2019 Apr 10;124(4):2588–2602. doi: 10.1029/2018JA026259

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©2019. The Authors.

This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc-nd/4.0/ License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made.

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Polar plots for 4.2‐MeV channel for 17 March 2013. (a) Pattern for ~0100UT. (b) For ~1000UT. (c) For ~2300UT for times shown. ECT = Energetic particle, Composition, and Thermal plasma; REPT = Relativistic Electron‐Proton Telescope.