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Fig. 1


GOES 13 X-ray flux on the 6 September 2017 in the 0.1– 0.8 nm (top) and 0.05 – 0.4 nm (bottom) energy channels. The three light gray regions indicate the pre-flare, interim, and post-flare phases, which were used to compute horizontal proper motions (Fig. 4). The two narrow, dark gray regions refer to the time intervals for computing the white-light flare kernels (Fig. 2).

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