Topical Issue - Space Weather Instrumentation
Open Access
Technical Article

Fig. 3

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Images from the four instruments taken on 30 September 2016 around 10:26 UT. The L1 Hα refractor is on the top left panel; L2 CaII K refractor on top right; C1 coronagraph in Hα at the bottom left; and C2 coronagraph in HeI at the bottom right.

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