Three LOFAR maps produced using three different methods. a: a CLEAN map made via standard interferometric imaging (STIM) at 10:59 UT. b: a map made by summing the Imdiff produced by differencing consecutive CLEAN maps, 1 min apart (IMD). c: a map made by summing the Imdiff, made by differencing consecutive visibility data, 1 min apart (VISD). Each map is normalised and the contours are 50−95% the max intensity. The solid white circle is the visible solar limb. The white crescent is the area not de-occulted by the moon.
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