Localisation region of FRB 20190709A. In both panels, and in the localisation region figures that follow, the CBs at 1370 MHz are shown as white (non-detection) and green (detection) circles. In the left-hand side we show in the colour scale the simulated response of the SB in which the FRB was detected most strongly (cf. Fig. 12). On the right hand side, and in the follow figures, the red, elongated and very narrow area indicates the 90% confidence level localisation area that results from combining the SB detections and upper limits of all surrounding CBs. Background image here and in the following figures are from the Sloan Digital Sky Survey (SDSS; York et al. 2000).