Properties of ghosts brighter than G = 20 mag originating from single stars in the range G = 6–20 mag. Panel 1: across-scan rejection plot of ghosts, showing ghosts in the across-scan wings as red symbols and ghosts in the along-scan wings as black symbols. Panel 2: as Panel 1, but for the along-scan direction. Panel 3: average number of ghosts that a (parent) star of magnitude G generates. This is essentially the same plot as Panel 3 in Fig. 7 but for an extended magnitude range of parent stars and shown on a logarithmic scale. The black curve denotes all local maxima associated with ghosts, the blue curve – mostly overlying the black curve – denotes those local maxima passing the optimised rejection parameters defined in Sect. 5, and the red curve denotes those local maxima passing the functional-baseline rejection parameters. The dashed blue curve represents the alternative set of optimised parameters with reduced ghost sensitivity, as discussed in Sect. 6.4.
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