“Rogues gallery” plot for the 2003 observation. This shows the 12-h average  ||ΔE||  per source, as seen by each antenna. Blue circles correspond to values of  ||ΔE||  > 1, red circles to values of  ||ΔE||  < 1, and areas are proportional to  |     || ΔE||  −1    | . Line thickness indicates the statistical significance of  |     || ΔE ||  −1    |; filled circles are for detections of over 3σ. The large grid circle is at radius 30′.