Time-delay scatter analysis in reverse of Fig. 10 for the data B network only. Upper images: darkest-pixel core samplings at Δλ = +0.4 Å. Only the green contours differ. Lower images: at the left we show the darkest value per pixel at Δλ = −0.8 Å to select preceding RBEs during 5 − 2 min before the upper-image pixel sampling times, and at the right we show this at Δλ = +0.8 Å to select preceding RREs. Scatter diagrams: corresponding pixel-by-pixel correlations. The green boxes and contours select darkest red-core pixels without preceding blue-wing or red-wing darkening, respectively. Online image blinkers: 1–3 and 2–4 without contours, 3–4 with contours.