Left column: examples of median COR2 images showing the rapidly changing position angle of the plasma tail (indicated by orange arrows). The anti-Sun (−S) and antiorbital velocity (−V) directions are indicated by solid and dotted arrows, respectively. Middle and right columns: the superimposed loci of synchrones and syndynes computed with same parameters as in Figure 4. Celestial north is up and east to the left. The region shown is ∼0.°6 × 0.°5 (150 × 120 pixels).