Full-field overviews for data A (upper row) and data B (lower row). First column: Hα blue-wing intensity at Δλ = −0.8 Å. Second column: Hα line-center intensity 4 min later. Third column: Hα red-core intensity at Δλ = +0.4 Å about 6 min after the first column. Each panel is bytescaled independently. The data A images start at the best-seeing moment. The data B images sample the Pub B PHE, contrail fiber, and return aftermath. The timings are marked by triangles in Fig. 2. Online blinkers for these images (for page flipping per pdf viewer in single-page, fit-to-page, or full-screen mode): 1–2, 1–3, 4–5, 4–6).