Paper 1 §5 figures (2026-10-07)

Built from perband_v3_20261005 (five FFIs, training frame each). Full record, numbers and limits: README.md; plan: FIGURE_PLAN.md.

5.1 Per-band templates

per-band templates — Zoom of the Fig 5.3a region at template sampling: band sum, template colour, band shares.

5.2 Kernel bases and checks

kernels — P0, P1, E_b and K0, K1, K_b at three nodes (S24 C2K2); arrow to the optical axis.

kernel checks — (a) kernel sums, 5 fields; (b) linearisation error vs colour; (c) native-pixel reconstruction (S24 C2K2).

5.3 Final image and image-level evidence

region — Catalogue-chosen region: FFI, preliminary, final, preliminary − final, Hotpants − final; row 2 = 64 px zoom.

colour metrics — χ², radial dipole and aperture residual vs BP−RP, five fields, set H (13 ≤ T < 16).

colour stacks — The stacks these numbers are measured on: blue, red, red − blue, shared ±1.2 % scale.

Five-field table: table_s5_g4.md (csv, tex).

5.4 Refit stability

refit — Refit on the final image − calibration fit; shaded = tolerances. Flux trend follows the preliminary image's background pedestal (retest running).

5.5 Photometry (bright stars)

photometry — Fluxes on the final image vs Gaia-XP synthetic T; the T > 13 targeted-extraction half still needs a rerun on these images.