LNBT hub coverage — United States

Lower 48. Alaska and Hawaii are the next sheets. Product rule: largest nearby catalog city whose solar noon is within 15 minutes of the cell (~3.75° longitude). Compare with unconstrained largest-nearby and pure nearest. Generated 2026-10-06 · step 0.25° · land 13773 cells.

Working verdict: Mixed blotch shapes. Product noon-cap 15 min: mean noon Δ 5.9 min (was 7.6 unconstrained). 11.4% of land cells change hub vs unconstrained; 0.0% still over cap (sparse catalog fallback).

5.9 minmean noon Δ · product

7.6 minmean noon Δ · unconstrained

0.0%land over 15 min · product

11.4%land over 15 min · free

11.4%cells that change hub

1.37mean strip-score (product)

Hover a land cell for hub + noon Δ. Dark = outside the land mask.

Hubs by product area