GATE_LO

Where the mare gate opens and closes, on a lobe that runs −1.55 to 1.55.

Narrow, and offset well above zero, so that the gate is a decision rather than a modulation: the basins on the near side flood and the basins on the far side are dry highland. Opened wide instead, every basin on the body floods a little, which is a world with gray basins rather than one with maria — and no threshold on the basin depth produces the asymmetry, because the basins are not asymmetric. The flooding is.

universe/src/cover.ts:161