Choose the minimal set of captures whose clear ground covers the AOI within one temporal epoch. Returns coverage, the true date span, and what is left uncovered. Buys nothing.

Stop once this fraction of the AOI is covered by clear ground.

Hard limit on the date range of a composite. A stack spanning months is not a single-date image; sun angle, shadow length and vegetation all differ. Set 0 to forbid compositing entirely.

ISO date to prefer captures near, e.g. 2026-03-15

How hard to pull toward target_date. 'off' ignores it; 'balanced' lets it break ties and order a series without buying a worse capture; 'strict' outweighs even a billing step, for work where the date matters more than the price.

Smallest share of the AOI a capture must add to be worth taking, when taking it does NOT push the order into a higher billing multiplier.

Whether a capture may push the order into a higher billing multiplier at all. False caps the order at its current multiplier.

How much a capture must add before it is allowed to cross a billing threshold. Guards against buying 2% more ground for twice the price.