Integrated Orbital Propellant Aggregation Architecture for Cryogenic Tanker-to-Depot Campaigns at Starship Scale

Integrated orbital propellant aggregation architecture for a Starship-class fully reusable launch vehicle, addressing in a single operational system and across a multi-flight aggregation campaign six concurrent cryogenic fluid-management challenges: passive plus active suppression of propellant boil-off across a multi-week low-Earth-orbit hold; zero-gravity acquisition of liquid cryogen at the tank outlet across continuous and start-stop flow regimes; slosh mitigation across the transfer-duration-scale fundamental mode at coast-gravity conditions; mass gauging to sub-one-percent aggregate accuracy across multi-transfer campaign durations; cryogenic androgynous berthing with fluid-transfer interface meeting fleet-scale mate-demate cycle life; and attitude control of the mated-tandem stack across live mass transfer and a continuously drifting center of mass. The architecture comprises six coordinated subsystems with specified composition windows, power budgets, component specifications, and operations sequences. A worked example at a fifteen-flight aggregation campaign delivering 1500 metric tons to a Mars-departure receiver, alternative embodiments, a prior-art enumeration with distinction from each cited reference, and an enablement statement accompany the detailed description. Published as defensive publication under 35 U.S.C. §102. Companion research note "Tanker aggregation and the Starship propellant horizon" describes the same subject matter in a narrative register. Full numerical audit, citation verification, prior-art sweep, steel-man attack classification, and disclosure-tier verdict included as supplementary materials.