Sesa Americom, Inc.

Ronald Capozzi

Henry White

Nicholas Vespasian Chilelli

Michael Pritchard

Susan Peyton

Emmett Hume

A system and method for controlling a propulsion system of a space-borne object (e.g., a satellite) is based on the principle that temperature in the propellant tank of the propulsion system is directly proportional to the pressure therein. Accordingly, when pressure drops, the system and method maintains a desired pressure in the propellant tank by heating the tank. The amount of heat to be applied is determined based on an evaluation of thruster performance data collected during satellite test maneuvers. Heating of the tank may be coupled with the introduction of helium gas to provide a two-pronged approach for maintaining tank pressure. Alternatively, the helium gas may itself be heated prior to its introduction into the propellant tank. By maintaining a desired tank pressure, efficient performance of the satellite thrusters is assured.

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Little Silver, NJ, United States of America

Ronald Capozzi