Importance

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Abstract

A spacecraft bus system described herein includes a propulsion assembly, a top plate assembly, and a bottom plate assembly. Each one of the propulsion assembly, the top plate assembly, and the bottom plate assembly is configured to be separately assembled and tested for spaceworthiness. Also described herein is a propulsion assembly for use with a spacecraft. The propulsion assembly includes a propellant tank containing propellant therein, at least one thruster, and a frame configured for supporting the propellant tank and the at least one thruster thereon. The propulsion assembly, as an individual module, is configured to be assembled and subjected to testing related to spaceworthiness. Additionally, the frame may be further configured for attachment to other components of the spacecraft, after being assembled and subjected to testing, without modification to the propulsion assembly or the other components of the spacecraft.

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First Claim