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- W156770963 abstract "With recent technological advances, small satellite systems have evoked great interest from both commercial and military sectors. These systems offer reductions in both development time and mission cost, which make them attractive alternatives to the large systems in use today, especially for developing space nations. Small satellites are inherently less capable due to their resource constraints, yet as technology advances, a widening array of supportable missions may be enabled. Due to this, it is important for future Space Situational Awareness (SSA) applications to understand and analyze the capabilities and limitations of these small systems. In order to achieve this, a subsystem-by-subsystem analysis approach may be employed to define the capabilities of each sub-system that may be found in a small satellite. This study is intended to analyze the propulsion sub-system and define an upper bound for translational performance in micro-satellites. During the study, each element of the propulsion subsystem was characterized in terms of the satellite size to define the metrics that have the greatest effect on the overall performance. Both monopropellant and cold gas propulsion, which are proven and viable options for small satellites, were chosen for the analysis. From this study, conclusions can be drawn for both systems that identify the upper bounds of available Delta-V in terms of the sub-system and overall satellite size. APPROACH & ASSUMPTIONS Before beginning the analysis, assumptions were made to place boundaries on the satellite and system size parameters. First, the satellite size range will be constrained in order to focus the study on the “smallsat” regime. The starting point for the satellite size spectrum to be analyzed will be defined as a 10 cubic centimeter, 1 kilogram, CubeSat. Currently, CubeSat development can be found in the commercial and government sectors alike due to their promise of reduced cost and development time. Therefore, these satellites are a logical lower bound for this study due to an increased interest to use them as test-beds for new technology development and demonstration. The upper bound for satellite size has been defined as a 100centimeter cube with an estimated weight of between 100 and 150 kilograms. This will allow for analysis in the classifications of pico, nano, and microsatellites. For the entire range, the satellites will be assumed to be cube shaped as alternative geometries present more complicated considerations that may be the topic of future studies." @default.
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- W156770963 date "2010-01-01" @default.
- W156770963 modified "2023-09-27" @default.
- W156770963 title "Small Satellite Capability Analysis: A Systems Approach for Defining Translational Performance in Small Satellites" @default.
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