LiAISON Navigation

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We propose a new type of autonomous orbit determination called "Liaison Navigation." This stands for Linked, Autonomous, Interplanetary Satellite Orbit Navigation (LiAISON). Liaison Navigation is defined as the use of scalar SST data alone to determine the relative and absolute orbit states of all participating spacecraft. The advantages to Liaison Navigation are listed in the slide above. The spacecraft would not need Earth-based tracking data for orbit determination. This form of autonomous orbit determination is simple in that no special cameras or sensors are required. With real-time updates, the spacecraft could compute and execute station keeping manuevers autonomously and frequently to reduce the station keeping budget. The spacecraft could estimate their orbit states in real-time and then broadcast those states to user spacecraft. These user spacecraft could use the signals from the constellation as navigation beacons.

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