Utilization of Space-Based TDoA and FDoA for Cislunar Orbit Determination

Utilization of Space-Based TDoA and FDoA for Cislunar Orbit Determination

Presented at the Advanced Maui Optical and Space Surveillance Technologies (AMOS) 2022 Conference

Michael R. Thompson, Matthew D. Popplewell, Bradley Cheetham

ABSTRACT

This study evaluates the potential observability benefits of space-based passive RF systems compared to other ground-based and space-based observers for cislunar Space Domain Awareness. TDoA and FDoA observations are used for orbit determination of objects in the lunar vicinity using observers in GEO and XGEO. The results are compared to ground-based observations in order to analyze the performance gains over existing architectures. Results show using space-based systems result in faster filter convergence and more accurate state estimates.

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Cislunar Orbit Determination and Tracking via Simulated Space-Based Measurements

Cislunar Orbit Determination and Tracking via Simulated Space-Based Measurements

Michael R. Thompson, Nathan P. Ré, Cameron Meek, Bradley Cheetham

ABSTRACT

Building on previous work in cislunar orbit determination at Advanced Space, this paper demonstrates cislunar orbit determination via simulated optical measurements from another spacecraft in cislunar space. The goal of this work is to evaluate the potential performance (in terms of the uncertainties in the state of a target object) of space-based optical tracking filters in the vicinity of the Moon.

Presented at the Advanced Maui Optical and Space Surveillance Technologies (AMOS) 2021 Conference