Although the roots of angles-only orbit determination extend back to the times of Laplace in the late 1700's, most of today's astrodynamics community has been uncertain as to the applicability of angles-only estimation techniques for accurate satellite orbit determination. This approach provides a modestly robust method of sequentially processing angles-only information and, combined with increased availability of high accuracy angular observations in recent years, provides an attractive method for certain orbit determination applications. In addition, the combination of such accurate angular information with other sources (e.g. ranging data) offers the prospect of significant improvement in the ability to predict an object's motion. This paper addresses the use of angles-only information in the orbit determination processes by utilizing real world test cases from Air Force Research Laboratory (AFRL) assets. Specifically, single-site angles-only sequential estimation is performance to produce accurate orbit predictions of future passes over the site. The results demonstrate the utility of precise angles information in the context of high accuracy orbit determination.
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