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A new method for determining which stars are near a star sensor field-of-view

Russell E. Yates, John D. Vedder

Abstract

A new method is described for determining which stars in a navigation star catalog are near a star sensor field of view (FOV). This method assumes that an estimate of spacecraft inertial attitude is known. Vector component ranges for the star sensor FOV are computed, so that stars whose vector components lie within these ranges are near the star sensor FOV. This method requires no presorting of the navigation star catalog, and is more efficient than tradition methods.

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Available abstract

Key concepts: Star (game theory), Stars, Physics, Field of view, Spacecraft, Component (thermodynamics), Field (mathematics), A* search algorithm