Patent Document ID: 20160282123
Application ID: 14865709
Patent Status: 0

Claim One:
1. A navigation system for a body comprising: one or more star tracking sensors mounted to the body; one or more inertial sensors mounted to the body; one or more processing devices coupled to the one or more star tracking sensors and the one or more inertial sensors; one or more memory devices coupled to the one or more processing devices, the one or more memory devices including instructions which, when executed by the one or more processing devices, cause the one or more processing devices to: determine a respective measured direction of each of a plurality of celestial objects with respect to the body based on an output of the one or more star tracking sensors; calculate an expected direction of at least one of the plurality of celestial objects with respect to the body based on a current navigation solution for the body; and calculate an updated navigation solution for the body based on the expected direction of the at least one celestial object, the respective measured directions of the plurality of celestial objects, and an output of the one or more inertial sensors.