The present disclosure provides a controller and a method for controlling an operation of a vehicle subject to constraints based on continuously parametrized sets (CPS). The controller comprises at least one processor and a non-transitory memory having ins...

Techniques are provided to determine an initial quaternion transform that is used to transform measurements received from accelerometer, rate sensor and inertial reference subsystems from a vehicle coordinate frame to an inertial navigation frame. Methods ...

The activator has a support (116) mounted on a base (110) and rotated around an axis (120) by a direct current torque motor (124). The support holds a spinner (134) rotated around an axis (132) that is perpendicular to the axis (120), by a torque motor (14...

Attitude acquisition methods and systems are provided which reduce the time generally required to acquire spacecraft attitude estimates (76) and enhance the probability of realizing such estimates (76). The methods and systems receive, over a time span t, ...

A method for use on a satellite that automatically inhibits scanning of an Earth sensor to handle sensor intrusions by the sun, moon, or other celestial bodies. In implementing the method, a predicted state vector for the satellite, derived from an orbit p...