Attitude Determination and Control System

The ACS/GNC team is responsible for tracking and maintaining the attitude and position of the vehicle. The team is responsible for the design and integration of all sensing and actuating mechanisms on the OSMV, including the necessary code or electronics boards.

For attitude sensing, the OSMV will have a sun sensor that rotates with one solar array at its base, a 3-axis rate gyro and accelerometer, and 2 magnetometers. To correct and maintain the attitude, a reaction wheel parallel to the thrust axis will provide attitude correction around that axis, the gimbaled main engine will further correct or maintain the attitude in the remaining 2 directions, and 12 N2 cold gas thrusters will provide 3-axis stabilization particularly for de-tumbling prior to commissioning and after each eclipse.

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