Inertial navigation systems (INSs) are important to space exploration as they can calculate the location, orientation, and velocity of a moving object such as a spacecraft. INS devices typically use accelerometers, which are motion and rotation sensors, to communicate with a computer and translate the data into actionable controls. UCLA’s optomechanical accelerometer precisely determines the position of a space vehicle without needing external signals. By operating with noise floor levels close to the thermomechanical theoretical limit, this accelerometer provides an order of magnitude performance increase over existing technologies. It also has internal optical feedback, meaning that there is no need for an electrical feedback loop. Finally, the small size of the optomechanical accelerometer allows for further integration and miniaturization of the navigation sensor assembly.

Flight tests are expected to demonstrate the technology for the first time on a high-altitude balloon flight, providing the researchers with valuable data on its performance under real flight and environmental conditions. Additionally, the ability to follow a flight trajectory and the integration with the navigation algorithms is expected be assessed.

• Spacecraft, aircraft, and ship navigation • Aerospace defense industry (smart ammunition) • Smartphone location and tracking • Health tracking