Back-illuminated, thin photodiode arrays with trench isolation. The pitch-over thrusters create rotational moments that directly pitch and yaw the flight vehicle. A vertical diode formed in the semiconductor surface surrounds the first nwell including a pwell on top of a floating NBL ring. The material forming an outer surface of the outer wall may be removed to be flush with an innermost point in each groove, thereby reducing the wall thickness and increasing efficiency. Various embodiments are useful and may have several advantages in several venues, such as coffee shops, hotels, train stations, law offices, marinas, truck stops, fueling stations, restaurants, and stores, among others.