# RoverDifferentialGuidanceStatus (UORB message) [source file](https://github.com/PX4/PX4-Autopilot/blob/main/msg/RoverDifferentialGuidanceStatus.msg) ```c uint64 timestamp # time since system start (microseconds) float32 lookahead_distance # [m] Lookahead distance of pure the pursuit controller float32 heading_error_deg # [deg] Heading error of the pure pursuit controller uint8 state_machine # Driving state of the rover [0: SPOT_TURNING, 1: DRIVING, 2: GOAL_REACHED] # TOPICS rover_differential_guidance_status ```