def circle_left(self, radius_m, velocity=VELOCITY, angle_degrees=360.0):
        """
        Go in circle, counter clock wise

        :param radius_m: The radius of the circle (meters)
        :param velocity: The velocity along the circle (meters/second)
        :param angle_degrees: How far to go in the circle (degrees)
        :return:
        """
        distance = 2 * radius_m * math.pi * angle_degrees / 360.0
        flight_time = distance / velocity

        self.start_circle_left(radius_m, velocity)
        time.sleep(flight_time)
        self.stop()