NASA's OSIRIS-REx spacecraft executed its second Asteroid Approach manoeuvre (AAM-2). The spacecraft's main engine thrusters fired in a braking manoeuvre designed to slow the spacecraft's speed relative to Bennu from 141 m/s to 5.2 m/s. Likewise, the spacecraft's approach speed dropped from nearly 12,200 km to 450 km per day.

Source: OSIRIS-REx executes second asteroid approach maneuver