After a journey of 1.8 million km / 1.1 billion miles the A very exciting mission OSIRIS-REx has its target in sight – Asteroid Bennu. After a two-year journey the spacecraft is finally in the “approach phase” of the mission
OSIRIS-REx will arrive at Bennu on 03 December. There is a lot to do and learn before then.
“During the mission’s approach phase, OSIRIS-REx will:
regularly observe the area around the asteroid to search for dust plumes and natural satellites, and study Bennu’s light and spectral properties;
execute a series of four asteroid approach maneuvers, beginning on Oct. 1, slowing the spacecraft to match Bennu’s orbit around the Sun;
jettison the protective cover of the spacecraft’s sampling arm in mid-October and subsequently extend and image the arm for the first time in flight; and
use OCAMS to reveal the asteroid’s overall shape in late-October and begin detecting Bennu’s surface features in mid-November.” — NASA