The NEO (175706) 1996 FG3 in the 2-4 μm spectral region: Evidence for an aqueously altered surface

► We conducted observations of Asteroid 1996 FG3 from the NASA IRTF. ► Absorptions attributed to OH in minerals seen on multiple nights. ► Absorptions consistent with what is seen on main-belt C asteroids. ► Existence of OH in minerals constrains heating seen at current surface. ► Fresh material likely available on FG3's surface for sampling missions.