The following diagram shows the times (TDB) when Bennu (blue bars) or the Earth (red bars) is in the FOV of an on-board instrument (note, however, that it doesn't mean that the instrument is actually working at that time). The row called "Burn" shows the time during which the s/c maintains the same orientation used during a given maneuver (the angular separation between the +Z direction maintained during a burn and the instantaneous +Z direction is less than 0.5 degrees). The row "Attitude" shows the time during which the s/c is varying its attitude (the magnitude of the s/c angular velocity w.r.t. an inertial frame is greater than 5 deg/min).
For the calculations, Bennu is modeled as a triaxial ellipsoid. Very detailed information about the spacecraft structures and science instruments can be found here: eoPortal Directory - OSIRIS-REx, Sensor complement.
Select an instrument:
The table is a numerical version of the above diagram.