Does anyone could link an image/3D model/photo that shows the 6 22-N engines?
Related question: OSIRIS-REx engines location.
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This article shows a picture of the whole OSIRIS-REx spacecraft and also shows an individual picture of the thruster.
The name of this engine is the MR-106L thruster and it uses Hydrazine Monopropellant fuel and has a specific impulse of 229 - 235 seconds. These engines are used to control the pitch and yaw during the main engine burn.
Here is an interactive 3D-model of OSIRIS-REx which you can use to locate the 6 thrusters. The 6 main 200 N thrusters are located at the bottom of the spacecraft, where the diagram above shows it. However, they have changed it to four main engines. All these 3-D models are outdated. The small six 22 N thrusters are located in the "rectangular area" beside the cluster of the main engines. There are 2 of these "rectangles". They don't look like thrusters in this model but it does in this Wikipedia model.