The goal of the PR3 experiment is twofold: our primary objective is to demonstrate the feasibility of using radio-interferometry to track to location and orientation of REXUS in flight. Our secondary objective is to use commercially available off-the-shelf camera modules to measure radiation during flight. When correlated, these two objectives can provide a very accurate mapping between radiation dose and position/orientation of the camera sensors.

The radio-interferometry experiment will carry three transmitters on REXUS as a payload. Each of these transmitters will be tracked by several ground stations placed near the launch site. Based on what the ground stations measure, the position and orientation of the rocket can be established. The goal is to provide real-time tracking of REXUS while in flight.

The radiation measurement experiment will carry several off-the-shelf cameras on REXUS as a payload. When a particle strikes the camera sensor a flash will occur at one or more pixels.

The brightness and number of pixels that light up give an indication about particle energy. The goal of this experiment is to establish what camera properties work best for particle counting.