This paper proposes a method for relative navigation of formation flying spacecraft. This method utilizes azimuth and elevation angle information as well as light intensity data gathered from a photometric sensor to estimate the relative position and velocity between collaborating spacecraft. An Unscented Filter is successfully used for the state estimation and initial proof of concept. A basic measurement model simulates the deputy spacecraft as a simple sphere that only reflects light diffiusely. This study motivates further investigation into the potential for using this method for inexpensive and reliable relative navigation systems.