Optical Range and Orientation System for Microsatellite Constellation

To address MDA needs for innovative concepts in precision navigation and associated guidance and control systems for microsatellites and microsatellite constellations, Physical Optics Corporation (POC) proposes to develop a new Optical Range and Orientation System (OROS), applying the principles of absolute distance interferometry to precisely measure distances to three separate retroreflectors, installed on each microsatellite in the constellation. The results of these measurements will determine the relative locations and orientations of the microsatellites. The OROS system will have a performance range up to a few kilometers and an accuracy within the submillimeter range. OROS will significantly enhance the capability of microsatellite constellations to operate in flight formation and to perform tasks such as simultaneous multiperspective observation of Earth with unprecedented accuracy. In Phase I POC will demonstrate the feasibility of the OROS concept by developing a working system model and installing it on a moving platform. In Phase II, POC plans to develop a full-scale OROS prototype with electronic interfaces, and to test and evaluate this system in preparation for launch.