Final Commissioning of the PRISMA GPS Navigation System

摘要: The primary relative navigation system of the PRISMA technology demonstration mission is based on GPS. satellites have been launched in June 2010 and, since their separation August, successfully conducting a multitude autonomous formation flying and on-orbit servicing experiments. onboard relies GPS measurements to provide real-time accurate absolute navigation. output GPS-based used feed numerous on-board feedback controllers safety monitoring collision avoidance functions. As consequence has utmost accuracy experimental payloads at same time, be robust reliable support fault detection isolation recovery tasks. commissioning GPS navigation therefore crucial milestone for mission. It ensured that solution always even presence hardware anomalies performance satisfies requirements. assessment done using precise orbit products generated by ground facility determination which needs, turn, also commissioned. paper summarizes activities performed validate both presents key flight results illustrate overall performance.