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ESA’s Navigation Support Office supports ESA’s ATV-5 mission

5 August 2014 The Navigation Support Office supports again the ATV (Automated Transfer Vehicle) control center for its last mission.  Two weeks before the actual rendezvous with the ISS (International Space Station) it provides predictions on the expected position accuracy of the GPS receivers used for the relative orbit determination done on-board. Until a relative distance of about 250 m, ATV Guidance, Navigation and Control will rely on the embedded Relative GPS Navigation algorithm that uses the ATV GPS receiver data in combination with the ISS GPS receiver data received through a proximity link.