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Continue to ChatGPS System Improved as New Boeing Satellite Enters Service https://aviationnews.eu/news/2013/07/gps-system-improved-as-new-boeing-satellite-enters-service/
GPS System Improved as New Boeing Satellite Enters Service https://aviationnews.eu/news/2013/07/gps-system-improved-as-new-boeing-satellite-enters-service/