GPS Test Center of Expertise

摘要

The 746 Test Squadron, based at Holloman Air Force Base in New Mexico, provides archived almanac data in SEM3.6 and YUMA formats and a special almanac detailing the short GPS week, observed range errors as viewed from the GPS Satellite Reference Station at Holloman Air Force Base, constellation status, and user advisories. Information dates back to 1992 and is available 24 hours a day. The site also will soon offer links to the GPS Test Center of Expertise legacy databases.