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Mike's Global Positioning System

Earth Picture

GPS Constellation History and Status

Latest US Coast Guard Differential GPS Status

NGS CORS Information

Latest GPS Status Message

Active Notice Advisory to Navstar Users

Latest Notice Advisory to Navstar Users

GPS General Information

GPS Facts and Figures

GPS Satellite Availability

Archive of Notice Advisory to Navstar Users

GPS Week/Julian Date Conversion Calendar

DGPS Site Coverage Map

Differential GPS General Information

Latest GPS Almanac (Yuma Format)

Latest GPS Almanac (SEM 3.5 Format)

Latest GPS Precise Ephemeris Data

GPS Data Archives

GPS Technical Reports

DGPS Safety Notice

The Coast Guard Differential GPS Service at a glance


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