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GPS
*** GPS CNAV Testing Data ***
GPS General Information
GPS Mapping Problems
GPS Status and Outage Information
NANUs, Almanacs, & OPS Advisories
GPS Service Interruptions
Subscribe to List Serve Msgs
Space Wx & Precise Ephemeris Data
Frequently Asked Questions (FAQ)
GPS Augmentation Systems
Reference Information
GPS Modernization
Report a GPS Problem
Primary Mission Areas:
Nationwide DGPS
Long Range Identification and Tracking
Nationwide AIS (NAIS)
Local Notice to Mariners
Light Lists
Civil GPS Service Interface Committee
Global Positioning System
Electronic Navigation & Charting
LORAN C (archive)
Services & Reporting:
Receive Free LNM Updates
Receive Free GPS Status Messages
Receive NANU Updates
Join CGSIC (free)
Report an ATON Discrepancy or Outage
Report a GPS Problem
Report an NDGPS Problem
Report an LRIT Problem
Report an NAIS Problem
Contact Us
Maritime Information:
USCG 'Homeport' Website
Maritime Telecommunications
CG Nat'l Distress System
Global Maritime Distress and Safety System
Marine Safety Information Broadcasts
MF & HF Channels
Nav Pubs and Documents
Radio Watch Requirements
Vessel Traffic Services
VHF Channels & Freqs
GPS CNAV TEST RESULTS
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Julian Day 169
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