Skip to main content
Navigation Center
United States Coast Guard
U.S. Department of Homeland Security
☰
Nav Bar Menu - desktop
Home
Search
Nav Rules
BNMs
LNMs
GPS
Comms
MSI
AIS
VIVS
Ice Patrol
Archives
Home
Print
NAVCEN Main Menu - desktop
Home
Search
Resources
Maritime Safety Information
Nav Systems and Services
AIS Overview
GPS Overview
CGSIC
GPS Constellation
GPS NANUS, Almanacs, OPS Advisories, & SOF
GPS Problem Report Status
GPS Interruption Notices
Technical References
Space Weather
GPS References
GPS FAQs
GPS Acronyms Abbreviations
GPS Expandable Slot Designations
GPS Operational Advisory Tutorial
GPS Precise Ephemeris Info
GPS Selective Availability
L Band Antenna Panel Patterns
NANU Abbreviations and Descriptions
NavCen GPS Advisory
Sea to Air to Space
More Info on GPS.Gov
LRIT Overview
Nav Pubs and Documents
Charts and Supplies
Waterways
Contact Us/Report a Problem
NAVCEN Main Menu - mobile
Home
Search
Resources
Maritime Safety Information
Nav Systems and Services
AIS Overview
GPS Overview
CGSIC
GPS Constellation
GPS NANUS, Almanacs, OPS Advisories, & SOF
GPS Problem Report Status
GPS Interruption Notices
Technical References
Space Weather
GPS References
GPS FAQs
GPS Acronyms Abbreviations
GPS Expandable Slot Designations
GPS Operational Advisory Tutorial
GPS Precise Ephemeris Info
GPS Selective Availability
L Band Antenna Panel Patterns
NANU Abbreviations and Descriptions
NavCen GPS Advisory
Sea to Air to Space
More Info on GPS.Gov
LRIT Overview
Nav Pubs and Documents
Charts and Supplies
Waterways
Contact Us/Report a Problem
GPS Expandable Slot Designations
B
D
F
B5=B1F
D5=D2F
F5=F2F
B1=B1A
D2=D2A
F2=F2A
×