1. U.S. COAST GUARD NAVIGATION CENTER FY 2003 LORAN PERFORMANCE LCDR MAX CARUSO, NAVCEN OPS

2. FY03 LORAN-C Performance  Another year of recapitalization, system modernization and solar activity!

3. FY03 CHAIN AVAILABILITY

4. FY03 STATION AVAILABILITY

5. FY03 STATION AVAILABILITY without “AUTM & Natural Causes”

14. FY03 Review Chain / baseline availability : 99.71% Station availability: 99.83% Excluding authorized maintenance & solar / weather: 99.98% Many major improvement projects Major solar impacts

15. FY04 Preview Major solar impacts: –Total solar blink for 7960 in FY03: 9919 min –Total solar for 7960 in Oct 03: 6827 min Continued system improvements: –Improved timing suite –New solid state transmitters

16. Thanks to NAVCEN personnel: LT Luci Bookhammer LT Bill Broome LT Jim Bailey CWO Scott McDonald CWO Mike Wills ET1 Rich Nutting ET1 Wynne

17. Your Questions?

18. FY02 AVAILABILITY (less AUTM)

19. FY02 AVAILABILITY (less AUTM & Solar)

20. Many thanks to: LSU LORSTA George crew Megapulse Timing solutions NAVCEN ops & sys mgmt team For a job well done at LORSTA George

21. North American Loran-C System DESTIN MIDLAND WHIDBEY ISLAND FAIRBANKS COLD BAY GEORGE NARROW CAPE SHOAL COVE GILLETE NANTUCKET CARIBOU LSU GREAT FALLS GRAND JUNCTION GRANGEVILLE MALONE CAROLINA BEACH MONTAGUE LUMSDEN COMFORT COVE ST. ANTHONY DUNBAR FOREST BAUDETTE HAVRE SPOKANE PORT HARDY SAND SPIT JUNEAU TOK GALENA PORT CLARENCE SPRUCE CAPE ST. PAUL PETROPAVLOVSK, RUSSIA ALEXANDROVSK, RUSSIA WILLIAMS LAKE MEDICAL LAKE PT. PINOS NAVCENDET PETALUMA PT. CABRILLO MIDDLETOWN FALLON SEARCHLIGHT LAS CRUCES BISMARK BOISE CITY LITTLE ROCK DANA NEW ORLEANS JUPITER INLET MAYPORT NAVCEN ALEXANDRIA PLUMBROOK SANDY HOOK CAPE ELIZABETH SENECA CAPE RACE FOX HARBOR RAYMONDVILLE ATTU CONTROL SITE TRANSMITTER STATION PCMS SITE USNO Monitor