Chart correction N51/20 — chart 44443
44443 1Ed. 8/1/09 LAST NM N47/20 N51/20 Change Light to Dir Iso WRG 2s 10m 2M with sectors green 167.5°-169.5°, white-171.5°, red-173.5° 56°31′22.1″N 20°58′41.4″E (11(279-281)20 Riga)
Source: NGA U.S. Notice to Mariners · edition: 1Ed. 8/1/09
Reference information — always verify against official Notices to Mariners before navigation.