Chart correction N46/23 — chart 37228
37228 15Ed. 02/16/13 LAST NM N42/23 N46/23 Delete Depth 12.8 meters 53°52′03.1″N 9°04′03.3″E Depth 12.3 meters 53°51′55.5″N 9°03′38.3″E (See N11/21) Add Depth 8.3 meters 53°52′00.6″N 9°03′55.8″E Depth 9.2 meters 53°52′03.6″N 9°04′12.6″E Depth 9.8 meters 53°51′51.6″N 9°03′22.8″E and extend blue tint and depth contour (10-meter) NNW to enclose above depths (3) (43(1620)23 Hamburg; DEU CH 1620)
Source: NGA U.S. Notice to Mariners · edition: 15Ed. 02/16/13
Reference information — always verify against official Notices to Mariners before navigation.