Chart correction N35/23 — chart 37228
37228 15Ed. 02/16/13 LAST NM N32/23 N35/23 Add Buoy YB, spar, double cone topmark points downward [Q130.6] 53°45′02.5″N 9°25′27.2″E Depth 9.8 meters 53°53′08.4″N 9°12′36.6″E and extend blue tint and depth contour (10- meter) S to enclose (30(1640), 31(1620)23 Hamburg)
Source: NGA U.S. Notice to Mariners · edition: 15Ed. 02/16/13
Reference information — always verify against official Notices to Mariners before navigation.