Chart correction N51/23 — chart 52084
52084 3Ed. 04/13/13 LAST NM N37/23 N51/23 (Plan A) Change Shape of buoy to spar 38°34′31.2″N 0°01′53.4″W Shape of buoy to spar 38°34′22.8″N 0°01′41.4″W Shape of buoy to spar 38°34′07.2″N 0°01′59.4″W Shape of buoy to spar 38°34′15.6″N 0°02′12.0″W (48(447)23 Cadiz)
Source: NGA U.S. Notice to Mariners · edition: 3Ed. 04/13/13
Reference information — always verify against official Notices to Mariners before navigation.