Chart correction N11/23 — chart 44341
44341 9Ed. 12/08/18 LAST NM N51/22 N11/23 Add Buoy, pillar, "X" topmark, Fl(5) Y 20s with legend "ODAS (occas)" [Q58] 60°07′24″N 24°58′24″E Buoy, spherical, "X" topmark, with legend "ODAS (occas)" [Q58] 60°03′26″N 24°43′28″E (5(31)23 Helsinki)
Source: NGA U.S. Notice to Mariners · edition: 9Ed. 12/08/18
Reference information — always verify against official Notices to Mariners before navigation.