Chart correction N48/20 — chart 61581
61581 6Ed. 5/30/15 LAST NM N42/20 N48/20 Add Submarine cable [L30.1] joining 21°00.3′S 55°16.4′E 21°00.0′S 55°15.5′E 20°59.5′S 55°14.9′E Submarine power cable [L31.1] between 20°55.7′S 55°17.9′E 20°55.2′S 55°17.9′E (39(184)20 Brest)
Source: NGA U.S. Notice to Mariners · edition: 6Ed. 5/30/15
Reference information — always verify against official Notices to Mariners before navigation.