Nummer: 20404
| Area : | Arctic Ocean |
| Sea area : | North Norway |
| Date of attack : | 25.01.1944 |
| Time of attack : | 18:33 |
| Nationality of U-boat : | German |
| U-boat : | U 360 |
| Commander : | Becker |
| Grid : | AC 4451 |
| presumed target type : | Destroyer |
| presumed result : | sunk |
| Number of torpedoes/mines : | 1 |
| Used weapon(s) : | Acoustic homing torpedo (gnat) |
| Convoy : | JW.56A |
| Date of observation : | 25.01.1944 |
| Time of observation : | 18:30 |
| Nationality of target : | British |
| Actual type of target : | Destroyer |
| Name of target : | Obdurate (G.39) |
| Year of launch : | 1942 |
| Actual tonnage : | 1540 ts |
| Actual result : | damaged |
| Position of target : | 73.28n 21.30e |
| Convoy : | JW.56A |
| Route of convoy : | Loch Ewe - (Iceland) - Kola Fjord - (Arkhangelsk) |
| Remark to convoy : | Since Dec 1942, former PQ (counter traffic = RA) |