Nummer: 00823
| Area : | Western Area |
| Sea area : | North Sea |
| Date of minelaying : | 20.12.1939 |
| Nationality of U-boat : | German |
| U-boat : | U 22 |
| Commander : | Jenisch |
| Grid : | AN 5461 |
| presumed target type : | --- |
| presumed tonnage : | ---- --- |
| presumed result : | hit not ascertained |
| Used weapon(s) : | Sea mine(s) |
| Date of sinking : | 20.12.1939 |
| Time of sinking : | 14:30 |
| Nationality of target : | Swedish |
| Actual type of target : | Steam Freighter |
| Name of target : | Mars |
| Year of launch : | 1924 |
| Actual tonnage : | 1877 BRT |
| Actual result : | sunk |
| Position of target : | 1sm E St.Mary's LV. (Blyt |