When was the the ship launched ,that along with the Tripitz and the Lützow was a target for  Operation Source ?
German battleship Scharnhorst Scharnhorst was a German capital ship, alternatively described as a battleship and battlecruiser, of Nazi Germany's "Kriegsmarine". She was the lead ship of her class, which included one other ship, "Gneisenau" . The ship was built at the "Kriegsmarinewerft" dockyard in Wilhelmshaven; she was laid down on 15 June 1935 and launched a year and four months later on 3 October 1936. Completed in January 1939, the ship was armed with a main battery of nine 28 cm (11 in) C/34 guns in three triple turrets. Plans to replace these weapons with six 38 cm (15 in) SK C/34 guns in twin turrets were never carried out.
SS Admiral Nakhimov SS "Admiral Nakhimov (Russian: Адмирал Нахимов ), launched in March 1925 and originally named SS "Berlin, was a passenger liner of the German Weimar Republic later converted to a hospital ship, then a Soviet passenger ship. On 31 August 1986, "Admiral Nakhimov" collided with the large bulk carrier "Pyotr Vasev" in the Tsemes Bay, near the port of Novorossiysk, Russian SFSR, and quickly sank. In total, 423 of the 1,234 people on board died.