When was the the ship launched ,that along with the Tripitz and the Lützow was a target for  Operation Source ?
Operation Source Operation Source was a series of attacks to neutralise the heavy German warships – "Tirpitz", "Scharnhorst" and "Lützow" – based in northern Norway, using X-class midget submarines.
German submarine U-2352 German submarine "U-2352" was a Type XXIII U-boat of Nazi Germany's "Kriegsmarine" during World War II. She was ordered on 20 September 1944, and was laid down on 9 October 1944 at Deutsche Werft AG, Hamburg, as yard number 506. She was launched on 5 December 1944 and commissioned under the command of "Oberleutnant zur See" Sigmund Budzyn on 11 January 1945.