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.
SS Jan Pieterszoon Coen SS "Jan Pieterszoon Coen" was a Dutch passenger ship that was scuttled as a blockship during the German invasion of the Netherlands in May 1940 in the port of IJmuiden, North Holland to prevent the German Navy from entering the port.