Gnisnal
this Imperial-class Star Destroyer was destroyed when it malfunctioned during the evacuation of Narth and Ihopek. The explosion that rocked the ship tore it nearly in half, and left behind major pieces of flotsam, including a fully-operative datacore. The New Republic junker Steadfast discovered the Gnisnal on a routine mission, and was able to recover the datacore. The information in the Star Destroyer's core was later used to identify the ships of the Black Fleet.