Fuel computer

Fuel computers were components of starship computer systems that kept track of when and where a ship had been refuelled. The Jedi Order had a trick, primarily used to catch smugglers, of cross-referencing locations someone was known to have visited with where they had refuelled so they could deduce where else the target may have gone. In 21 BBY, Anakin Skywalker and Ahsoka Tano used this on the Xanadu Blood, a starfighter owned by bounty hunter Cad Bane, to deduce the location of several Force-sensitive children he had been hired to kidnap, and found that he had taken the children to the planet Mustafar. This allowed them to set out on a rescue mission.

Text and facts from the “Fuel computer” article on Wookieepedia, licensed under CC BY-SA 3.0. Modified for this site.