Homebrew Reference Book: Clone Wars Saga Edition Fan Sourcebook - Grand Army of the Republic (Part 2)
See also: Feats
Siniteen are famous for being able to calculate hyperspace jumps in their head.
Effect: You do not take a -10 penalty to your Use Computer check for performing Astrogation as a Full-Round Action. Further, to plot a jump with no data, it takes the Siniteen only one minute to calculate coordinates and vectors before attempted the DC 30 check.