In Top Gun Maverick (2022), Capt Pete and his squadrons enters enemy terittory meanwhile they noticed two bandits on the radar:
Pheonix: Comanche, what's their heading?
Comanche: Bull's-eye 090, 50, tacked southwest.
Wingman: They're headed away from us. They don't know we're here.
What does "Bull's-eye 090, 50, tacked southwest" mean?