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"Imperial XX-23 S-thread tracker was developed by Sienar Systems to trace ships through hyperspace to destination."

The Imperial XX-23 S-thread tracker,[1] also known as the XX-23 S-Thread Tracer,[2] was a homing beacon developed by Sienar Fleet Systems to track ships through hyperspace to their destination. The tracker was able to be launched from the warhead launcher of a TIE Advanced v1 starfighter and was used by the Grand Inquisitor to track the Ghost.[1]


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