A Sikarian transport technology that folds space to move people up to 40,000 light-years in an instant, denied to Voyager in 2371 and later found aboard the Borg Artifact.
The spatial trajector is the pride of the Sikarians, a hospitable Delta Quadrant people. It works by folding space and can send a traveller across tens of thousands of light-years.
In the Voyager episode Prime Factors, the Sikarian magistrate Gath refuses to share it, citing his people's own law against giving technology away. Tuvok, with Torres, Seska and Carey, trades the ship's library of literature for a trajector matrix behind Janeway's back. The device proves to depend on the crystalline mantle of Sikaris, is incompatible with Federation systems and nearly destroys the warp core.
A trajector reappears in the Picard episode The Impossible Box. The Borg had assimilated the Sikarians, and Hugh uses the unit in the Artifact's queencell to send Picard and Soji to Nepenthe.