Seven of Nine and Ensign Kim reconfigured Voyager's Astrometrics Lab combining Borg and Starfleet technology. Used for mapping the quadrant and plotting courses to expedite the ship's voyage home.
Plays on ship (for free on U.S.S. Voyager). If 2 Stellar Cartography aboard, this ship may treat each mission as if its span were reduced by 1 (nebulas by 2).