AT: "at" The USS Pasteur (NCC-58925) was a 25th century Federation Olympic-class starship operated by Starfleet. The Pasteur was constructed by the Skywalker Division at the Marin County Starfleet Yards.
In an unknown, alternate future timeframe, this medical ship was commanded by Captain Beverly Picard. The ship was destroyed by two Klingon attack cruisers after the Pasteur crossed the Klingon border to scan the Devron system for a temporal anomaly. However, the survivors of the attack were rescued beforehand by the USS Enterprise-D, under the command of Admiral William T. Riker. Among the Pasteur's crew of that timeline was Ensign Nell Chilton, who died during the Klingon attack. (TNG: "All Good Things...")