The USS Scovil (NCC-1598) was a Federation starship that was in service with Starfleet in the late 23rd century.
The Scovil was conducting astronomical research near Klingon territory. (Star Trek VI: The Undiscovered Country)
Scovil was named for Charles Scovil, an American astronomer.
According to a ship listing included in the plans, and not seen in the extended cut of the movie, the ship's commanding officer was D. Hulett
, and the ship was located in Sector 21837
The ship's captain was named after the sixth movie's prop master Don Hulett