In 2293, she was assigned a diplomatic mission to the planet Zald in Sector 21399. (TOS movie: The Undiscovered Country, Decipher RPG module: Starfleet Operations Manual) The Korolev was represented by the silhouette of a refit Constitution-class heavy cruiser in a star chart. Her captain's name and ship's location were on a page of the command briefing of Operation Retrieve not seen in the movie. The Decipher RPG module: Starfleet Operations Manual identifies this ship as a Miranda-class medium cruiser.