In 2266, Starbase 15 was the closest base to the USS Enterprise when she encountered the telepathic group hive mind labeled "The Winged Dreamers". (TOS short story: "The Winged Dreamers") The dating of this story is from the Trowbridge Timeline. In 2376, contact was lost with Starbase 15 when a "dead zone" formed in the vicinity. (TNG novel: Dead Zone) In the late 23rd century, Starbase 15 was the home of the 2nd Andorian and 12th Pursuit Groups of Scorpio-class corvettes. (FASA RPG module: Federation Ship Recognition Manual)