USS Leonov (NCC-648)

USS Leonov (NCC-648) was a science scout on active duty in Starfleet during the last quarter of the 23rd century. Leonov was commissioned sometime in the late 2270s.

Stephen Penik was Leonov's commanding officer in the early 2290s. {Star Trek: Avenger: "Crash")

Background
Leonov was named after both the cosmonaut  and the spaceship Leonov from 's 2010: Odyssey Two (filmed as 2010: The Year We Make Contact [1984]).