Penelope Koh was the first officer of the USS Shabonee (NCC-64332). Her friends called her Penny. (Star Trek: Shabonee)
Koh was a native of Singapore on Earth.
When Daniel Radke signed aboard the USS Shabonee (NCC-19923) in 2369, Koh's position was second officer and operations manager. (Star Trek: Shabonee: "Divergence")
Upon Rafe Mahler's promotion after the Shabonee's destruction, Koh was promoted to first officer of the new Shabonee in 2370. (Star Trek: Shabonee: "Scream", "Dirge")
Koh, with the assistance of Radke and Michael Greene, successfully fought off the Boogeyman entity. (Star Trek: Shabonee: "The Boogeyman")