The Kei/Yuri factor had relevance for planetary scans.
The Kei/Yuri factor of a plane of frozen methane on the surface of Theta VIII was 12×10−3. (TNG: "The Royale"; okudagram)
It is an in-joke reference to the Japanese series Dirty Pair, whose main protagonists were Kei and Yuri.
External link[]
- Kei/Yuri factor at Memory Beta, the wiki for licensed Star Trek works