Yuri (or Braslota II) was the second planet in the Braslota system. This system was located in the Oneamisu sector. Starfleet had the eighty-year old starcruiser USS Hathaway temporary placed in orbit of this planet in 2365 when the planet was chosen as an element in Operation Lovely Angel, a Starfleet battle simulation.
In the exercise, the Hathaway and the USS Enterprise-D were to attempt to combat for orbital space around Yuri, commit an attack on first planet Totoro, and defend against assault from next planet, Kei. (TNG: "Peak Performance")