"Rotation" is an unreleased track from 1999's The Fragile. Stated in an interview with the Nailed Podcast, Charlie Clouser believes that it is a early iteration of The Big Come Down, but could not say for certain.
No track of this name was on the 2017 release The Fragile: Deviations 1, which was a compilation of instrumentals and extended or unused tracks from The Fragile sessions.
It is one of two tracks that feature in background photos from this era that remain unreleased, the other being "Stained", which may be a working title for "Underneath It All".