Riften 5 was a satellite of Vita 15. On Riften 5, the Fifth Doctor visited the vid-archives and saw genetic tests that were run on Daleks after the War of Sharpened Hearts. (PROSE: Christmas on a Rational Planet) Lytton was born on Riften 5. (TV: Attack of the Cybermen) Riften 5 did not have pubs. (PROSE: Mistaken Identity)