 The "Collaborative Asteroid Lightcurve Link" assumes an albedo of 0.24 – derived from 8 Flora, the largest member and namesake of the Flora family – and calculates a diameter of 6.81 kilometers using an absolute magnitude of 13.0.This minor planet is named after the small Japanese village of Geisei, where the discovering observatory is located.Geisei is situated near the city of Kōchi, after which Tsutomu Seki's first discovery, the asteroid 2396 Kochi, is named.