 "Geisei" is a member of the Flora family, one of the largest families of stony asteroids.It orbits the Sun in the inner main-belt at a distance of 1.8–2.7 AU once every 3 years and 4 months (1,215 days).Its orbit has an eccentricity of 0.19 and an inclination of 3° with respect to the ecliptic.