Home›Asteroids›121231 1999 RD31121231 1999 RD31Inner minor planetDesignation(121231) 1999 RD31ClassInnerSemi-major axis1.9613293 AUEccentricity0.0833195Inclination24.43537°Absolute magnitude (H)16.46Perihelion1.798 AUAphelion2.125 AU