Home›Asteroids›31391 1998 YA531391 1998 YA5Main-belt minor planetDesignation(31391) 1998 YA5ClassMain-beltSemi-major axis2.2428908 AUEccentricity0.0463449Inclination3.2349°Absolute magnitude (H)16.36Perihelion2.139 AUAphelion2.347 AU