Home›Asteroids›553504 2011 RU21553504 2011 RU21Main-belt minor planetDesignation(553504) 2011 RU21ClassMain-beltSemi-major axis2.3255802 AUEccentricity0.1083444Inclination6.27835°Absolute magnitude (H)17.8Perihelion2.074 AUAphelion2.578 AU