Home›Asteroids›101566 1999 AO21101566 1999 AO21Main-belt minor planetDesignation(101566) 1999 AO21ClassMain-beltSemi-major axis2.656847 AUEccentricity0.1827135Inclination6.55822°Absolute magnitude (H)15.52Perihelion2.171 AUAphelion3.142 AU