Home›Asteroids›101544 1998 YS21101544 1998 YS21Main-belt minor planetDesignation(101544) 1998 YS21ClassMain-beltSemi-major axis3.1908515 AUEccentricity0.1391105Inclination4.7635°Absolute magnitude (H)14.75Perihelion2.747 AUAphelion3.635 AU