Home›Asteroids›17978 1999 JS5417978 1999 JS54Main-belt minor planetDesignation(17978) 1999 JS54ClassMain-beltSemi-major axis2.2746493 AUEccentricity0.160868Inclination4.17354°Absolute magnitude (H)14.88Perihelion1.909 AUAphelion2.641 AU