Home›Asteroids›21800 1999 TM121800 1999 TM1Main-belt minor planetDesignation(21800) 1999 TM1ClassMain-beltSemi-major axis2.2256369 AUEccentricity0.0558271Inclination8.41497°Absolute magnitude (H)14.8Perihelion2.101 AUAphelion2.350 AU