21808 1999 TR18

Main-belt minor planet

Designation: (21808) 1999 TR18
Class: Main-belt
Semi-major axis: 2.9210873 AU
Eccentricity: 0.1083535
Inclination: 1.78984°
Absolute magnitude (H): 13.96
Perihelion: 2.605 AU
Aphelion: 3.238 AU