129840 1999 RU21

Main-belt minor planet

Designation: (129840) 1999 RU21
Class: Main-belt
Semi-major axis: 2.5842677 AU
Eccentricity: 0.198725
Inclination: 11.92396°
Absolute magnitude (H): 15.78
Perihelion: 2.071 AU
Aphelion: 3.098 AU