21603 1999 BY

Main-belt minor planet

Designation: (21603) 1999 BY
Class: Main-belt
Semi-major axis: 2.5982432 AU
Eccentricity: 0.1153671
Inclination: 32.08916°
Absolute magnitude (H): 13.94
Perihelion: 2.298 AU
Aphelion: 2.898 AU