2011 ST257

Outer belt minor planet

Designation: 2011 ST257
Class: Outer belt
Semi-major axis: 3.9879507 AU
Eccentricity: 0.2598721
Inclination: 1.31106°
Absolute magnitude (H): 16.51
Perihelion: 2.952 AU
Aphelion: 5.024 AU