Orbital Elements
- Epoch: 2460200.5 JD
- Semi-major axis: 2.588 AU
- Eccentricity: 0.1648
- Inclination: 9.12 deg
- Longitude of Ascending Node: 86.08 deg
- Argument of Periapsis: 97.86 deg
- Mean Anomaly: 184.13 deg
Physical Characteristics
- Diameter: 152.00000 km
- Magnitude: 6.54
- Albedo: 0.159
- Spectral type (Tholen): S
- Spectral type (SMASS): S
Shape Model Characteristics
At 2434741.0 JD:
- Spin period in hours: 15.02987
- Spin latitude: -15.0
- Spin longitude: -15.0
- Spin angle: 0.0
- Quality level: 4.0
This shape model of asteroid Irene is provided by the DAMIT database from The Astronomical Institute of the Charles University in Prague, Czechia.
The model is rotated on its Z axis for the purpose of this visualization, which may not reflect actual rotation.