Orbital Elements
- Epoch: 2460200.5 JD
- Semi-major axis: 2.768 AU
- Eccentricity: 0.1406
- Inclination: 3.56 deg
- Longitude of Ascending Node: 63.69 deg
- Argument of Periapsis: 94.18 deg
- Mean Anomaly: 205.32 deg
Physical Characteristics
- Diameter: 71.70000 km
- Magnitude: 7.87
- Albedo: 0.2560
- Spectral type (Tholen): S
- Spectral type (SMASS): Sk
Shape Model Characteristics
At 2450392.0 JD:
- Spin period in hours: 12.03251
- Spin latitude: -53.0
- Spin longitude: -53.0
- Spin angle: 0.0
- Quality level: -1.0
This shape model of asteroid Sirona 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.