Asteroid (87) Sylvia
Orbital characteristics
Epoch 1-Jul-2021 (2459396.5 JD) | |
Apoapsis | 3.8073 AU |
5.6956×108 km | |
Periapsis | 3.1543 AU |
4.7187×108 km | |
Semi-major axis | 3.4808 AU |
5.2071×108 km | |
Eccentricity | 0.0938008 |
Inclination | 10.876 ° |
Longitude of asc. node | 73.023 ° |
Argument of periapsis | 263.76 ° |
Orbital period | 2371.97 days |
6.494 years | |
Avg. orbital speed | 15.93 km/s |
Physical characteristics
Mean diameter | 253.05 km |
Mass | 1.48×1019 kg |
Avg. density | 1.745 g/cm3 |
Equatorial surface gravity | 0.062 m/s2 |
0.006 g | |
Escape velocity | 0.125 km/s |
Rotation period (sidereal) | 5.1836 hours |
Albedo | 0.046 |
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Links
Shape model data sources
- Kaasalainen et al., Models of twenty asteroids from photometric data. Icarus 159, 2002 link
- Berthier et al., Physical and dynamical properties of the main belt triple Asteroid (87) Sylvia. Icarus 239, 2014 link
- Hanuš et al., Volumes and bulk densities of forty asteroids from ADAM shape modeling. Astronomy & Astrophysics 601, id.A114, 2017 link
Downloads
Models
Models are given in Stanford Triangle Format (PLY) and Alias Waveform Format (OBJ) - you can use MeshLab or any other tool to convert them to other formats.
- Sylvia (Kaasalainen) (PLY 39 KB) (OBJ 65 KB)
- Sylvia (Berthier) (PLY 16 KB) (OBJ 26 KB)
- Sylvia (Hanuš) (PLY 16 KB) (OBJ 35 KB)
Please note that the models are in planetocentric coordinate system, with Z axis passing through north pole. Actual rotational axis may differ from planetocentric poles, especially for small irregular bodies.
Surface Textures
This object does not have textures yet and is being displayed as a solid gray shape.