Asteroid (2) Pallas
Orbital characteristics
Epoch 17-Dec-2020 (2459200.5 JD) | |
Apoapsis | 3.4118 AU |
5.104×108 km | |
Periapsis | 2.1370 AU |
3.1969×108 km | |
Semi-major axis | 2.7744 AU |
4.1504×108 km | |
Eccentricity | 0.2297500 |
Inclination | 34.854 ° |
Longitude of asc. node | 172.97 ° |
Argument of periapsis | 310.29 ° |
Orbital period | 1687.90 days |
4.621 years | |
Avg. orbital speed | 17.64 km/s |
Physical characteristics
Mean diameter | 545.00 km |
Extent | 582x556x500 km |
Mass | 2.143×1020 kg |
Avg. density | 2.528 g/cm3 |
Equatorial surface gravity | 0.193 m/s2 |
0.020 g | |
Escape velocity | 0.324 km/s |
Rotation period (sidereal) | 7.8132 hours |
Albedo | 0.101 |
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Links
Shape model data sources
- Torppa et al., Shapes and rotational properties of thirty asteroids from photometric data. Icarus 164, 2003 link
- Carry et al., Physical properties of (2) Pallas. Icarus 205, 2009 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.
- Pallas (Torppa) (PLY 39 KB) (OBJ 66 KB)
- Pallas (Carry) (PLY 10 KB) (OBJ 17 KB)
- Pallas (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.