Asteroid (18) Melpomene
Orbital characteristics
| Epoch 1-Jul-2021 (2459396.5 JD) | |
| Apoapsis | 2.7960 AU |
| 4.1828×108 km | |
| Periapsis | 1.7961 AU |
| 2.687×108 km | |
| Semi-major axis | 2.2961 AU |
| 3.4349×108 km | |
| Eccentricity | 0.2177342 |
| Inclination | 10.132 ° |
| Longitude of asc. node | 150.36 ° |
| Argument of periapsis | 228.11 ° |
| Orbital period | 1270.81 days |
| 3.479 years | |
| Avg. orbital speed | 19.42 km/s |
Physical characteristics
| Mean diameter | 139.59 km |
| Rotation period (sidereal) | 11.570 hours |
| Albedo | 0.181 |
Models:
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Links
Shape model data sources
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.
- Melpomene (Hanuš 2016) (PLY 39 KB) (OBJ 62 KB)
- Melpomene (Hanuš 2017) (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.