Asteroid (127) Johanna
Orbital characteristics
| Epoch 1-Jul-2021 (2459396.5 JD) | |
| Apoapsis | 2.9379 AU |
| 4.395×108 km | |
| Periapsis | 2.5710 AU |
| 3.8462×108 km | |
| Semi-major axis | 2.7545 AU |
| 4.1206×108 km | |
| Eccentricity | 0.0665931 |
| Inclination | 8.2452 ° |
| Longitude of asc. node | 31.139 ° |
| Argument of periapsis | 93.254 ° |
| Orbital period | 1669.76 days |
| 4.572 years | |
| Avg. orbital speed | 17.93 km/s |
Physical characteristics
| Mean diameter | 122.00 km |
| Rotation period (sidereal) | 12.800 hours |
| Albedo | 0.042 |
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Links
Shape model data sources
- Marciniak et al., Photometry and models of selected main belt asteroids IX. Introducing Interactive Service for Asteroid Models (ISAM). Astronomy and Astrophysics 545, id.A131, 2012 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.
- Johanna (Model 1) (PLY 39 KB) (OBJ 61 KB)
- Johanna (Model 2) (PLY 37 KB) (OBJ 59 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.