Asteroid (951) Gaspra
Orbital characteristics
| Epoch 1-Jul-2021 (2459396.5 JD) | |
| Apoapsis | 2.5941 AU |
| 3.8807×108 km | |
| Periapsis | 1.8258 AU |
| 2.7314×108 km | |
| Semi-major axis | 2.2099 AU |
| 3.306×108 km | |
| Eccentricity | 0.1738195 |
| Inclination | 4.1060 ° |
| Longitude of asc. node | 253.05 ° |
| Argument of periapsis | 129.79 ° |
| Orbital period | 1199.96 days |
| 3.285 years | |
| Avg. orbital speed | 19.88 km/s |
Physical characteristics
| Mean diameter | 12.200 km |
| Extent | 18.2x10.5x8.9 km |
| Rotation period (sidereal) | 7.0420 hours |
| Albedo | 0.246 |
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Links
- JPL Small-Body database
- IAU Minor Planet Center
- Views of the Solar System - Gaspra
- Wikipedia article on Gaspra
Shape model data sources
- Stooke, P., Small Body Shape Models. EAR-A-5-DDR-STOOKE-SHAPE-MODELS-V1.0. NASA Planetary Data System, 2002 link
- Small Body Optical Shape Models link
- Hanuš et al., An anisotropic distribution of spin vectors in asteroid families. Astronomy and Astrophysics 559, A134, 2013 link
Texture sources
- Stooke. P., Stooke Small Bodies Maps V2.0. MULTI-SA-MULTI-6-STOOKEMAPS-V2.0. NASA Planetary Data System, 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.
- Gaspra (Stooke) (PLY 94 KB) (OBJ 160 KB)
- Gaspra (Thomas) (PLY 595 KB) (OBJ 1.1 MB)
- Gaspra (Lightcurve 1) (PLY 39 KB) (OBJ 61 KB)
- Gaspra (Lightcurve 2) (PLY 38 KB) (OBJ 61 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
Textures are simple cylindrical projections with prime meridian at the middle, provided at the highest resolution available.
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Gaspra (Mosaic)
(JPEG, 2048×1024px, 82 KB)
