|Epoch 4-Nov-2015 (2455493.5 JD)|
|Semi-major axis||3.4647 AU|
|Longitude of asc. node||50.180 °|
|Argument of periapsis||12.694 °|
|Orbital period||2355.61 days|
|Avg. orbital speed||14.21 km/s|
|Mean diameter||4.0000 km|
|Avg. density||0.298 g/cm3|
|Escape velocity||0.001 km/s|
|Rotation period (synodic)||12.761 hours|
Due to the complex shape of 67P comet, textures given in simple cylindrical projection get misprojected. Most areas are projected correctly enough, but there is a significant amount of distortion on a slope between comet's neck and its smaller lobe - you can see this by applying 'Regions' texture - there are second (and incorrect) copies of Ma'at and Serquet areas near comet's neck, where it should have been Hathor.
With a large amount of data available, different methods were used to create these models:
- SPC models was developed by Robert Gaskell et al. using StereoPhotoClinometry method that is described in Gaskell et al., 'Characterizing and navigating small bodies with imaging data', Meteoritics and Planet. Sci. 43, 1049-1061, 2008
- MSPCD model was developed by Laurent Jorda et al. using Multi-resolution StereoPhotoClinometry by Deformation technique. The MSPCD technique has been described in details by Capanna et al., 'Three-dimensional 3D reconstruction using multiresolution photoclinometry by deformation', The Visual Computer 29, 825-835, 2013 Both methods use data aquired by OSIRIS instrument. On some models the southern hemishpere has smooth areas because that part of comet was not illuminated by the time the models were developed.
- Both NAVCAM-ESA, DLR and Mattias Malmer's models are based on images obtained by spacecraft's navigation camera.
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.
- Churyumov-Gerasimenko (SPG/MSPCD) (PLY 3.6 MB) (OBJ 6.9 MB)
- Churyumov-Gerasimenko (SPC, 2017 - 96k poly) (PLY 1.8 MB) (OBJ 3.3 MB)
- Churyumov-Gerasimenko (SPC, 2017 - 199k poly) (PLY 3.6 MB) (OBJ 6.9 MB)
- Churyumov-Gerasimenko (SPC, 2015 - 96k poly) (PLY 1.7 MB) (OBJ 3.3 MB)
- Churyumov-Gerasimenko (SPC, 2015 - 195k poly) (PLY 3.5 MB) (OBJ 6.8 MB)
- Churyumov-Gerasimenko (MSPCD, 98k poly) (PLY 1.8 MB) (OBJ 3.4 MB)
- Churyumov-Gerasimenko (MSPCD, 191k poly) (PLY 3.5 MB) (OBJ 6.6 MB)
- Churyumov-Gerasimenko (NAVCAM-ESA, 100k poly) (PLY 1.9 MB) (OBJ 3.6 MB)
- Churyumov-Gerasimenko (NAVCAM-ESA, 256k poly) (PLY 4.6 MB) (OBJ 9.1 MB)
- Churyumov-Gerasimenko (DLR, 100k poly) (PLY 1.8 MB) (OBJ 3.4 MB)
- Churyumov-Gerasimenko (DLR, 200k poly) (PLY 3.6 MB) (OBJ 6.9 MB)
- Churyumov-Gerasimenko (Malmer) (PLY 4.6 MB) (OBJ 9.1 MB)
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.
Textures are simple cylindrical projections with prime meridian at the middle, provided at the highest resolution available.
(JPEG, 1936×1016px, 351 KB)