Comet 67P/Churyumov-Gerasimenko

Orbital characteristics

Epoch 4-Nov-2015 (2455491.5 JD)
Apoapsis5.6842 AU
8.5034×108 km
Periapsis1.2453 AU
1.8629×108 km
Semi-major axis3.4647 AU
5.1832×108 km
Eccentrity0.6405823
Inclination7.0437 °
Longitude of asc. node50.180 °
Argument of periapsis12.694 °
Orbital period2355.61 days
6.449 years
Avg. orbital speed14.21 km/s

Physical characteristics

Mean diameter4.0000 km
Mass1.0×1013 kg
Avg. density0.298 g/cm3
Escape velocity0.001 km/s
Rotation period (synodic)12.761 hours
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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:


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.

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.

Last Modified: 20 Oct 2017