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Asteroid (243) Ida

Orbital characteristics

Epoch 22-Mar-2018 (2458200.5 JD)
Apoapsis2.9838 AU
4.4637×108 km
Periapsis2.7441 AU
4.1051×108 km
Semi-major axis2.8639 AU
4.2844×108 km
Eccentrity0.0418497
Inclination1.1290 °
Longitude of asc. node323.76 °
Argument of periapsis113.40 °
Orbital period1770.27 days
4.847 years
Avg. orbital speed17.59 km/s

Physical characteristics

Mean diameter32.000 km
Extent59.8x25.4x18.6 km
Mass4.121×1016 kg
Avg. density2.402 g/cm3
Equatorial surface gravity0.011 m/s2
0.001 g
Escape velocity0.019 km/s
Rotation period (sidereal)4.6336 hours
Albedo0.262
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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: 17 Apr 2018