25143 Itokawa scaled one in eight thousand
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A sub-kilometre Near Earth Asteroid visited by the Hayabusa probe.
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Originally published here: 25143 Itokawa scaled one in eight thousand by tato_713 - Thingiverse
This model was plotted using MATLAB R2016a on the ICQ model of the PSI made by Robert Gaskell from the data of the Hayabusa mission.
The file's names explained: name_1_x_10_y.stl is 1 : x* 10^y. So _1_6_10_7 is 1:600000000 or one in 60 million.
25143 Itokawa
This subkilometer Near Earth Asteroid is the smallest natural object visited by a spacecraft. The Hayabusa probe caught more than 1500 particles of regolith from the asteroid. It is a contact binary between two bodies, the smallest seems to be denser, probably monolithic; while the bigger one is porous, probably a rubble pile. This configuration is similar to the bigger Trans Neptunian Object Arrokoth, beside its different composition.
- Type: Near Earth asteroid. Potentially hazardous asteroid.
- Orbit: Sun. Apollo group.
- Orbital period: 557 d.
- Rotational period: 12 h 7 min 55 s.
- Composition: Silicate material. S-type. Rubble pile. Contact binary
- Density: 1.9 g/cm3
- Dimensions: 535 m × 294 m × 209 m
- Model scale: 1:3x103 (18cm) 1:8x103 (7cm)
References
- "Gaskell, R., Saito, J., Ishiguro, M., Kubota, T., Hashimoto, T., Hirata, N., Abe, S., Barnouin-Jha, O., and Scheeres, D., Gaskell Itokawa Shape Model V1.0. HAY-A-AMICA-5-ITOKAWASHAPE-V1.0. NASA Planetary Data System, 2008."
- Surf to STL function for MATLAB