This is my first model made directly with astronomical data, and not from an existing model, or topographical map. I've use MATLAB R2016a on the stereo images of the body nicknamed "Ultima Thule" taken by the New Horizons probe in the flyby of the object, after visiting Pluto system. The visible side when the probe flyby it, was the southern hemisphere by the right hand rule convention; the northern hemisphere was made by interpolation, and guessed from the available data.
The file's names explained: name_1_x_10_y.stl is 1 : x * 10y. So _1_6_10_7 is 1:600000000 or one in 60 million.
2014MU69 is the farthest object visited by an space probe, and the first one to be discovered after the launch of the probe, and not during the flyby, unlike Ida's moon Dactyl, or the Jupiter's moon Thebe, that were unknown before the approach to them. It is small for a Trans Neptunian Object, although being comparable in size with the biggest Near Earth Asteroids (like Eros). This is because the observational bias, objects beyond the orbit of Neptune are more difficult to see because of the distance. It is one of the best example of a contact binary, composed of two flat parts. The bigger one is nicknamed "Ultima", seems to be composed of many smaller objects; and the other is called "Thule", that is likely to be a single wider object with at least one big crater (on the visible part). Like many other TNOs, the surface of 2014MU69 is expected to be relatively undisturbed since its accretion in the early Solar System.
Type: TNO. Qubewano.
Orbit: Sun. Kuiper Belt.
Orbital period: 298 yr.
Composition: Icy body. Rubble pile. Contact binary.
Density: ? g/cm3.
Dimensions: 35 km × 22 km × 7 km.
Model scale: 1:2x105 (17cm) 1:5x105 (7cm)