This model was rendered using MATLAB R2016a on the ICQ model of the PSI made by Philip Stooke from the data of the Voyager missions. The original model has a low resolution, so the model was very "poly" look. To avoid this I interpolate into much more points than the original.
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.
Like many other small inner moons of Neptune, It is though to be a pile of junk from previous moons destroyed after the capture of Triton.
Orbital period: 13 hs 18 min 52s.
Composition: Icy body. Rubble pile.
Density: 1.2 g/cm3.
Dimensions: 216 km × 204 km × 168 km
Model scale: 1:4x106 (5cm) 1:2x106 (10cm)
Triton (behind), Larissa (down left) and Proteus (down rigth) in the same scale.