English: Sped-up simulation of Psamathe's orbit around Neptune, from 1600 to 2400 (800-year duration). The orbit is being viewed at an oblique angle above the ecliptic plane. The bright red fading trail with the white head represents Psamathe's position and trajectory over one orbital period at the given frame. The entire path of Psamathe from 1600 to 2400 is also shown in the background as a very faint, dark red tangled loop. For scale, the orbits of Neptune's two largest irregular moons Triton (tiny magenta dot) and Nereid (magenta outer ellipse) are shown; their orbits precess much more slowly compared to Psamathe.

The trajectory of Psamathe is sourced from JPL Horizons, queried via Python's astroquery module. The 3D positions are visualized via Python's matplotlib module. The Python code for this was partially generated via Claude AI, but I have made necessary corrections (e.g. check queries, adjust timestep, speed, etc.) and visual improvements (labels, colors, opacities, etc.) to ensure that the visualization is accurate.