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Reference: M. Brozović, M. R. Showalter, R. A. Jacobson, M. W. Buie (2015) "The orbits and masses of satellites of Pluto". Icarus 246:317-329.
R. A. Jacobson, V. Lainey (2014) "Martian Satellite Orbits and Ephemerides". Planet. Space Sci. 102:35-44. A scientific Ephemeris shows planetary positions’ current overview using the spherical polar coordinate system, a system used by mathematicians and physicians on a variety of applications to plot the trajectory of a moving body. The current planetary positions are then used in preparing maps of stars in the sky, and telescopes. In astronomy, it finds use in determining the movement and the centre of the planets, stars and galaxies. D. Durante, M. Parisi, D. Serra, M. Zannoni, V. Notaro, P. Racioppa, D. R. Buccino, G. Lari, L. Gomez Casajus, L. Iess, W. M. Folkner, G. Tommei, P. Tortora, S. J. Bolton (2020) "Jupiter's Gravity Field Halfway Through the Juno Mission". Geophys. Res. Lett. 47:e86572.M. Brozović, R. A. Jacobson (2021) "Ephemeris update ura116 for the irregular satellites of Uranus". Interoffice Memo. 392R-21-009 (internal document).
R. A. Jacobson (2021) "Ephemerides of the unnamed Saturnian irregulars including the newly discovered S/2019~S1 — SAT450". personal communication to Horizons/NAIF. R. A. Jacobson (2009) "The Orbits of the Neptunian Satellites and the Orientation of the Pole of Neptune". AJ 137:4322-4329.M. Brozović (2020) "Update of the inner Neptunian satellite orbits — NEP097". personal communication to Horizons/NAIF.