Software

ASSIST

Ephemeris-quality integrations of test particles in the solar system, built on REBOUND. Used for orbit fitting and prediction of asteroids and comets. Paper (Holman et al. 2023)

Sorcha ephemeris generator

Fast prediction of which survey images contain which solar system objects, and where, for the Sorcha survey simulator of Rubin Observatory's Legacy Survey of Space and Time. Documentation · Code · Paper (Holman et al. 2025)

layup

Orbit fitting at the scale of the Rubin Observatory survey.

REBOUND (WHFast)

The Wisdom–Holman map is the basis of REBOUND's WHFast integrator.

HelioLinC

Linking of minor-planet detections across nights in sparse survey data. A version of it, developed by Ari Heinze, runs in Rubin Observatory's solar system pipeline.