Shared TypeScript types (e.g., 3D tuples, equation result interfaces) used across the monorepo to keep APIs predictable and safe.
Authoritative physical and astronomical constants in SI units for consistent calculations.
Time and epoch utilities for space applications (e.g., building blocks toward Julian dates, conversions, and ephemeris-friendly time handling).
Curated, well-tested orbital mechanics and dynamics formulas (e.g., Newtonian gravity, vis-viva, Kepler's 3rd law, escape/circular speeds, specific energy, specific angular momentum, peri/apoapsis radii).