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AsteriaStar
Ephemeris system

The SPICE Toolkit

NASA's information system and software toolkit for computing the geometry of spacecraft and Solar System bodies — where a spacecraft is, where it is pointing, and what it can see. Its shared data files (kernels) are a de facto standard across planetary missions.

Knowledge connections

Sources

The primary and reference sources this topic draws on.

  • NASA JPLJet Propulsion Laboratory / Solar System Dynamics

    Orbital data, ephemerides, and small-body parameters for planets, asteroids, and comets.