• MPC Preparation (Info)

  • Orbit Diagrams

    Orbit diagrams are available for a selection of Near-Earth Asteroids and comets. These diagrams are intended to aid in the visualisation of the three-dimensional nature of the orbits and how they are orientated with respect to the orbit of the earth. An explanation of the symbols used on the diagrams is available.

    Please read this statement on our Web policy.

    Near-Earth Objects

    Long-Period Comets

    Periodic Comets