Ephemeris Comparison
Ephemeris comparison evaluates the conjunction risk of several ephemerides for one RSO side by side, against the conjunction data currently in effect for that RSO. Where CDM comparison on an event page examines a single close approach, ephemeris comparison covers every close approach an ephemeris produces, so an operator can identify the mitigation plan that lowers risk overall without introducing a new close approach or moving an existing one later in time.