A dated view of a changing orbit
This record uses JPL solution JPL 41, with element epoch JD 2457493.5 TDB. Its osculating eccentricity is 0.589512, inclination 20.1964°, and perihelion distance 1.54082 AU. These describe an instantaneous fitted conic; planetary encounters can change the future orbit.
The explorer evaluates a two-body overview at the selected date. A bounded Horizons vector request offers a separate source-calculated path. The two models can disagree, especially during encounters and far from the element epoch.