Behavior of perihelion distance (panel a), semi-major axis (panel b), eccentricity (panel c), and inclination to the ecliptic (panel d) of the initially nominal orbit of comet 2P/Encke (red curve) and the orbits of the first set of its clones (green curves) mapping the uncertainty of the determination of the nominal orbit. The evolution is reconstructed backward for 50 000 yr. A non-gravitational force is ignored.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.