D is the distance of the s/c from the Sun (millions of kilometers). V is the s/c heliocentric inertial speed (m/s). Lh is the s/c heliocentric longitude (degrees). The reference direction is the mean equinox of J2000.
Apsides table Pi is the i-th perihelion and Ai is the i-th aphelion.
The eccentricity is calculated as ecc = (DA - DP) / (DA + DP).
The orbital period (T, hours) is calculated as the time between two consecutive perihelia or aphelia.
Nodes table Ai is the i-th ascending node and Di is the i-th descending node.
The reference plane is the mean ecliptic of J2000.