Calculates the geocentric position and velocity of the Earth/Moon barycenter.
Given a time of observation, calculates the geocentric position and velocity vectors
of the Earth/Moon barycenter (EMB).
The position (x, y, z) components are expressed in AU (astronomical units).
The velocity (vx, vy, vz) components are expressed in AU/day.
Calculates the geocentric position and velocity of the Earth/Moon barycenter.
Given a time of observation, calculates the geocentric position and velocity vectors of the Earth/Moon barycenter (EMB). The position (x, y, z) components are expressed in AU (astronomical units). The velocity (vx, vy, vz) components are expressed in AU/day.