Flag indicating whether the barycenter will be computed using only the primary body in the CelestialSystem, or using all the CelestialObjects in the CelestialSystem. Note that the built-in planets (other than the Earth) represent the positions of their system barycenters. You can create a custom CelestialObject to represent the body center of any planet.
RecomputeBarycenter == 1 means that all the bodies in the system will be used to compute the barycenter of the CelestialSystem.
RecomputeBarycenter == 0 means that the primary body will be used as the system barycenter. FreeFlyer will automatically treat the largest body in the system as the primary body.
Timing Precision Mode
This page describes functionality in millisecond timing precision mode.