Spacecraft to use to define the initial epoch for the filtering process. At the first call of the filter process, all relevant objects will be synched to the epoch of this spacecraft, at the time of the execution of the Filter initialization. If no Spacecraft is specified, then the epoch of the first registered Spacecraft will be used.
Timing Precision Mode
This page describes functionality in millisecond timing precision mode.
Click here to see the documentation for this object in nanosecond timing precision mode.