Time Stamp

Every command on the ZY returns a time stamp. The time stamp is encoded as a double (see section 2.7). The integral portion of the number is the Modified Julian Day. The fractional portion is the time of day, as a fraction of the day, UTC. This time has a resolution of 1 mS. For non-measurement commands, the time stamp is taken upon successful completion of the command. For commands that involve a phase measurement, the time stamp is taken immediately after the trigger is given to the A/D converter.