This attibute lets you specify how many times the joining condition is to be achieved before joining occurs. This attribute is active for most joining conditions (those capable of being satisfied more than once in the course of an orbit propagation).
Astrogator <Satellite Object Path> SetValue <Attribute Path>.JoiningConditions.{Joining Condition}.RepeatCount <Value>
Specify the number of times the condition must be satisfied before the propagation ends or moves on to the designated automatic sequence.
Astrogator */Satellite/Satellite1 SetValue MainSequence.SegmentList.Follow.JoiningConditions.AscendingNode.RepeatCount 3
STK Programming Interface 11.0.1