Repeat ground track numbering: The path number in the repeat ground track cycle corresponding to the initial conditions and the number of revolutions in the repeat cycle.

FirstPathNum	Path numbers are incremented concurrently with pass numbers, but are limited to a range of 1 to the number of revolutions in the repeat cycle. Dimensionless.
RevsToRepeat	Once the path number reaches the number of revolutions in the repeat cycle, the next path number is 1. Dimensionless.