If the tracks run perfectly E-W then 30nm is assured. But they don't. Taken to extreme, if the tracks run N-S then the spacing is 0nm! But for an average track that jinks a little norther south, thats enough to bring the 30 down so something approaching 25nm. Thats where it comes from.
But at the moment the track message contains...
3.RLATSM OTS LEVELS 350-390. RLATSM TRACKS AS FOLLOWS - NO ASSIGNED RLATSM TRACKS END OF RLATSM OTS.
So there aren't any RLatSM tracks.