$ ntpq -pn
remote refid st t when poll reach delay offset jitter
==============================================================================
+210.173.160.27 133.243.236.18 2 u 876 1024 377 27.552 3.347 0.170
*210.173.160.57 133.243.236.19 2 u 792 1024 377 27.657 3.477 0.400
+210.173.160.87 133.243.236.17 2 u 793 1024 377 27.708 3.763 0.324
