$ ntpq -pn
remote refid st t when poll reach delay offset jitter
==============================================================================
+210.173.160.27 133.243.236.19 2 u 301 1024 377 27.286 -1.145 0.090
+210.173.160.57 133.243.236.20 2 u 281 1024 377 28.432 -0.992 0.786
*210.173.160.87 133.243.236.20 2 u 219 1024 377 27.170 -1.162 0.324
