$ ntpq -pn
remote refid st t when poll reach delay offset jitter
==============================================================================
+210.173.160.27 133.243.236.19 2 u 816 1024 377 28.939 2.271 0.596
*210.173.160.57 133.243.236.18 2 u 721 1024 377 27.558 1.986 0.547
+210.173.160.87 133.243.236.18 2 u 773 1024 377 28.018 2.428 0.079
