$ ntpq -pn
remote refid st t when poll reach delay offset jitter
==============================================================================
+210.173.160.27 133.243.236.19 2 u 472 512 377 27.278 1.423 0.770
*210.173.160.57 133.243.236.18 2 u 371 512 377 28.048 1.674 0.098
+210.173.160.87 133.243.236.17 2 u 409 512 377 29.383 1.056 3.023
