$ ntpq -pn remote refid st t when poll reach delay offset jitter ============================================================================== +210.173.160.27 133.243.236.18 2 u 736 1024 377 30.571 -2.611 0.430 +210.173.160.57 133.243.236.20 2 u 726 1024 377 27.917 -1.645 3.362 *210.173.160.87 133.243.236.19 2 u 695 1024 377 28.041 -1.511 0.543