$ ntpq -pn remote refid st t when poll reach delay offset jitter ============================================================================== +210.173.160.27 133.243.236.19 2 u 697 1024 377 27.483 1.593 0.734 *210.173.160.57 133.243.236.19 2 u 646 1024 377 27.181 1.762 0.404 +210.173.160.87 133.243.236.19 2 u 708 1024 377 26.812 2.115 0.156