$ ntpq -pn remote refid st t when poll reach delay offset jitter ============================================================================== +210.173.160.27 133.243.236.19 2 - 254 512 377 27.670 0.851 1.216 +210.173.160.57 133.243.236.20 2 - 228 512 277 28.728 0.761 0.574 *210.173.160.87 133.243.236.19 2 - 183 512 377 27.774 2.494 0.414