gnu@ring.wraith.sf.ca.us[1040] ntpq -p
     remote           refid      st t when poll reach   delay   offset  jitter
==============================================================================
*GPS_NMEA(0)     .GPS.            0 l  183  512  377    0.000    0.005   0.002
+GENERIC(0)      .GPS.            0 l   20   64  377    0.000    0.018   0.002
+wraith.wraith.s .GPS.            1 u  202  512  377    0.218    0.024   0.035
+thrall.wraith.s .GPS.            1 u  199  512  377    0.169    0.025   0.004
+smidge.wraith.s .GPS.            1 u   18   64  377    0.320   -0.002   0.016