Chrony Graphs [Data Legend]
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vnStati Graphs
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Chrony - NTP Statistics
Command: chronyc sources -v
.-- Source mode '^' = server, '=' = peer, '#' = local clock.
/ .- Source state '*' = current best, '+' = combined, '-' = not combined,
| / 'x' = may be in error, '~' = too variable, '?' = unusable.
|| .- xxxx [ yyyy ] +/- zzzz
|| Reachability register (octal) -. | xxxx = adjusted offset,
|| Log2(Polling interval) --. | | yyyy = measured offset,
|| \ | | zzzz = estimated error.
|| | | \
MS Name/IP address Stratum Poll Reach LastRx Last sample
===============================================================================
#x NMEA 0 0 377 1 +62ms[ +62ms] +/- 1000us
#* PPS 0 3 377 4 -1021ns[ -938ns] +/- 573ns
^? ntp2.as200552.net 2 10 377 199 -2262us[-2265us] +/- 20ms
^? vps-lon1.orleans.ddnss.de 2 9 377 160 -6417us[-6418us] +/- 16ms
^? pool.ntp0.cam.ac.uk 2 10 377 483 -4159us[-4188us] +/- 10ms
^? ec2-13-42-123-235.eu-wes> 2 10 377 104 -2556us[-2556us] +/- 8406us
Command: chronyc selectdata -v
. State: N - noselect, s - unsynchronised, M - missing samples,
/ d/D - large distance, ~ - jittery, w/W - waits for others,
| S - stale, O - orphan, T - not trusted, P - not preferred,
| U - waits for update,, x - falseticker, + - combined, * - best.
| Effective options ---------. (N - noselect, P - prefer
| Configured options ----. \ T - trust, R - require)
| Auth. enabled (Y/N) -. \ \ Offset interval --.
| | | | |
S Name/IP Address Auth COpts EOpts Last Score Interval Leap
=======================================================================
x NMEA N ----- ----- 0 1.0 +61ms +63ms N
* PPS N --T-- --T-- 3 1.0 -1614ns -199ns N
T ntp2.as200552.net N ----- ----- 198 1.0 -19ms +13ms N
T vps-lon1.orleans.ddnss.de N ----- ----- 159 1.0 -23ms +9985us N
T pool.ntp0.cam.ac.uk N ----- ----- 482 1.0 -11ms +6536us N
T ec2-13-42-123-235.eu-wes> N ----- ----- 103 1.0 -11ms +5857us N
Command: chronyc sourcestats -v
.- Number of sample points in measurement set.
/ .- Number of residual runs with same sign.
| / .- Length of measurement set (time).
| | / .- Est. clock freq error (ppm).
| | | / .- Est. error in freq.
| | | | / .- Est. offset.
| | | | | | On the -.
| | | | | | samples. \
| | | | | | |
Name/IP Address NP NR Span Frequency Freq Skew Offset Std Dev
==============================================================================
NMEA 64 54 63 -18.911 45.734 +62ms 1931us
PPS 15 7 112 +0.002 0.039 +2ns 1082ns
ntp2.as200552.net 10 7 155m -0.111 0.306 -2758us 617us
vps-lon1.orleans.ddnss.de 9 8 77m -0.242 0.144 -6481us 131us
pool.ntp0.cam.ac.uk 8 6 120m -0.151 0.081 -2462us 79us
ec2-13-42-123-235.eu-wes> 14 8 240m -0.050 0.124 -2334us 513us
Command: chronyc tracking
Reference ID : 50505300 (PPS)
Stratum : 1
Ref time (UTC) : Mon Feb 16 17:04:56 2026
System time : 0.000000107 seconds fast of NTP time
Last offset : +0.000000109 seconds
RMS offset : 0.000000661 seconds
Frequency : 14.957 ppm fast
Residual freq : +0.002 ppm
Skew : 0.044 ppm
Root delay : 0.000000001 seconds
Root dispersion : 0.000006609 seconds
Update interval : 8.0 seconds
Leap status : Normal