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 +118ms[ +118ms] +/- 1000us
#* PPS 0 3 377 6 -65ns[ -270ns] +/- 116ns
^? research.knoq.nl 2 10 377 629 -4049us[-3988us] +/- 35ms
^? ntpsvr2.npl.co.uk 1 9 377 333 -2581us[-2567us] +/- 7719us
^? 176-58-124-166.ip.linode> 2 10 377 518 -369us[ -322us] +/- 25ms
^? moocat.me 2 10 377 616 -194us[ -135us] +/- 34ms
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 +117ms +119ms N
* PPS N --T-- --T-- 5 1.0 -539ns +311ns N
T research.knoq.nl N ----- ----- 628 1.0 -39ms +32ms N
T ntpsvr2.npl.co.uk N ----- ----- 332 1.0 -10ms +5687us N
T 176-58-124-166.ip.linode> N ----- ----- 517 1.0 -25ms +22ms N
T moocat.me N ----- ----- 615 1.0 -26ms +24ms 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 53 31 52 -32.809 65.267 +117ms 2077us
PPS 6 3 41 -0.009 0.058 -21ns 201ns
research.knoq.nl 8 6 120m +0.798 0.755 -1445us 754us
ntpsvr2.npl.co.uk 6 4 60m +0.644 1.009 -1752us 325us
176-58-124-166.ip.linode> 62 27 10h +0.287 0.029 -1821us 766us
moocat.me 21 11 378m +0.447 0.110 -339us 880us
Command: chronyc tracking
Reference ID : 50505300 (PPS)
Stratum : 1
Ref time (UTC) : Tue Sep 16 07:19:55 2025
System time : 0.000000174 seconds slow of NTP time
Last offset : -0.000000230 seconds
RMS offset : 0.000000254 seconds
Frequency : 2.993 ppm fast
Residual freq : -0.009 ppm
Skew : 0.051 ppm
Root delay : 0.000000001 seconds
Root dispersion : 0.000006296 seconds
Update interval : 8.0 seconds
Leap status : Normal