This is a chrony time server with gpsd
running on a Raspberry Pi with a TimeHat!
A filled shape means the satellite was used in
the last fix.
Green-yellow-red colors indicate signal to noise ratio in dBHz
green=best,
yellow=fair,
and red=worst.
Circles are GPS and QZSS satellites.
Diamonds indicate augmentation (SBAS, WAAS, etc.) satellites.
Triangles pointing up are Galileo satellites.
Triangles pointing down are BeiDou satellites.
Squares are GLONASS satellites.
Fix Data |
Fix Type | No Fix | |
Fix Status | Normal Fix | |
Time |
UTC | 2024-11-20T22:55:20.000Z |
Leap Seconds | 18 | |
Position |
Altitude HAE | n/a | |
Altitude MSL | n/a | |
Geoid Separation | n/a | |
Velocity |
Speed | n/a | |
Climb | n/a | |
velN | n/a | |
velE | n/a | |
velD | n/a | |
Track True | n/a | |
Track Magnetic | n/a | |
Magnetic Variation | n/a | |
Dilution of Precision
|
GDOP
| n/a |
HDOP |
n/a |
PDOP
| n/a |
TDOP |
n/a |
XDOP
| n/a |
YDOP
| n/a |
VDOP |
n/a |
Error Estimates |
epc |
n/a |
eph |
n/a |
eps |
n/a |
ept | 0.005 s |
epx |
n/a |
epy |
n/a |
epv |
n/a |
sep |
n/a |
ecef pAcc |
n/a |
ecef vAcc |
n/a |
Satellites |
Seen 18 Used 0
|
| PRN |
Elv | Azm |
SNR | Used |
GP2 | 2 | 10 | 110 | 0 | N |
GP4 | 4 | 2 | 151 | 0 | N |
GP5 | 5 | 11 | 288 | 0 | N |
GP7 | 7 | 58 | 70 | 0 | N |
GP8 | 8 | 27 | 48 | 0 | N |
GP9 | 9 | 27 | 162 | 0 | N |
GP13 | 13 | 22 | 318 | 0 | N |
GP14 | 14 | 58 | 268 | 0 | N |
GP17 | 17 | 24 | 186 | 0 | N |
GP20 | 20 | 7 | 257 | 0 | N |
GP21 | 21 | 10 | 92 | 0 | N |
GP22 | 22 | 39 | 250 | 0 | N |
GP27 | 27 | 0 | 34 | 0 | N |
GP30 | 30 | 66 | 348 | 0 | N |
SB133 | 46 | 48 | 201 | 0 | N |
SB135 | 48 | 50 | 194 | 0 | N |
SB138 | 51 | 49 | 163 | 0 | N |
QZ4 | 196 | 0 | 309 | 0 | N |
These statistics are generated every 15 minutes.
===============================================================================
Reference ID : 47505300 (GPS)
Stratum : 1
Ref time (UTC) : Wed Nov 20 15:16:54 2024
System time : 0.000000095 seconds fast of NTP time
Last offset : -0.000000004 seconds
RMS offset : 0.000000075 seconds
Frequency : 2.409 ppm fast
Residual freq : -0.000 ppm
Skew : 0.001 ppm
Root delay : 0.000000001 seconds
Root dispersion : 0.026904400 seconds
Update interval : 16.0 seconds
Leap status : Normal
===============================================================================
.-- 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
===============================================================================
#* GPS 0 4 0 448m -30ns[ -34ns] +/- 208ns
^- time-a-g.nist.gov 1 10 377 686 +1834us[+1834us] +/- 43ms
^- time-a-wwv.nist.gov 1 10 377 302 -11ms[ -11ms] +/- 41ms
^- time-a-b.nist.gov 1 10 377 620 -2610us[-2610us] +/- 32ms
===============================================================================
.- 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
==============================================================================
GPS 30 19 464 -0.000 0.001 -32ns 127ns
time-a-g.nist.gov 64 33 20h -0.023 0.059 +804us 2619us
time-a-wwv.nist.gov 64 30 20h -0.027 0.063 -2152us 2762us
time-a-b.nist.gov 63 34 21h -0.019 0.034 -1565us 1782us
===============================================================================