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 | 2024-12-07T17:52:34.000Z |
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 13 Used 0
|
| PRN |
Elv | Azm |
SNR | Used |
GP3 | 3 | 58 | 184 | 0 | N |
GP4 | 4 | 65 | 0 | 0 | N |
GP6 | 6 | 12 | 293 | 0 | N |
GP7 | 7 | 33 | 256 | 0 | N |
GP8 | 8 | 1 | 154 | 0 | N |
GP9 | 9 | 44 | 317 | 0 | N |
GP16 | 16 | 53 | 85 | 0 | N |
GP26 | 26 | 31 | 51 | 0 | N |
GP27 | 27 | 6 | 124 | 0 | N |
GP31 | 31 | 16 | 53 | 0 | N |
SB133 | 46 | 48 | 201 | 0 | N |
SB135 | 48 | 50 | 194 | 0 | N |
SB138 | 51 | 49 | 163 | 0 | N |
These statistics are generated every 15 minutes.
===============================================================================
Reference ID : 47505300 (GPS)
Stratum : 1
Ref time (UTC) : Sat Dec 07 15:41:07 2024
System time : 0.000000056 seconds fast of NTP time
Last offset : -0.000000110 seconds
RMS offset : 0.000000055 seconds
Frequency : 2.365 ppm fast
Residual freq : -0.000 ppm
Skew : 0.002 ppm
Root delay : 0.000000001 seconds
Root dispersion : 0.007450067 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 123m -717ns[ -825ns] +/- 208ns
^- time-a-g.nist.gov 1 10 377 384 -1039us[-1039us] +/- 46ms
^- time-a-wwv.nist.gov 1 10 377 704 -3506us[-3506us] +/- 36ms
^- time-a-b.nist.gov 1 10 377 192 -4300us[-4300us] +/- 35ms
===============================================================================
.- 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 20 8 299 -0.000 0.002 -1312ns 237ns
time-a-g.nist.gov 41 24 14h +0.049 0.096 +293us 2705us
time-a-wwv.nist.gov 42 27 12h +0.045 0.082 -1667us 1991us
time-a-b.nist.gov 32 22 10h +0.026 0.133 -149us 2071us
===============================================================================