MAGNET GPS Station - Photo by Geoff Blewitt

Station ID : NCKU

Station operator information from: RINEX headers

When using products from this system please cite Blewitt et al., (2018) for the processing plus also the citation for the original data.


Latitude: 22.997 degrees

Longitude: 120.223 degrees

Height: 98.221 meters

Time Series Data

(ascii text)
24 Hour Final Solutions


tenv3 or tenv




5 Minute Final Solutions


kenv tar files for download

Quality Assurance (QA) Files


.qa.gz file download

5 Minute Troposphere Solutions

Tot./Wet Zenith Delay, etc.

tar file download

New!: Loading Predictions.
See this README file for explanation.


tenv3 file with extra columns

Readme Files:

tenv3 format, tenv format, xyz format,
kenv format, trop format, QA file format,
Loading triplet enhanced tenv3 files
(Note: When using the MIDAS software
use the .tenv files linked above)

Nearest 4 Other Stations Distance


0.36 km


43.14 km


135.29 km


199.02 km

Time Series Plots

Click on the buttons on the left below to choose from available reference frames, latencies, and sample rates. Original, Cleaned (outlier removed) and detrended (using MIDAS rate) plots are available. See plot explanation page for further explanations on plot contents.

GPS time series plot
GPS time series plot
GPS time series plot
GPS time series plot
GPS time series plot
QA plot
Load prediction plot

Steps Information for this station

Station ID Date
Equipment Change Type/
or Event ID
NCKU14MAY12 Logfile_Changed - -
NCKU15AUG21 Receiver_Make_and_Model_Changed - -
NCKU15FEB13 usb000tp6y 6.2 129.7
NCKU15APR20 us200027ps 6.4 251.9
NCKU16FEB05 us20004y6h 6.4 39.3
NCKU18FEB06 us1000chhc 6.4 193.4
NCKU22MAR22 us6000h6nr 6.7 148.4
NCKU22MAR22 us6000h6rn 5.9 137.8
NCKU22SEP17 us7000i8ui 6.5 122.6
NCKU22SEP18 us7000i90q 6.9 115.8
NCKU22SEP18 us7000i928 5.9 112.1
Distance is from this station to earthquake epicenter in km. A potential step record appears when this distance is less than 10^(M/2 - 0.79) where M is earthquake magnitude.
Steps for all stations are given in the master step file database.

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