MAGNET GPS Station - Photo by Geoff Blewitt

Station ID : NDH3

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: 23.995 degrees

Longitude: 121.565 degrees

Height: 92.061 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


4.80 km


5.21 km


5.39 km


5.56 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
GPS time series plot
GPS time series plot
QA plot

Steps Information for this station

Station ID Date
Equipment Change Type/
or Event ID
NDH314MAY21 usb000qxnd 5.6 27.5
NDH315FEB13 usb000tp6y 6.2 151.7
NDH315MAR23 us10001ps8 5.5 35.6
NDH315APR20 us200027ps 6.4 79.6
NDH315APR20 us200027rt 6.0 90.7
NDH315APR20 us200027ru 6.1 90.4
NDH315AUG13 us100031xw 5.6 94.0
NDH316FEB05 us20004y6h 6.4 153.3
NDH316APR27 us10005bxy 5.5 35.5
NDH316MAY12 us10005gpt 5.8 88.6
NDH316MAY12 us10005gq4 5.7 91.1
NDH318FEB04 us1000cfn6 6.1 23.1
NDH318FEB04 us1000cfnf 5.5 24.8
NDH318FEB06 us1000chhc 6.4 18.1
NDH318FEB07 us1000ci9y 5.7 19.6
NDH318OCT23 us1000hfxx 5.8 106.2
NDH319APR18 us700038c1 6.1 9.8
NDH319AUG07 us6000522g 5.8 65.2
NDH320DEC10 us7000cpqz 6.1 99.0
NDH321APR18 us6000e2mt 5.5 22.9
NDH321APR18 us6000e2mv 5.8 15.9
NDH321AUG04 us6000f29v 5.8 115.6
NDH321OCT24 us6000fx56 6.2 63.3
NDH322JAN03 us7000g8n3 6.2 70.5
NDH322MAR22 us6000h6nr 6.7 68.2
NDH322MAR22 us6000h6rn 5.9 64.4
NDH322MAR22 us6000h6s3 5.5 54.6
NDH322MAR22 us6000h6sl 5.8 65.5
NDH322MAY09 us7000h82f 6.2 93.9
NDH322JUN20 us7000him8 5.9 39.1
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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