MAGNET GPS Station - Photo by Geoff Blewitt

Station ID : QSEC

Data attribution information: DOI Database

DOI link for this station:

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: 9.840 degrees

Longitude: -85.357 degrees

Height: 17.449 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

Readme Files:

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

Nearest 4 Other Stations Distance


16.10 km


18.94 km


19.73 km


31.62 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
QSEC19DEC14 Antenna_Code_Changed - -
QSEC09JAN08 usp000gscg 6.1 132.1
QSEC10MAY20 usp000hczt 5.9 133.2
QSEC10JUN01 usp000hdem 6.0 138.4
QSEC11MAY13 usp000j1jg 5.9 115.1
QSEC12AUG27 usp000jqvm 7.3 435.7
QSEC12SEP05 usp000jrsw 7.6 27.6
QSEC12SEP08 usp000js0m 5.7 27.1
QSEC12OCT24 usp000jucg 6.5 28.1
QSEC13JUN15 usc000hrnr 6.5 274.0
QSEC13SEP05 usb000jigi 5.9 117.1
QSEC14APR11 usc000pgsi 6.6 208.2
QSEC14OCT14 usb000slwn 7.3 424.5
QSEC16APR16 us20005j32 7.8 1211.5
QSEC16NOV24 us10007c4w 6.9 449.8
QSEC17SEP08 us2000ahv0 8.2 1091.6
QSEC17NOV13 us2000bmhe 6.5 102.1
QSEC18JAN10 us1000c2zy 7.5 872.6
QSEC20AUG24 us7000bcbv 6.0 84.1
QSEC21JUN10 us7000ebw8 5.7 97.9
QSEC21NOV09 us7000fskw 6.3 199.6
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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