MAGNET GPS Station - Photo by Geoff Blewitt

Station ID : AC21

Station operator information from: RINEX headers

Data attribution information from: UNAVCO DOI Database

from DOI link:

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


Latitude: 55.921 degrees

Longitude: -159.128 degrees

Height: 170.941 meters

Time Series Data

(ascii text)
24 Hour Final Solutions






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

Nearest 4 Other Stations Distance


57.80 km


79.75 km


105.88 km


110.21 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

Steps Information for this station

Station ID Date
Equipment Change Type/
or Event ID
AC2107OCT02 usp000fpqs 6.3 226.6
AC2111FEB02 usp000htz3 5.9 134.9
AC2111MAR11 official20110311054624120_30 9.1 4670.8
AC2115MAY29 ak0156uj8rk3 6.8 182.6
AC2116JAN24 ak01613v15nv 7.1 535.4
AC2116APR02 ak01649w95tp 6.2 141.4
AC2116MAY31 ak0166zpwei8 5.7 75.6
AC2118JAN23 us2000cmy3 7.9 619.6
AC2120JUL22 us7000asvb 7.8 100.2
AC2120JUL22 us7000asx4 6.1 106.0
AC2120JUL22 us7000asy0 5.7 80.7
AC2120JUL22 us6000b29h 5.5 76.3
AC2120OCT06 us6000c5zm 5.9 127.5
AC2120OCT19 us6000c9hg 7.6 150.0
AC2121JUL29 ak0219neiszm 8.2 99.5
AC2121JUL29 ak0219nekhhk 5.9 135.2
AC2121AUG14 us6000f652 6.9 124.7
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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