MAGNET GPS Station - Photo by Geoff Blewitt

Station ID : CHOF

Station operator information:

from RINEX headers

Data processed by:

Geoffrey Blewitt, Nevada Geodetic Lab.

Latitude: 35.675

Longitude: 139.531

Height: 93.959 meters

Time Series Data

(ascii text)
24 Hour Final Solutions


env xyz
24 Hour Rapid Solutions

FID (~IGS08)

env readme xyz readme

QA files

ftp link

Rapid 5 Minute Solutions

Available Next Day
(8-32 hr. latency)


ftp link

Cite this product as: Blewitt et al.,(2018).

See this link for suggested full citation text.

Station Plots

Explanation of Plots

IGS08 IGS08 Cleaned Rapid 5 min.
Not Available
Not Available
Not Available

Steps Information for this station

Station ID Date
Equipment Change Type/
or Event ID
CHOF18FEB05 Elevation_Cutoff_Changed - -
CHOF13OCT25 usc000kn4n 7.1 487.6
CHOF13NOV09 usb000kvca 5.6 47.9
CHOF13NOV16 usb000kzuj 5.5 56.7
CHOF14SEP16 usb000scur 5.5 54.2
CHOF14NOV22 usb000syza 6.2 182.5
CHOF15MAY30 us20002ki3 7.8 876.0
CHOF16NOV21 us10007b88 6.9 253.0
CHOF18JUL07 us2000fz0q 5.9 118.9
CHOF18MAY27 Reference_Frame_Change:_IGS08_to_IGS14 - -
Distance is from this station to earthquake epicenter in km. A potential step record appears when this distance is less than 10^(M/2 - 0.8) where M is earthquake magnitude.
Steps for all stations are given in the master step file database (link)

University of Nevada, Reno NGL logo: Designed by Corné    Kreemer and Geoff Blewitt