MAGNET GPS Station - Photo by Geoff Blewitt

Station ID : ALPP

Station operator information:

from RINEX headers

Data processed by:

Geoffrey Blewitt, Nevada Geodetic Lab.

Latitude: 34.824

Longitude: -118.695

Height: 918.073 meters

Time Series Data

(ascii text)
24 Hour Final Solutions


env xyz


env xyz
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 NA12 NA12 Cleaned Rapid 5 min.
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Not Available
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Steps Information for this station

Station ID Date
Equipment Change Type/
or Event ID
ALPP09DEC09 Elevation_Cutoff_Changed - -
ALPP13JAN16 Antenna_Code_Changed - -
ALPP13JAN16 Elevation_Cutoff_Changed - -
ALPP13JAN16 Receiver_Make_and_Model_Changed - -
ALPP03DEC22 nc21323712 6.5 239.1
ALPP10APR04 ci14607652 7.2 422.9
ALPP18MAY27 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