GPS timeseries at JPL

We produce various position timeseries using the GipsyX software in a Precise Point Positioning mode. We use our Network Processor software to manage the large numbers of PPP jobs on a linux cluster. In some cases, a troposphere series is also retained.

Our series:

Western North America & Global

• 1992-present
• Version "repro2018a" completed Oct 2019 using GipsyX in ITRF14 is current
• Position and troposphere series are extended on a weekly basis
• Metadata from SOPAC xml files (login as anonymous, password=email)
• View a map of the network (opens in new window)
• Download from: https://sideshow.jpl.nasa.gov/pub/JPL_GPS_Timeseries/repro2018a/raw/
• also available via the joint SIO and JPL ESESES MEaSUREs website
• Higher-level data products based on this series:
  • At the ESESES MEaSUREs website for JPL and SIO Solid Earth joint data products:
    • MGVIZ GIS-based plotting tool
    • a combination of the JPL and SIO series
    • outliers removed; offsets determined; spatial filtering
    • derived troposphere products
    • derived strain, transient, and water storage products.
  • At JPL:
    • plots
    • outliers removed; offsets determined and velocities are estimated
• 1992-08-16 to present:
  • Created using GIPSY's precise point positioning (PPP) capability with JPL GIPSY Final Orbits, reprocessed in 2018 in IGS14
  • GPT2 troposphere with GPT2 nominals
  • IGS14 absolute antenna calibrations
  • Second-order ionosphere

Extended network

• Updated irregularly
• Includes PPP solutions for permanent and campaign sites

Japan GEONET

• All data courtesy of GEONET/GSI
• Daily PPP positions: Inquire for availability
• Subdaily Tohoku-Oki positions and coseismic offsets from the ARIA project: Download location

Disclaimer: JPL's time series products are intended for research and educational purposes only. Commercial use requires prior approval from the Jet Propulsion Laboratory, California Institute of Technology.

Who we are:

• Angelyn.Moore (at) jpl.nasa.gov - Network Processor development; Western North America & Global; Japan GEONET; Extended network
• Sharon.Kedar (at) jpl.nasa.gov - Western North America & related strain products
• Michael.Heflin (at) jpl.nasa.gov - JPL higher-level data products

Susan.Owen (at) jpl.nasa.gov also contributed to these timeseries, and we enjoy helpful interactions with many other GIPSY developers at JPL.