Data Help with Data GPS/GNSS Data Data Access Search and Access Tools File Server File Server Access Examples Web Services Real-time GPS/GNSS Data Derived Data Products Associated Data Products Data Formats Data Management Data Operations


The UNAVCO Data Center handles data management tasks for GPS/GNSS data and products from thousands of globally distributed permanent stations and ten thousand globally distributed campaign sites. A large fraction of the data are contributed by UNAVCO community investigators. Our GNSS Data Management Overview illustrates the UNAVCO GPS/GNSS data flow from stations and campaigns to users.

See our video about Open Access Geodetic Data at UNAVCO for a general overview of Data available at UNAVCO.
View a video about UNAVCO GPS/GNSS Data

UNAVCO archives and distributes GPS/GNSS data in a variety of product levels, formats and access methods. Product levels distinguish between raw data (Level 0), pre-processed data (Level 1), and post-processed/derived (Level 2) data products. In addition to direct file server access, web based graphical user interfaces, command line clients, and web services are available.

GPS/GNSS Data Products Access Method / Product Format
Data Product Level Description Generation Frequency Creator File Server Web Graphical Interface Web Service
Level 1 Standard rate data (15-sec) Daily, varies UNAVCO RINEX RINEX n/a
High rate data (1-, 2-, 5-sps) Varies UNAVCO RINEX RINEX n/a
Survey-mode (campaign) data Daily, varies UNAVCO n/a RINEX n/a
Level 2 Position solution time series Daily MIT ASCII, CSV ASCII, CSV ASCII, CSV
Velocity solutions Monthly MIT ASCII ASCII ASCII, CSV
Position offsets (e.g. coseismic) Varies MIT ASCII n/a n/a
Tropospheric parameter estimates Daily CWU ASCII n/a n/a
Position solution QA parameters Daily, varies UNR ASCII ASCII n/a
Position solutions (loose) Daily CWU SINEX SINEX n/a
Position solutions (constrained) Daily MIT SINEX SINEX n/a

Data Access

Please review the Data policy for data archived at UNAVCO.

Search GPS/GNSS Data

Search and Access Tools

  • GNSS Data Access Notebook.
  • DAIv2 [Web application End Of Life due to the retirement of Flash in web browsers].
  • DAIv1 - Original Data Archive Interface web application.
    • Allows search for specifics used in the acquisition of data archived at UNAVCO, e.g., monument style, receivers, or antennas searched via model or serial number.
    • Provides search for campaign data by Principal Investigator (PI) or campaign name. Certain campaign data sets have no permanent monuments associated with the data files collected and these campaigns can only be searched with DAIv1.

File Server

NOTE: Please update your data file access scripts to use our new HTTP File Server.
GPS/GNSS File Server Layout provides a guide for the layout of our data file server holdings of GPS/GNSS and Meteorological data. It also links to HTTP file access script examples.
For historic reference, see our legacy FTP Server Layout.

Web Services

Web Services provide RESTful HTTP access to data (e.g. position time series for stations analyzed by GAGE and Central Washington University , meteorological data from surface sensors colocated with GPS/GNSS stations) and selected metadata.

Real-time GPS/GNSS

Real-time GPS/GNSS Data is available after first requesting an account by emailing See the Streaming GNSS Data Policy on real-time streaming data.

Derived Data

Derived Data Products (also referred to as Level 2 Products) are created from GNSS raw data and other lower level products such as RINEX.

Associated Data

Associated Data Products are created from other products and models.

Custom Data

Custom Data Requests can be made for collecting high-rate or real-time GPS/GNSS data at specific sites for specified time periods.

Data Formats

Community Data Formats have been developed and are hosted at the UNAVCO/GAGE Data Center. UNAVCO has helped develop GPS/GNSS data and metadata standards, like BINEX, in collaboration with the UNAVCO/GAGE geosciences community. UNAVCO hosts documentation about the BINEX data and metadata standard developed by the UNAVCO community and GNSS receiver manfacturers.

Data Operations

A collection of Data Operations pages for monitoring of archiving and QC.


Last modified: 2022-03-16  14:35:38  America/Denver