The CDDIS archives and distributes the following types of space geodesy data:

• Global Satellite Navigation Systems (GNSS)
  • Global Positioning System (GPS)
  • GLObal NAvigation Satellite System (GLONASS)
• Satellite Laser Ranging (SLR)
• Very Long Baseline Interferometry (VLBI)
• Doppler Orbitography and Radio-positioning Integrated by Satellite (DORIS)

Click on any region in the following map (or in the navigation bar below the image) to view a regional enlargement detailing GPS, GLONASS, SLR, VLBI, and DORIS site locations.

GIFs: North America | California| South America | Pacific | Europe | Asia | Africa |
Australia| Antarctica
PDFs: North America | California| South America | Pacific | Europe | Asia | Africa |
Australia| Antarctica

Maps by data type are also available:

• All data types (GIF, PDF)
• GPS
  • Daily, 30-second network (GIF, PDF)
  • Hourly, 30-second network (GIF, PDF)
  • Hourly, high-rate network (GIF, PDF)
• GLONASS (GIF, PDF)
• SLR (GIF, PDF)
• VLBI (GIF, PDF)
• DORIS (GIF, PDF)

In addition to viewing locations of these sites, users can determine data availability by selecting one of the following queries to the CDDIS archive:

• GPS monument name lookup, data holdings by monument name, region
• GLONASS monument name lookup, holdings by monument name, region
• SLR data holdings by station by year, satellite by year, station by year and time period, satellite by year and time period
• DORIS data holdings by station by year, satellite by year