TerraStar Correction Services

TerraStar GNSS Correction Services

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TerraStar GNSS Correction Services improve accuracy and performance by providing reliable positioning even in difficult environments. They also simplify equipment requirements by eliminating a base station and can be used as the sole source for GNSS hardware and corrections.



Use TerraStar GNSS Correction Services from NovAtel provides accurate sub-meter or decimeter positioning across the globe. Four service levels are offered – TerraStar-L, TerraStar-C, TerraStar-C PRO and TerraStar-X.

Long-trusted as a strategic partner for high-precision positioning technology, NovAtel offers a complete solution using TerraStar Correction Services delivered directly to your GNSS receiver. Combining over 20 years of GNSS receiver expertise with the highest reliability clock and orbit data from our world-wide reference network means you have assured, reliable positioning anywhere, anytime.

TerraStar Correction Services offer a seamlessly integrated solution that delivers global coverage in any environment.

Over 90 GNSS reference stations that are located around the world are operated, maintained and controlled by TerraStar. There are six Geostationary communication satellites, which means two beams are always visible from anywhere on earth. The TerraStar network has three network control centres and backup to front line support is available 24 hours a day, seven days a week./p>

TerraStar is available for use in a variety of applications including precision agriculture, construction, survey, UAV and ground truth systems. With a range of options to fit your needs, TerraStar is as precise as you need to be.


  • Complete global coverage from 90+ independently owned and operated GNSS reference stations.
  • 3 geographically separated Network Control Centers ensuring over 99.9% availability.
  • Ownership over end-to-end correction generation process to provide industry-leading data quality.
  • Broadcast over 6 geostationary communication satellites for overlapping global coverage.
  • Corrections transmitted over a minimum of 3 beams (Triple-L Band tracking) directly to end user so you’re never without correction data.
  • 24/7/365, all-weather correction services combined with NovAtel’s superior OEM receiver technology allows continuous operation even through correction outages up to 5 minutes.
  • Online subscription and account management website for easy activation when you need it.
  • Scalable service levels and flexible subscription plans for any application.
  • A seamlessly integrated solution from a single source including GNSS hardware and corrections.

Service Levels

PerformanceTerraStar-LTerraStar-CTerraStar-C PROTerraStar-X
Horizontal Accuracy:40 cm (RMS)
50 cm (95%)
4 cm (RMS)
5 cm (95%)
2.5 cm (RMS)
3 cm (95%)
2.0 cm (RMS)
2.5 cm (95%)
Vertical Accuracy:60 cm (RMS)6.5 cm (RMS)5.0 cm (RMS)5.0 cm (RMS)
Convergence Time:< 5 min< 45 min< 18 min< 1 min
Supported PlatformOEM7, OEM6OEM6OEM7OEM7
Coverage AreaGlobalGlobalGlobalRegional



The TerraStar GNSS Correction Services from NovAtel are available through Canal Geomatics. If you would like more information about these services, please feel free to get in touch with us by completing the Request Pricing form.

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