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SECORX GNSS Correction Services

SECORX is a subscription-based service that provides over-the-air corrections for Precise Point Positioning (PPP).



SECORX is a subscription-based service that provides over-the-air GNSS corrections for Precise Point Positioning (PPP).


The SECORX services are available in 3 different plans to suit different user requirements:


This plan uses TerraStar technology to provide sub-decimeter positioning to applications on land and up to 60 km offshore. To suit the different needs of users, SECORX-60 activation plans are available for different time durations.


For users that require highly accurate and reliable GNSS positioning, the SECORX-C augmentation service gives reliable and solid PPP positioning capabilities that cover the Earth’s surface.

Septentrio receivers and dual-frequency code are combined with SECORX-C data utilizing innovative positioning algorithms and error models to decrease and eliminate errors. The use of GLONASS and GPS satellites with Septentrio receivers enables the user to maintain a reliable and accurate position in even extremely difficult environments, while the solution convergence time is also reduced.


If you require decimeter level position accuracy on land globally, the SECORX-D augmentation service is for you. Due to its resilience to ionospheric scintillation and satellite masking, it is able to provide more precision.

The service uses Precise Point Positioning (PPP) techniques for both GLONASS and GPS, removing or minimizing all GNSS system errors by estimation, precise modelling, or direct calculation.

As Septentrio’s receivers use dual-frequency GNSS hardware, it allows for calculating and removing of local ionospheric errors, while estimating tropospheric delays within the calculation. Other sources of errors are also modelled, including phase windup, earth tides and ocean loading.

With SECORX-D, you’ll get better than 10 cm horizontal and 20 cm vertical accuracy (95%). These results make SECORX-D ideally suited for auto steer and machine guidance.

SECORX Seismic

The SECORX Seismic service has been specifically tuned to be able to respond to the typical dynamics of earthquakes, further improving Septentrio LOCK+ algorithm to maintain tracking under the typical earthquake fingerprint vibrations.


The SECORX GNSS correction services from Septentrio are available through TerrisGPS. If you would like more information about this product, please feel free to get in touch with us by completing the Request Pricing form.

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Client Testimonials

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"Thank you for your prompt service. All seems to be working well again. Your techs were very helpful with the troubleshooting."
J.O. - Ground Navigation
"Thanks for all the troubleshooting help, also to John for his assistance and the prompt answers from you guys!"
F.A. - Survey Industry

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