Atlas GNSS Global Correction Service

Atlas GNSS Global Correction Service

Atlas GNSS Global Correction Service from Hemisphere GNSS is the most flexible service of its kind. Atlas provides correction data ranging in accuracy from metres to sub-decimetres for GPS, GLONASS, and BeiDou constellations using L-Band satellites.



The Atlas GNSS Global Correction Service is flexible and scalable, and delivers its correction signals via L-band satellites. Accuracies range from meter to sub-decimeter levels. Virtually the entire globe is covered, as the service leverages about 200 reference stations worldwide with L-band satellites distributing the Atlas corrections.

The Atlas correction service can be used with all Hemisphere Atlas-capable, multi-GNSS hardware, both single- and multi-frequency. Hemisphere’s innovative BaseLink and SmartLink capabilities also allows third-party GNSS receivers to use Atlas corrections.

When using multi-frequency hardware, the Atlas service corrects more satellites than ever before. This enables faster convergence times and ensures that the service is reliable and robust, even in foliage or canopy covered areas. Instant global sub-meter positioning accuracy is achieved that is comparable to SBAS, but typically more robust.


  • Advanced Stationary Re-Convergence
  • Network RTK Augmentation
  • Exclusive Agnostic Capability
  • Positioning Sustainability

Technical Specifications

Positioning Accuracy:Down to 4 cm RMS in certain applications
Positioning Sustainability:Cutting-edge position quality maintenance in the absence of correction signals
Convergence Time:10 – 40 minutes
Global Ionospheric Model:Real-time ionospheric activity and data


Atlas Basic:50 cm 95% (30 cm RMS)
H30:30 cm 95% (15 cm RMS)
H108 cm 95% (4 cm RMS)


Atlas GNSS Global Correction Service from Hemisphere GNSS is a subscription service available through Canal Geomatics. If you would like to learn more about it, please use the Request Pricing form to get in touch with us.