Trimble RTX® represents a family of GNSS correction services that provide customers with high-accuracy positioning via Satellite or the Internet. While stand-alone GNSS positioning without corrections provide horizontal accuracies that are typically more than 1 meter, Trimble RTX correction services can provide horizontal accuracies better than 2 cm. CenterPoint® RTX correction service is a flagship product of the Trimble RTX product portfolio. CenterPoint® RTX Marine is a real-time correction service, using an absolute positioning technique to model and correct GNSS biases, including clock errors, satellite orbit errors, and atmospheric delays, for construction and geospatial applications in the Marine sector.