GNSS data

The GNSS (Global Navigation Satellite System), or satellite positioning system, includes all satellite navigation systems. It allows you to know your location, anywhere in the country. Theoretical GNSS specifications estimate the accuracy of the position obtained from a receiver to be approximately 15 meters in planimetry and 25 meters in altimetry. By combining the data with that of another receiver placed on a known geodesic point, the accuracy of the obtained position can vary from a few centimeters to a few meters, depending on the type of receiver used. In order to increase accuracy, the Government of Quebec records data continuously through a network of 18 GNSS stations. These stations are located on geodetic points that are free of any obstacles and capture data from the GPS and GLONASS constellations. Some of these stations receive signals from the Galileo constellation. This data is available in the standard exchange formatReceiver Independent Exchange Format (RINEX), version 2.11. This format is recognized by the majority of GNSS data processing software. The data is accessible on the __ [ftp server] (ftp://ftp.mrn.gouv.qc.ca/Public/GPS)) of the MRNF or using the __…

Publisher

Government and Municipalities of Québec

Resources

7

Catalogue metadata updated

2026-09-09