STL6 (IL)

STL6 is a continuously operating GNSS reference station operated by NOAA National Geodetic Survey in Saint Clair County, US, as part of the NGS_CORS network. The station tracks GPS and GLONASS constellations, providing real-time RTK corrections and archival data for static post-processing and positioning applications. Surveyors can access STL6 corrections for centimeter-level accuracy in real-time