VTD9 (VT)

GNSS CORS station VTD9 in Derby, US, operated by NOAA National Geodetic Survey as part of the NGS_CORS network. Tracks GPS and GLONASS constellations to deliver real-time RTK corrections and post-processed static data for high-accuracy positioning. Surveyors can use this reference station for centimeter-level network surveys, deformation monitoring, and datum transformation work.