SPN1 (WA)

SPN1 is a dual-frequency GNSS CORS reference station operated by NOAA's National Geodetic Survey in Spokane County, Washington, tracking GPS and GLONASS constellations. Surveyors can utilize this station for real-time kinematic (RTK) positioning, static post-processing, and network solutions within the NGS_CORS network. The station provides continuous observations for high-accuracy surveying, mapp