IGS MADR

MADR is an International GNSS Service (IGS) CORS reference station located in Robledo de Chavela, Spain, tracking GPS, GLONASS, and Galileo constellations. Surveyors can utilize this station for real-time kinematic (RTK) positioning, static post-processing, and network solutions requiring multi-constellation observations. The station provides continuous high-precision GNSS data for geodetic contro