NRTK Service SPSLux

Overview

SPSLux (Satellite Positioning System Luxembourg) is the national satellite positioning service managed by the Luxembourg Cadastre and Mapping Agency. Operated by the Geodetic Department, SPSLux provides high-precision positioning data free of charge.

The system enables users to determine their position with centimeter-level accuracy, serving as a fundamental reference for both horizontal and vertical positioning. SPSLux supports a wide range of critical applications, including:

  • Cartography and geospatial data collection
  • Land boundary surveying and land administration
  • Precision agriculture
  • Construction and infrastructure development
  • Security and public safety
  • Urban planning and environmental monitoring

 

Services Provided

Real-Time Services

SPSLux offers real-time correction data via internet, supporting:

  • Network RTK (Real-Time Kinematic)
  • RTK
  • DGNSS (Differential GNSS)

These corrections allow GNSS receivers to compute positions in real time at a frequency of 1 Hz.  Under good conditions and with professional use, (N)RTK-based services provide a horizontal positional accuracy (σ) of approximately 2–3 cm and a vertical accuracy (σ) of approximately 3–5 cm. DGNSS, by comparison, achieves a positional accuracy of around 0.5 meters.

Post-Processing Services

SPSLux also provides GNSS observation data in RINEX format from continuously operating reference stations. These files are typically available within 24 hours and support post-processing applications that can achieve millimeter-level accuracy.

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