European GPS Tracking Data for Geodynamic Studies from IGS

IFAG in Germany provides GPS satellite and ground station data for the European region as part of the International GPS Service for Geodynamics. The dataset includes high-accuracy satellite orbits, Earth rotation parameters, and daily RINEX observation files from a network of permanent tracking sites. The service has been operational since January 1994, with twenty days of data available online.

Use Cases

• Model tectonic plate velocities by analyzing time-series coordinates of permanent GPS tracking stations.
• Predict high-accuracy GPS satellite orbits using estimated orbital parameters with better than 20 cm accuracy.
• Study Earth rotation parameters (polar motion, length of day) derived from the global GPS tracking network.
• Analyze signal propagation and atmospheric effects using daily RINEX files containing phase and pseudorange observations.

Strengths

• Provides centimeter-level accuracy for relative site positions and satellite orbits.
• Based on a network of about 40 globally distributed permanent GPS tracking sites.
• Includes multiple data products: orbits, Earth rotation parameters, and daily RINEX observation files.

Limitations

• Only twenty days of data are immediately available online; older data requires special arrangement.
• Specific sample size, file formats, and column details for the raw observation data are unknown.
• Geographic coverage for the provided regional data is limited to Europe.

Provenance

Source

Institute for Applied Geodesy (IFAG), Frankfurt, Germany, acting as the Regional Data Center for Europe within the International GPS Service for Geodynamics (IGS).

Collection Method

Collected from a global network of permanent GPS tracking sites, processed by IGS Analysis Centers.

Time Range

Service operational since January 1, 1994; specific temporal coverage of archived data is unknown.

Freshness

Data is routinely provided, with a 20-day online rolling window. Update frequency is implied to be daily via RINEX files.

Geography

Regional data center for Europe; data originates from GPS tracking sites, with global coverage for orbits and Earth rotation parameters.