GNSS IGS Final Orbit and Reference Frame Product Summary

NASA's Crustal Dynamics Data Information System provides a derived product set of Global Navigation Satellite System final orbit and reference frame data. Analysis Centers of the International GNSS Service produce daily satellite and ground receiver clock values, orbits, and Earth rotation parameters, considered the most consistent and highest quality IGS solutions. The dataset includes data from GPS, GLONASS, and, since 2011, other systems like Galileo, Beidou, QZSS, IRNSS, and SBAS.

Use Cases

• Analyzing crustal motion and plate tectonics based on precise satellite orbit and reference frame data.
• Calibrating satellite and ground receiver clocks using the combined clock solution files.
• Studying Earth rotation parameters (ERP) derived from the official IGS final products.
• Validating autonomous geo-spatial positioning algorithms with high-quality final orbit data.

Strengths

• Contains the official IGS final products, described as the most consistent and highest quality solutions.
• Includes data from multiple global navigation satellite systems (GPS, GLONASS, Galileo, Beidou, etc.) since 2011.
• Products are generated on a regular weekly schedule, suggesting a structured and maintained data pipeline.

Limitations

• Key metadata such as row count, file size, and specific column names are unknown across all sources.
• The dataset's license is listed as 'other-license-specified' without further detail, creating potential usage ambiguity.
• Data has a latency of 13 to 20 days from the observation date, which may not be suitable for real-time applications.

Provenance

Source

NASA Crustal Dynamics Data Information System (CDDIS) and International GNSS Service (IGS) Analysis Centers.

Collection Method

Derived from GNSS data retrieved from ground receivers by IGS Analysis Centers, which is then combined by the IGS Analysis Center Coordinator.

Freshness

Last updated on 2026-04-10 according to datagov metadata.

Geography

Global coverage.