Global GNSS Data for International Terrestrial Reference Frame 2020

International GNSS Service Analysis Centers provide data-derived products for the International Terrestrial Reference Frame (ITRF) 2020. The dataset is hosted by NASA's CDDIS and supports the creation of a precise global coordinate reference system. It represents a multi-agency contribution to defining Earth's fundamental spatial framework.

Use Cases

• Contributing precise station coordinate and velocity estimates to the ITRF2020 global reference frame.
• Analyzing long-term crustal deformation and tectonic plate motion using GNSS time-series data.
• Calibrating and validating global navigation satellite system (GNSS) orbit and clock products.
• Supporting research in solid Earth gravity and geophysical modeling through precise positional data.

Strengths

• Data is produced by the International GNSS Service (IGS) Analysis Centers, a consortium of expert institutions.
• Dataset is a formal contribution to the authoritative International Terrestrial Reference Frame 2020 (ITRF2020).
• Hosted and maintained by NASA's Crustal Dynamics Data Information System (CDDIS), ensuring institutional support.

Limitations

• Specific column names, row counts, and dataset size are not documented on any available platform.
• License information is inconsistently reported: one source lists 'other-license-specified' while another provides no license.
• The temporal coverage and specific time range of the data products are not specified in the provided metadata.

Provenance

Source

International GNSS Service (IGS) Analysis Centers, hosted by NASA CDDIS.

Collection Method

Derived from Global Navigation Satellite System (GNSS) observations and analysis.

Time Range

null

Freshness

2026-03-13 01:51:20.912125

Geography

Global