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Description

Terrestrial Reference Frame (TRF) product derived from the analysis of Very Long Baseline Interferometry (VLBI) data. The Terrestrial Reference Frame product includes station positions, velocities, and correlations. A minimum of three years of data are used in each solution. The TRF operational product is available quarterly at International VLBI Service for Geodesy and Astrometry (IVS) Data Centers.

Version Description

VLBI Terrestrial Reference Frame products

Product Summary

Platforms
GROUND-BASED OBSERVATIONS
Instruments
VLBI Station
Spatial Extent

N: 90 S: -90 E: 180 W: -180

Location
GLOBAL
Coordinate System
GEODETIC
Granule Spatial Representation
GEODETIC
Temporal Extent
2002-01-01
Data Partner
Crustal Dynamics Data Information System, Geodesy and Geophysics Laboratory, Earth Sciences Division, Sciences and Exploration Directorate, Goddard Space Flight Center, NASA (CDDIS)
Concept ID
C2404809434-CDDIS
Data State
ACTIVE
Number of Files/Granules
0
Processing Level
1
Science Keywords
GLOBAL COORDINATE REFERENCE SYSTEM

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

International VLBI Service for Geodesy and Astrometry (IVS). (2022). Very Long Baseline Interferometry (VLBI) Terrestrial Reference Frame product [Data set]. NASA Crustal Dynamics Data Information System. https://doi.org/10.5067/VLBI/VLBI_TRF_PRODUCTS_001 Date Accessed: 2026-05-06

File Naming Convention

AC_nameYYYYX.trf.gz

Documents