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Description

These derived data products are intensive (1-hour experiments) Earth orientation parameter (EOPI) solutions obtained with Very Long Baseline Interferometry (VLBI). The CDDIS archive contains EOPI solutions provided by various analysis centers of the International VLBI Service for Geodesy and Astrometry (IVS). The VLBI EOPI series products includes one for each Universal Time (UT1) intensive session with a minimum of one year of data. The operational EOPI product is available at IVS Data Centers 24 hours after the Intensive data become available.

Version Description

VLBI Intensive Earth Orientation Parameter (EOPI) solutions

Product Summary

Platforms
GROUND-BASED OBSERVATIONS
Instruments
VLBI Station
Projects
IVS
Spatial Extent

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

Location
GLOBAL
Coordinate System
GEODETIC
Granule Spatial Representation
GEODETIC
Temporal Extent
1979-01-01 to Present
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
C2398710772-CDDIS
Data State
ACTIVE
Number of Files/Granules
11
Processing Level
1
Science Keywords
GLOBAL COORDINATE REFERENCE SYSTEM ,
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). (2024). Very Long Baseline Interferometry (VLBI) Intensive Earth Orientation Parameter Series (EOP-I) product [Dataset]. NASA Crustal Dynamics Data Information System. https://doi.org/10.5067/VLBI/VLBI_INTENSIVE_EOPI_001 Date Accessed: 2026-08-12

File Naming Convention

AAACCCCC.eopi.gz