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      Products derived from GNSS data archived in the CDDIS are generated and submitted by the IGS analysis and associate analysis centers.
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- - - The International GNSS Service (IGS) has ensured open access, high-quality GNSS data products since 1994.
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Do you have any question, comment, or feedback? Feel free to contact us at the Central Bureau with this form.

International GNSS Service

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IGS Central Bureau
NASA Jet Propulsion Laboratory
California Institute of Technology
4800 Oak Grove Drive
Mail Stop 238-600
Pasadena, CA 91109
United States of America
Email: CB@igs.org

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The IGS is a service of the International Association of Geodesy (IAG), its Global Geodetic Observing System (GGOS), The International Union of Geodesy and Geophysics (IUGG), and a network member of the International Science Council (ISC) World Data System (WDS).

IUGG International Association of Geodesy

IAG Global Geodetic Observing System

International Union of Geodesy and Geophysics

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