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                <gco:CharacterString>Geoscience Australia currently retains the role of the International GNSS Service Analysis Centre Coordinator (IGS ACC) in collaboration with Massachusetts University of Technology (MIT). The IGS ACC is responsible for monitoring the quality of products submitted by individual analysis centers, and combining them to produce the official IGS products. The IGS ACC also has the overall responsibility for coordinating the changes, developments and improvements within the contributing analysis centers to produce the IGS products using the latest models and standards. 

This report details the IGS ACC activities over 2023, which included general quality assessment of the IGS combined products over 2023, introduction of a new IGS Analysis Center (JGX, Japan), extension of the combined products for the third IGS reprocessing campaign (repro3) for 2021-2022, and multi-GNSS ultra-rapid demonstration combined orbits.

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