A compact 4,617-source celestial reference frame was built by stacking normal equations from 8, 24, and 32 GHz VLBI catalogs with full covariance transfer.
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Realization of a multifrequency celestial reference frame through a combination of normal equation systems
A compact 4,617-source celestial reference frame was built by stacking normal equations from 8, 24, and 32 GHz VLBI catalogs with full covariance transfer.