Determination of optimized frequency and frequency ratio values from over-determined sets of clock comparison data

Abstract

We summarize a recently developed method for analyzing over-determined sets of clock frequency comparison data to derive optimized values for the frequency ratios between each of the contributing standards. This least-squares adjustment procedure, based on the approach used by CODATA to derive a self-consistent set of values for the fundamental physical constants, is used to deduce optimized frequency and frequency ratio values from the international body of clock comparison data available in September 2015.