Table 2 Parameters used in the Doppler drift rate calculation from equation (3). Data for Prox Cen and Prox Cen b were taken from refs. ³⁸ and ³¹. Using the listed uncertainties, we calculate maximum drift rate errors of \({\dot{\nu }}_{\rm{max}}=\) 0.24 mHz s⁻¹ and \({\dot{\nu }}_{\rm{max}}=\) 1.38 mHz s⁻¹ at 704 MHz and 4,032 MHz respectively

From: A radio technosignature search towards Proxima Centauri resulting in a signal of interest