Datasets for "All-optical magnetometric characterization of the exchange-coupled antiferromagnet|ferromagnet system Mn$_2$Au|Ni$_{80}$Fe$_{20}$ by terahertz spin-orbit torques", Phys. Rev. B (2026), DOI: https://doi.org/10.1103/86ds-j6vv Y. Behovits1, A. L. Chekhov1, B. Rosinus Serrano1, A. Ruge1, S. Reimers2, Y. Lytvynenko2,3, M. Kläui2, M. Jourdan2 and T. Kampfrath1 1. Department of Physics, Freie Universität Berlin, 14195 Berlin, Germany 2. Institute of Physics, Johannes Gutenberg-Universität Mainz, 55099 Mainz, Germany 3. Institute of Magnetism of the NAS and MES of Ukraine, 03142 Kyiv, Ukraine The datasets are provided for Figures 2,3,5-7 of the main text. Files are provided as comma-separated text files with descriptive column headers. The value delimiter is comma " , ". The decimal separator is period " . "