Data for "88Sr+ optical clock with 7.9×10−19 systematic uncertainty and measurement of its absolute frequency with 9.8×10−17 uncertainty", Phys. Rev. Appl. (2025)

Data that support the findings of "88Sr+ optical clock with 7.9×10−19 systematic uncertainty and measurement of its absolute frequency with 9.8×10−17 uncertainty", Phys. Rev. Appl. (2025), DOI: https://doi.org/10.1103/czlf-bfvp This work has been partly supported by the projects 15SIB03 OC18, 17FUN07 CC4C, 18SIB05 ROCIT, and 20FUN01 TSCAC, which have received funding from the EMPIR programme cofinanced by the Participating States and from the European Union’s Horizon 2020 research and innovation programme, and the projects 22IEM01 TOCK and 23FUN03 HIOC, which have received funding from the European Partnership on Metrology, co-financed from the European Union’s Horizon Europe Research and Innovation Programme and by the Participating States. The work has also been supported by the Research Council of Finland (decisions 339821 and 328786) and is part of the Research Council of Finland Flagship Programme `Photonics Research and Innovation' (PREIN, decision 320168).