Weights are calculated based on signal interpolation by sincs with time step of 1 hour and memory 4320 hours. Weights are provided up to degree 5. A sinc concept is explained in Appendices A and B of Kruglyakov et al (2022) "A proper use of the adjacent land-based observatory magnetic field data to account for the geomagnetic disturbances during offshore directional drilling" Space Weather, https://doi.org/10.1029/2022SW003238. 1-D (radially-symmetric) conductivity model is based on Table 1 from Kuvshinov et al (2021) "Probing 3-D electrical conductivity of the mantle using 6 years of Swarm, CryoSat-2 and observatory magnetic data and exploiting matrix Q-responses approach" Earth, Planets and Space, 73, https://doi.org/10.1186/s40623-020-01341-9. The first (surface) layer has 1 km thickness and represents globally averaged conductance ( 9287 S) of landmasses, oceans, and marine sediments.