Mean square residual of the log brightness of resolve and fast-resolve reconstruction as a function of time for the S-band data. The residual is computed to the final iteration of fast-resolve on the NVIDIA A100 GPU depicted in Fig. B.2, which we believe to be converged. The fast-resolve reconstructions are recomputed with a different random seed. The mean square residual of the fast-resolve reconstructions falls until their curves flatten when they converge. Due to the different hardware, JAX, and CUDA versions, the final results are numerically not exactly identical. The resolve reconstruction (blue curve) does not fully converge in the displayed time range.