Text files containing simulated magnetic field vectors in Ganymede-centered spherical (GSPH) coordinates along the trajectories of Galileo and Juno close flybys of Ganymede. Each data file contains columns of the event time (date + hr:min:sec), the radial (Sim_Br), polar (Sim_Bt) and azimuthal (Sim_Bp) components of the simulated magnetic fields, except for the G28 flyby output, which contains multiple columns of the simulated magnetic field vectors from simulation time steps of 70 to 131.