These SWMF output files can be generated by running various SWMF tests.
For some output, slight changes to PARAM.in are required (e.g., changing
output format from binary to ascii.)

Note that file names have been changed for simplicity.

SWMF test 3:
------------
y0_ascii.out
y0_binary.out
batslog.log
magnetometers.mag
mag_grid_ascii.out
