model                               :model file
5                                   :#interfaces in model
plotcolors                          :model colors file
m                                   :first plot descriptor (mwq)    ...SEE
dummywell                          :well coordinates                  FILE
s                                   :shooting mode (sd)               NOTES...
geometry                            :receiver geometry              ..........
sg                                  :second plot descriptor (sgq)   ...THIS
t                                   :job descriptor (rlt)              DIRECTORY
demo5                               :output filename(s)
-80.   80.                          :range of takeoff angles 
.5                                  :increment in takeoff angle
11750.0   15750.0  22410.0
15750.0   19900.0  30000.0          : velocities
n                                   :direct wave? (y or n)
                                    :headwave interface numbers (1, 2, ...)
y                                   :primaries? (y or n)
