=======================================
seisfile      =SOURCE/prem1a
modelfile     =
recfile       =COSY/rec_cosy
time          =200.
nop           =8
stab          =.75
izfree        =8                           ! izfree >= nop/2+1
Model -----------------------
model_type    =1
vs0           =6000.
rho0          =2000.
Source ----------------------
source_type   =2
sdepth        =600000.
aa            =50.
it0           =100
Receivers------------------------------
izrec         =8
JUNK------------------------------
icheck        =5
isnap         =100
iout          =4
iflush        =500
