n # Rg     travel-time (and amplitude) tables
 2    # number of depth samples
    0.00    5.00
 41    # number of distance samples
    0.00    0.50    1.00    1.50    2.00    2.50    3.00    3.50    4.00    4.50
    5.00    5.50    6.00    6.50    7.00    7.50    8.00    8.50    9.00    9.50
   10.00   10.50   11.00   11.50   12.00   12.50   13.00   13.50   14.00   14.50
   15.00   15.50   16.00   16.50   17.00   17.50   18.00   18.50   19.00   19.50
   20.00
# Travel-time/amplitude for z =    0.00
       0.000
      18.532
      37.065
      55.597
      74.130
      92.662
     111.195
     129.727
     148.260
     166.792
     185.325
     203.857
     222.390
     240.923
     259.455
     277.988
     296.520
     315.052
     333.585
     352.118
     370.650
     389.182
     407.715
     426.248
     444.780
     463.312
     481.845
     500.377
     518.910
     537.443
     555.975
     574.508
     593.040
     611.573
     630.105
     648.638
     667.170
     685.702
     704.235
     722.768
     741.300
# Travel-time/amplitude for z =    5.00
       1.667
      18.607
      37.102
      55.622
      74.149
      92.677
     111.207
     129.738
     148.269
     166.801
     185.333
     203.864
     222.396
     240.928
     259.460
     277.993
     296.525
     315.057
     333.589
     352.121
     370.654
     389.186
     407.718
     426.251
     444.783
     463.316
     481.848
     500.380
     518.913
     537.445
     555.977
     574.510
     593.042
     611.575
     630.107
     648.640
     667.172
     685.705
     704.237
     722.769
     741.302