n # Sb     travel-time (and amplitude) tables
 6    # number of depth samples
    0.00    5.00   15.00   30.00   40.00   50.00
 31    # 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
# Travel-time/amplitude for z =    0.00
       0.000
      15.530
      36.491
      48.371
      60.251
      72.687
      84.391
      96.096
     107.801
     119.506
     131.210
     142.915
     154.620
     166.324
     178.029
     189.734
     201.439
     213.143
     224.848
     236.553
     248.258
     259.962
     271.667
     283.372
     295.077
     306.781
     318.486
     330.191
     341.896
     353.600
     365.305
# Travel-time/amplitude for z =    5.00
       1.397
      15.593
      35.592
      47.471
      59.351
      71.769
      83.473
      95.178
     106.883
     118.588
     130.292
     141.997
     153.702
     165.407
     177.111
     188.816
     200.521
     212.225
     223.930
     235.635
     247.340
     259.044
     270.749
     282.454
     294.159
     305.863
     317.568
     329.273
     340.978
     352.682
     364.387
# Travel-time/amplitude for z =   15.00
       4.190
      16.170
      33.793
      45.672
      57.552
      69.933
      81.638
      93.342
     105.047
     116.752
     128.456
     140.161
     151.866
     163.571
     175.275
     186.980
     198.685
     210.390
     222.094
     233.799
     245.504
     257.209
     268.913
     280.618
     292.323
     304.028
     315.732
     327.437
     339.142
     350.846
     362.551
# Travel-time/amplitude for z =   30.00
      -1.000
      -1.000
      31.578
      43.458
      55.338
      67.652
      79.356
      91.061
     102.766
     114.471
     126.175
     137.880
     149.585
     161.290
     172.994
     184.699
     196.404
     208.108
     219.813
     231.518
     243.223
     254.927
     266.632
     278.337
     290.042
     301.746
     313.451
     325.156
     336.861
     348.565
     360.270
# Travel-time/amplitude for z =   40.00
      -1.000
      18.246
      30.125
      42.005
      53.885
      66.153
      77.858
      89.563
     101.268
     112.972
     124.677
     136.382
     148.087
     159.791
     171.496
     183.201
     194.905
     206.610
     218.315
     230.020
     241.724
     253.429
     265.134
     276.839
     288.543
     300.248
     311.953
     323.658
     335.362
     347.067
     358.772
# Travel-time/amplitude for z =   50.00
      -1.000
      -1.000
      -1.000
      -1.000
      54.083
      65.788
      77.493
      89.197
     100.902
     112.607
     124.312
     136.016
     147.721
     159.426
     171.131
     182.835
     194.540
     206.245
     217.949
     229.654
     241.359
     253.064
     264.768
     276.473
     288.178
     299.883
     311.587
     323.292
     334.997
     346.702
     358.406