% Echo Location Surface Spectrum in units of mm/sqrt(Hz)
% 128 Frequency Bands are 0.00781250 Hz wide
    1234
     446
     364
     373
     530
     365
     318
     246
     208
     166
     284
     331
     459
     239
     269
     271
     229
     250
     244
     271
     262
     233
     316
     357
     269
     389
     298
     220
     276
     210
     144
     201
     230
     246
     273
     128
     120
     197
      81
     124
     179
     215
     140
     162
     120
      28
     179
     190
     166
      81
     170
     -44
      46
      69
      90
      43
     150
     -57
     -14
     136
     -68
      70
      -5
      99
     -32
      95
      87
      73
      83
     106
     -93
      33
      43
     101
     -62
     -96
    -100
      91
      57
     154
     105
     102
     -22
     147
     103
    -116
     -90
     -81
    -120
      81
     -97
     -83
    -116
     -37
     -18
      82
    -100
      84
     -84
     -73
      34
     -53
     -59
      37
     136
      66
     112
     -82
     -71
      85
     -66
     -80
      92
      41
     -48
      95
     -62
     -36
     -76
     -29
     -28
     126
     -65
      62
    -101
    -103
      59
     -82