% Echo Location Surface Spectrum in units of mm/sqrt(Hz)
% 64 Frequency Bands are 0.01562500 Hz wide(first frequency band is centered at 0.00830078)
     555
     317
     249
     244
     347
    1036
    2747
    3411
    2320
    1410
    1860
    1430
    1374
    1178
    1077
     925
     753
     654
     525
     588
     439
     493
     430
     297
     335
     276
     278
     231
     234
     235
     200
     175
     138
     157
     141
     155
     133
     120
      84
     100
      96
      93
      98
      55
      51
      52
     -24
      17
      25
      55
      17
      30
      24
     -14
      26
      42
      30
     -42
     -51
     -25
       4
     -40
     -40
     -20