% 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)
     121
      81
      59
      81
     140
     229
     735
    1560
    2351
    2383
    1346
    1099
     952
     826
     733
     655
     631
     689
     605
     477
     442
     413
     365
     359
     305
     266
     294
     277
     218
     194
     208
     180
     160
     144
     148
     107
     124
     130
      99
     111
     100
     104
      89
      80
      64
      58
      65
      51
      51
      46
      44
      47
     -22
      21
     -43
      20
     -21
       4
     -37
     -46
     -22
     -32
     -24
     -39