% 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) 123 42 61 64 108 166 375 646 579 657 512 440 360 322 373 319 360 330 352 271 339 291 296 242 219 159 178 207 199 151 171 168 172 137 122 129 140 100 106 94 111 72 57 67 44 43 -8 -19 39 47 26 -17 -30 51 25 -23 -20 31 -44 40 -25 -41 13 -52